{"id":417,"date":"2019-03-11T18:57:10","date_gmt":"2019-03-11T18:57:10","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/sunyltnutrition\/?post_type=chapter&#038;p=417"},"modified":"2020-03-07T22:39:24","modified_gmt":"2020-03-07T22:39:24","slug":"9-2-indicators-of-health-body-mass-index-body-fat-content-and-fat-distribution","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/suny-mcc-ltnutrition\/chapter\/9-2-indicators-of-health-body-mass-index-body-fat-content-and-fat-distribution\/","title":{"raw":"9.2: Indicators of Health: Body Mass Index, Body Fat Content, and Fat Distribution","rendered":"9.2: Indicators of Health: Body Mass Index, Body Fat Content, and Fat Distribution"},"content":{"raw":"<section class=\"mt-content-container\">\r\n<div id=\"s596\" class=\"mt-include\">\r\n<div id=\"skills\">\r\n<div class=\"textbox learning-objectives\">\r\n<h3>Learning Objectives<\/h3>\r\n<ul>\r\n \t<li>Be able to calculate body mass index (BMI)\u00a0given a particular weight and height.<\/li>\r\n \t<li>Name the factors that affect body composition and distribution.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<\/div>\r\nAlthough the terms \"overweight\" and \"obese\" are often used interchangeably and considered as gradations of the same thing, they can denote different things. You weigh what you weigh because of your:\u00a0water weight, lean muscle weight, bone weight, and weight from body fat (adipose). \"<span class=\"margin_term\">Overweight\"<\/span>\u00a0refers to having more weight than is typical for a particular height. That weight\u00a0may be the result of water weight, muscle weight, or fat mass. \"<span class=\"margin_term\">Obese\"<\/span>\u00a0refers specifically to having excess body fat. In most cases people who are overweight also have excessive body fat and therefore body weight is an indicator of obesity in much of the population.\r\n<blockquote>The \u201cideal\u201d healthy body weight for a particular person is dependent on many things, such as frame size, sex (hormone profile), muscle mass, bone density, age, and height. The perception of the \u201cideal\u201d body weight can be\u00a0additionally dependent on cultural factors and the mainstream societal advertisement of beauty.<\/blockquote>\r\nIn this author's opinion, the concept of \"ideal body weight\" is concerning. I feel that each of us should be eating healthfully (not just saying it but doing it), exercising healthfully\u00a0and then allowing our body weight to go where it wants to go. However, medical doctors, public health officials and others needed to find a simple tool to look at patterns of weight gain in the U.S.A. and elsewhere. The easy tool that was developed is called the Body Mass Index (BMI). BMI is a tool meant to tell an individual if they weight too much, too little or just right. BMI\u00a0uses the information that we already have readily available from every doctor's visit: weight and height. The general idea is, if you are very tall and have a low weight you are probably underweight. If you are very short and you weigh a lot you are probably overweight. It is a crude tool but one that can quickly, inexpensively give estimates of overweight and\/or underweight.\r\n<div id=\"section_1\" class=\"mt-section\">\r\n<h2 id=\"The_Body_Mass_Index_(BMI)-596\">The Body Mass Index (BMI)<\/h2>\r\n<span class=\"margin_term\">Body mass index (BMI)<\/span>\u00a0is calculated using\u00a0<strong>height<\/strong>\u00a0and\u00a0<strong>weight<\/strong>\u00a0measurements and is more predictive of health risk than using weight alone. BMI measurements are used to indicate whether an individual may be underweight (with a BMI less than 18.5), overweight (with a BMI over 25), or obese (with a BMI over 30).\u00a0The BMI is defined as the body mass divided by the square of the body height, and is universally expressed in units of kg\/m<sup>2<\/sup>, resulting from mass in kilograms and height in meters.\r\n<div class=\"MathJax_Display\"><span id=\"MathJax-Element-1-Frame\" class=\"MathJax MathJax_FullWidth\" style=\"font-style: normal;font-weight: normal;line-height: normal;font-size: 14.4px;text-indent: 0px;text-align: center;letter-spacing: normal;float: none;direction: ltr;max-width: none;max-height: none;min-width: 0px;min-height: 0px;border: 0px;padding: 0px;margin: 0px;width: 10000em !important\" role=\"presentation\"><span id=\"MathJax-Span-1\" class=\"math\"><span id=\"MathJax-Span-2\" class=\"mrow\"><span id=\"MathJax-Span-3\" class=\"mtable\"><span id=\"MathJax-Span-7\" class=\"mtd\"><span id=\"MathJax-Span-8\" class=\"mrow\"><span id=\"MathJax-Span-9\" class=\"mtext\">BMI<\/span><span id=\"MathJax-Span-10\" class=\"mo\">=<\/span><span id=\"MathJax-Span-11\" class=\"mstyle\"><span id=\"MathJax-Span-12\" class=\"mrow\"><span id=\"MathJax-Span-13\" class=\"mfrac\"><span id=\"MathJax-Span-14\" class=\"mrow\"><span id=\"MathJax-Span-15\" class=\"mtext\">weight\u00a0<\/span><span id=\"MathJax-Span-16\" class=\"mo\">(<\/span><span id=\"MathJax-Span-17\" class=\"mi\">k<\/span><span id=\"MathJax-Span-18\" class=\"mi\">g<\/span><span id=\"MathJax-Span-19\" class=\"mo\">)<\/span><\/span><span id=\"MathJax-Span-20\" class=\"mrow\"><span id=\"MathJax-Span-21\" class=\"mtext\">height\u00a0<\/span><span id=\"MathJax-Span-22\" class=\"mo\">(<\/span><span id=\"MathJax-Span-23\" class=\"msubsup\"><span id=\"MathJax-Span-24\" class=\"mi\">m<\/span><span id=\"MathJax-Span-25\" class=\"mn\">2<\/span><\/span><span id=\"MathJax-Span-26\" class=\"mo\">)<\/span><\/span><\/span><\/span><\/span><\/span><\/span><span id=\"mjx-eqn-9.2.1\" class=\"mtd\"><span id=\"MathJax-Span-5\" class=\"mrow\"><span id=\"MathJax-Span-6\" class=\"mtext\">(9.2.1)<\/span><\/span><\/span><\/span><\/span><\/span><span class=\"MJX_Assistive_MathML MJX_Assistive_MathML_Block\" role=\"presentation\">(9.2.1)BMI=weight\u00a0(kg)height\u00a0(m2)<\/span><\/span><\/div>\r\nThe BMI attempts to quantify the amount of tissue mass (muscle, fat, and bone) in an individual, and then categorize that person as underweight, normal weight, overweight, or obese based on that value. However, there is some debate about where on the BMI scale the dividing lines between categories should be placed.\u00a0Commonly accepted BMI ranges are underweight: under 18.5 kg\/m2, normal weight: 18.5 to 25, overweight: 25 to 30, obese: over 30 (Figure\u00a0<span id=\"MathJax-Element-2-Frame\" class=\"MathJax\" style=\"font-style: normal;font-weight: normal;line-height: normal;font-size: 14.4px;text-indent: 0px;text-align: left;letter-spacing: normal;float: none;direction: ltr;max-width: none;max-height: none;min-width: 0px;min-height: 0px;border: 0px;padding: 0px;margin: 0px\" role=\"presentation\"><span id=\"MathJax-Span-27\" class=\"math\"><span id=\"MathJax-Span-28\" class=\"mrow\"><span id=\"MathJax-Span-29\" class=\"texatom\"><span id=\"MathJax-Span-30\" class=\"mrow\"><span id=\"MathJax-Span-31\" class=\"mn\">9.2.<\/span><span id=\"MathJax-Span-32\" class=\"mn\">1<\/span><\/span><\/span><\/span><\/span><\/span>).\r\n\r\n[caption id=\"\" align=\"aligncenter\" width=\"500\"]<img class=\"internal\" src=\"https:\/\/med.libretexts.org\/@api\/deki\/files\/4112\/Obesity_%2526_BMI.png?revision=2\" alt=\"Obesity_&amp;_BMI.png\" width=\"500\" height=\"385\" \/> Figure\u00a09.2.1:\u00a0Obesity and BMI. Image used with permission (CC BY-SA 4.0;\u00a0BruceBlaus).[\/caption]\r\n\r\n<div class=\"textbox\">\r\n<h3 class=\"boxtitle\">AUTOMATIC BMI CALCULATORS<\/h3>\r\n\r\n<hr \/>\r\n<p id=\"zimmerman_1.0-ch11_s02_s01_s01_p02\" class=\"para\">The National Heart, Lung, and Blood Institute and the CDC have automatic BMI calculators on their websites:<\/p>\r\n\r\n<ul>\r\n \t<li><a href=\"https:\/\/www.nhlbi.nih.gov\/health\/educational\/lose_wt\/BMI\/bmicalc.htm\" target=\"_blank\" rel=\"noopener\">https:\/\/www.nhlbi.nih.gov\/health\/educational\/lose_wt\/BMI\/bmicalc.htm<\/a><\/li>\r\n \t<li id=\"zimmerman_1.0-ch11_s02_s01_s01_p04\" class=\"para\"><a class=\"link external\" href=\"http:\/\/www.cdc.gov\/healthyweight\/assessing\/bmi\/adult_bmi\/english_bmi_calculator\/bmi_calculator.html\" target=\"_blank\" rel=\"external nofollow noopener\">http:\/\/www.cdc.gov\/healthyweight\/assessing\/bmi\/adult_bmi\/english_bmi_calculator\/bmi_calculator.html<\/a><\/li>\r\n<\/ul>\r\n<p id=\"zimmerman_1.0-ch11_s02_s01_s01_p05\">To see how your BMI indicates the weight category you are in, see Table\u00a0<span id=\"MathJax-Element-4-Frame\" class=\"MathJax\" style=\"font-style: normal;font-weight: normal;line-height: normal;font-size: 14.4px;text-indent: 0px;text-align: left;letter-spacing: normal;float: none;direction: ltr;max-width: none;max-height: none;min-width: 0px;min-height: 0px;border: 0px;padding: 0px;margin: 0px\" role=\"presentation\"><span id=\"MathJax-Span-39\" class=\"math\"><span id=\"MathJax-Span-40\" class=\"mrow\"><span id=\"MathJax-Span-41\" class=\"texatom\"><span id=\"MathJax-Span-42\" class=\"mrow\"><span id=\"MathJax-Span-43\" class=\"mn\">9.2.<\/span><span id=\"MathJax-Span-44\" class=\"mn\">1<\/span><\/span><\/span><\/span><\/span><\/span>\u00a0or use a chart of weight and height to figure out your BMI.<\/p>\r\n\r\n<table class=\"mt-responsive-table\" width=\"263\" cellspacing=\"0\" cellpadding=\"0\" align=\"center\"><caption><em><strong>Table\u00a0<span id=\"MathJax-Element-5-Frame\" class=\"MathJax\" style=\"font-style: normal;font-weight: normal;line-height: normal;font-size: 14.4px;text-indent: 0px;text-align: left;letter-spacing: normal;float: none;direction: ltr;max-width: none;max-height: none;min-width: 0px;min-height: 0px;border: 0px;padding: 0px;margin: 0px\" role=\"presentation\"><span id=\"MathJax-Span-45\" class=\"math\"><span id=\"MathJax-Span-46\" class=\"mrow\"><span id=\"MathJax-Span-47\" class=\"texatom\"><span id=\"MathJax-Span-48\" class=\"mrow\"><span id=\"MathJax-Span-49\" class=\"mn\">9.2.<\/span><span id=\"MathJax-Span-50\" class=\"mn\">1<\/span><\/span><\/span><\/span><\/span><\/span>:\u00a0<\/strong>BMI Categories<\/em><\/caption>\r\n<thead>\r\n<tr>\r\n<th class=\"mt-align-center\"><strong>Categories<\/strong><\/th>\r\n<th class=\"mt-align-center\"><strong>BMI<\/strong><\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>Underweight<\/td>\r\n<td>&lt; 18.5<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Normal weight<\/td>\r\n<td>18.5\u201324.9<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Overweight<\/td>\r\n<td>25\u201329.9<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Obese<\/td>\r\n<td>&gt; 30.0<\/td>\r\n<\/tr>\r\n<tr>\r\n<td colspan=\"2\">\r\n<div class=\"copyright mt-align-left\">Source: National Heart, Lung, and Blood Institute. Accessed November 4, 2012.\u00a0<a class=\"link external\" href=\"http:\/\/www.nhlbi.nih.gov\/\" target=\"_blank\" rel=\"external nofollow noopener\">http:\/\/www.nhlbi.nih.gov<\/a>.<\/div><\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\nVery high AND very low BMI's appear to increase a person's risk of dying. If you look at a graph of BMI as it relates to your risk of dying, it has a \"J shaped Curve\" or a \"U shaped Curve\" because being too low\u00a0and\/or too high both raise your risk of mortality (Figure\u00a0<span id=\"MathJax-Element-6-Frame\" class=\"MathJax\" style=\"font-style: normal;font-weight: normal;line-height: normal;font-size: 14.4px;text-indent: 0px;text-align: left;letter-spacing: normal;float: none;direction: ltr;max-width: none;max-height: none;min-width: 0px;min-height: 0px;border: 0px;padding: 0px;margin: 0px\" role=\"presentation\"><span id=\"MathJax-Span-51\" class=\"math\"><span id=\"MathJax-Span-52\" class=\"mrow\"><span id=\"MathJax-Span-53\" class=\"texatom\"><span id=\"MathJax-Span-54\" class=\"mrow\"><span id=\"MathJax-Span-55\" class=\"mn\">9.2.<\/span><span id=\"MathJax-Span-56\" class=\"mn\">2<\/span><\/span><\/span><\/span><\/span><\/span>). Instead, you'd like to be in the middle range of the BMI which is what they use for \"Normal weight\". You will notice that, even though you will be categorized as \"overweight\" at a BMI of 25 and \"obese\" at a BMI of 30, the risk of dying goes up gradually. Like a teacher assigning a letter grade, the decision of exactly where to draw the lines for underweight, normal weight, overweight and obese are somewhat arbitrary.\r\n\r\n[caption id=\"\" align=\"aligncenter\" width=\"350\"]<img class=\"internal\" src=\"https:\/\/med.libretexts.org\/@api\/deki\/files\/4111\/bmi-mort-risk-2d.png?revision=1\" alt=\"bmi-mort-risk-2d.png\" width=\"350\" height=\"349\" \/> <em>Figure\u00a0<\/em><strong>9.2.2<\/strong><em>:\u00a0Mortality risk vs. BMI.<\/em>[\/caption]\r\n\r\n<\/div>\r\n<div id=\"section_2\" class=\"mt-section\">\r\n<h2 id=\"Limitations_of_the_BMI-596\">Limitations of the\u00a0BMI<\/h2>\r\n<p id=\"zimmerman_1.0-ch11_s02_s01_s02_p01\">A BMI is a fairly simple measurement and does not take into account fat mass or fat distribution in the body, both of which are additional predictors of disease risk. Body fat weighs less than muscle mass. Therefore, BMI can sometimes underestimate the amount of body fat in overweight or obese people and overestimate it in more muscular people. For instance, a muscular athlete will have more muscle mass (which is heavier than fat mass) than a couch potato of the same height. Based on their BMIs the muscular athlete would be less \u201cideal\u201d and may be categorized as more overweight or obese than the couch potato; however this is an infrequent problem with BMI calculation. Additionally, an older person with osteoporosis (decreased bone mass) will have a lower BMI than an older person of the same height without osteoporosis, even though the person with osteoporosis may have more fat mass. A BMI is a useful inexpensive tool to categorize people and is highly correlative with disease risk, but other measurements are needed to diagnose obesity and more accurately assess disease risk..<\/p>\r\n\r\n<\/div>\r\n<div id=\"section_3\" class=\"mt-section\">\r\n<h2 id=\"Measuring_Body_Fat_Content-596\">Measuring Body Fat Content<\/h2>\r\n<p id=\"zimmerman_1.0-ch11_s02_s02_s01_p01\">Water, organs, bone tissue, fat, and muscle tissue make up a person\u2019s weight. Having more fat mass may be indicative of disease risk, but fat mass also varies with sex, age, and physical activity level. Females have more fat mass, which is needed for reproduction and, in part, is a consequence of different levels of hormones. The optimal fat content of a female is between 20 and 30 percent of her total weight and for a male is between 12 and 20 percent. Fat mass can be measured in a variety of ways. The simplest and lowest-cost way is the skin-fold test. A health professional uses a caliper to measure the thickness of skin on the back, arm, and other parts of the body and compares it to standards to assess body fatness. It is a noninvasive and fairly accurate method of measuring fat mass, but similar to BMI, is compared to standards of mostly young to middle-aged adults. Other methods of measuring fat mass are more expensive and more technically challenging. They include:<\/p>\r\n\r\n<ul id=\"zimmerman_1.0-ch11_s02_s02_s01_l01\" class=\"itemizedlist block\">\r\n \t<li><strong class=\"emphasis bold\">Underwater weighing.<\/strong>\u00a0This technique requires a chamber full of water big enough for the whole body can fit in. First, a person is weighed outside the chamber and then weighed again while immersed in water. Bone and muscle weigh more than water, but fat does not\u2014therefore a person with a higher muscle and bone mass will weigh more when in water than a person with less bone and muscle mass.<\/li>\r\n \t<li><strong class=\"emphasis bold\">Bioelectric Impedance Analysis (BIA).<\/strong>\u00a0This device is based on the fact that fat slows down the passage of electricity through the body. When a small amount of electricity is passed through the body, the rate at which it travels is used to determine body composition. These devices are also sold for home use and commonly called body composition scales.<\/li>\r\n \t<li><strong class=\"emphasis bold\">Dual-energy x-ray absorptiometry.<\/strong>\u00a0This technique can be used to measure bone density. It also can determine fat content via the same method, which directs two low-dose x-ray beams through the body and determines the amount of the energy absorbed from the beams. The amount of energy absorbed is dependent on the body\u2019s content of bone, lean tissue mass, and fat mass. Using standard mathematical formulas, fat content can be accurately estimated.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<div id=\"section_4\" class=\"mt-section\">\r\n<h2 id=\"Measuring_Fat_Distribution-596\">Measuring Fat Distribution<\/h2>\r\nTotal body-fat mass is one predictor of health; another is how the fat is distributed in the body. You may have heard that fat on the hips is better than fat in the belly\u2014this is true. Fat can be found in different areas in the body and it does not all act the same, meaning it differs physiologically based on location. Fat deposited in the abdominal cavity is called\u00a0<span class=\"margin_term\">visceral fat<\/span>\u00a0and it is a better predictor of disease risk than total fat mass. Visceral fat releases hormones and inflammatory factors that contribute to disease risk. The only tool required for measuring visceral fat is a measuring tape. The measurement (of waist circumference) is taken just above the belly button. Men with a waist circumference greater than 40 inches and women with a waist circumference greater than 35 inches are predicted to face greater health risks.\r\n\r\nThe\u00a0<span class=\"margin_term\">waist-to-hip ratio<\/span>\u00a0is often considered a better measurement than waist circumference alone in predicting disease risk. To calculate your waist-to-hip ratio, use a measuring tape to measure your waist circumference and then measure your hip circumference at its widest part. Next, divide the waist circumference by the hip circumference to arrive at the waist-to-hip ratio. Observational studies have demonstrated that people with \u201capple-shaped\u201d bodies, (who carry more weight around the waist) have greater risks for chronic disease than those with \u201cpear-shaped\u201d bodies, (who carry more weight around the hips). A study published in the November 2005 issue of\u00a0<em class=\"emphasis\">Lancet<\/em>\u00a0with more than twenty-seven thousand participants from fifty-two countries concluded that the waist-to-hip ratio is highly correlated with heart attack risk worldwide and is a better predictor of heart attacks than BMI.<span id=\"zimmerman_1.0-fn11_001\" class=\"footnote\">Yusuf, S. et al. \u201cObesity and the Risk of Myocardial Infarction in 27,000 Participants from 52 Countries: A Case-Control Study.\u201d\u00a0<em class=\"emphasis\">Lancet<\/em>\u00a0366, no. 9497 (2005): 1640\u20139. Accessed October 5, 2011.\u00a0<a class=\"link external\" href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/16271645?dopt=AbstractPlus\" target=\"_blank\" rel=\"external nofollow noopener\">http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/16271645 ?dopt=AbstractPlus<\/a>.<\/span>Abdominal obesity is defined by the World Health Organization (WHO) as having a waist-to-hip ratio above 0.90 for males and above 0.85 for females.\r\n\r\n<\/div>\r\n<div id=\"section_5\" class=\"mt-section\">\r\n<div class=\"textbox key-takeaways\">\r\n<h3>Key Takeaways<\/h3>\r\nMost people who are overweight also have excessive body fat and therefore body weight is an indicator of obesity in much of the population.\u00a0To standardize the \u201cideal\u201d body weight and relate it to health, scientists have devised some computational measurements to better define a healthy ideal weight.\u00a0Body weight in relation to height is called BMI and is correlated with disease risk.\u00a0Total body fat mass is another predictor of disease risk; another is where the fat is distributed.\u00a0Fat deposits in different areas in the body and do not all act the same, meaning it differs physiologically based on location. Visceral fat contributes more to disease risk, for example.\r\n\r\n<\/div>\r\n<\/div>\r\n<div id=\"section_6\" class=\"mt-section\">\r\n<div id=\"zimmerman_1.0-ch12_s04_s05_n03\" class=\"exercises \">\r\n<h3 id=\"section_17\" class=\"mt-section\">Discussion Starters<\/h3>\r\n<ol id=\"zimmerman_1.0-ch11_s02_s02_s02_l02\" class=\"orderedlist\">\r\n \t<li>Read the article, \u201cExercise Keeps Dangerous Visceral Fat Away a Year after Weight Loss, Study Finds,\u201d at\u00a0<a class=\"link external\" href=\"http:\/\/www.sciencedaily.com\/releases\/2009\/10\/091029102740.htm\" target=\"_blank\" rel=\"external nofollow noopener\">http:\/\/www.sciencedaily.com\/releases\/2009\/10\/091029102740.htm<\/a>. Then discuss the importance of exercise in eradicating excessive fat.<\/li>\r\n \t<li>Based on what you learned, why would an individual with a high BMI have a decreased risk of osteoporosis.<\/li>\r\n<\/ol>\r\n<\/div>\r\n<\/div>\r\n<footer class=\"mt-content-footer\"><\/footer><\/div>\r\n<\/section><footer class=\"elm-content-footer\"><\/footer>","rendered":"<section class=\"mt-content-container\">\n<div id=\"s596\" class=\"mt-include\">\n<div id=\"skills\">\n<div class=\"textbox learning-objectives\">\n<h3>Learning Objectives<\/h3>\n<ul>\n<li>Be able to calculate body mass index (BMI)\u00a0given a particular weight and height.<\/li>\n<li>Name the factors that affect body composition and distribution.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p>Although the terms &#8220;overweight&#8221; and &#8220;obese&#8221; are often used interchangeably and considered as gradations of the same thing, they can denote different things. You weigh what you weigh because of your:\u00a0water weight, lean muscle weight, bone weight, and weight from body fat (adipose). &#8220;<span class=\"margin_term\">Overweight&#8221;<\/span>\u00a0refers to having more weight than is typical for a particular height. That weight\u00a0may be the result of water weight, muscle weight, or fat mass. &#8220;<span class=\"margin_term\">Obese&#8221;<\/span>\u00a0refers specifically to having excess body fat. In most cases people who are overweight also have excessive body fat and therefore body weight is an indicator of obesity in much of the population.<\/p>\n<blockquote><p>The \u201cideal\u201d healthy body weight for a particular person is dependent on many things, such as frame size, sex (hormone profile), muscle mass, bone density, age, and height. The perception of the \u201cideal\u201d body weight can be\u00a0additionally dependent on cultural factors and the mainstream societal advertisement of beauty.<\/p><\/blockquote>\n<p>In this author&#8217;s opinion, the concept of &#8220;ideal body weight&#8221; is concerning. I feel that each of us should be eating healthfully (not just saying it but doing it), exercising healthfully\u00a0and then allowing our body weight to go where it wants to go. However, medical doctors, public health officials and others needed to find a simple tool to look at patterns of weight gain in the U.S.A. and elsewhere. The easy tool that was developed is called the Body Mass Index (BMI). BMI is a tool meant to tell an individual if they weight too much, too little or just right. BMI\u00a0uses the information that we already have readily available from every doctor&#8217;s visit: weight and height. The general idea is, if you are very tall and have a low weight you are probably underweight. If you are very short and you weigh a lot you are probably overweight. It is a crude tool but one that can quickly, inexpensively give estimates of overweight and\/or underweight.<\/p>\n<div id=\"section_1\" class=\"mt-section\">\n<h2 id=\"The_Body_Mass_Index_(BMI)-596\">The Body Mass Index (BMI)<\/h2>\n<p><span class=\"margin_term\">Body mass index (BMI)<\/span>\u00a0is calculated using\u00a0<strong>height<\/strong>\u00a0and\u00a0<strong>weight<\/strong>\u00a0measurements and is more predictive of health risk than using weight alone. BMI measurements are used to indicate whether an individual may be underweight (with a BMI less than 18.5), overweight (with a BMI over 25), or obese (with a BMI over 30).\u00a0The BMI is defined as the body mass divided by the square of the body height, and is universally expressed in units of kg\/m<sup>2<\/sup>, resulting from mass in kilograms and height in meters.<\/p>\n<div class=\"MathJax_Display\"><span id=\"MathJax-Element-1-Frame\" class=\"MathJax MathJax_FullWidth\" style=\"font-style: normal;font-weight: normal;line-height: normal;font-size: 14.4px;text-indent: 0px;text-align: center;letter-spacing: normal;float: none;direction: ltr;max-width: none;max-height: none;min-width: 0px;min-height: 0px;border: 0px;padding: 0px;margin: 0px;width: 10000em !important\" role=\"presentation\"><span id=\"MathJax-Span-1\" class=\"math\"><span id=\"MathJax-Span-2\" class=\"mrow\"><span id=\"MathJax-Span-3\" class=\"mtable\"><span id=\"MathJax-Span-7\" class=\"mtd\"><span id=\"MathJax-Span-8\" class=\"mrow\"><span id=\"MathJax-Span-9\" class=\"mtext\">BMI<\/span><span id=\"MathJax-Span-10\" class=\"mo\">=<\/span><span id=\"MathJax-Span-11\" class=\"mstyle\"><span id=\"MathJax-Span-12\" class=\"mrow\"><span id=\"MathJax-Span-13\" class=\"mfrac\"><span id=\"MathJax-Span-14\" class=\"mrow\"><span id=\"MathJax-Span-15\" class=\"mtext\">weight\u00a0<\/span><span id=\"MathJax-Span-16\" class=\"mo\">(<\/span><span id=\"MathJax-Span-17\" class=\"mi\">k<\/span><span id=\"MathJax-Span-18\" class=\"mi\">g<\/span><span id=\"MathJax-Span-19\" class=\"mo\">)<\/span><\/span><span id=\"MathJax-Span-20\" class=\"mrow\"><span id=\"MathJax-Span-21\" class=\"mtext\">height\u00a0<\/span><span id=\"MathJax-Span-22\" class=\"mo\">(<\/span><span id=\"MathJax-Span-23\" class=\"msubsup\"><span id=\"MathJax-Span-24\" class=\"mi\">m<\/span><span id=\"MathJax-Span-25\" class=\"mn\">2<\/span><\/span><span id=\"MathJax-Span-26\" class=\"mo\">)<\/span><\/span><\/span><\/span><\/span><\/span><\/span><span id=\"mjx-eqn-9.2.1\" class=\"mtd\"><span id=\"MathJax-Span-5\" class=\"mrow\"><span id=\"MathJax-Span-6\" class=\"mtext\">(9.2.1)<\/span><\/span><\/span><\/span><\/span><\/span><span class=\"MJX_Assistive_MathML MJX_Assistive_MathML_Block\" role=\"presentation\">(9.2.1)BMI=weight\u00a0(kg)height\u00a0(m2)<\/span><\/span><\/div>\n<p>The BMI attempts to quantify the amount of tissue mass (muscle, fat, and bone) in an individual, and then categorize that person as underweight, normal weight, overweight, or obese based on that value. However, there is some debate about where on the BMI scale the dividing lines between categories should be placed.\u00a0Commonly accepted BMI ranges are underweight: under 18.5 kg\/m2, normal weight: 18.5 to 25, overweight: 25 to 30, obese: over 30 (Figure\u00a0<span id=\"MathJax-Element-2-Frame\" class=\"MathJax\" style=\"font-style: normal;font-weight: normal;line-height: normal;font-size: 14.4px;text-indent: 0px;text-align: left;letter-spacing: normal;float: none;direction: ltr;max-width: none;max-height: none;min-width: 0px;min-height: 0px;border: 0px;padding: 0px;margin: 0px\" role=\"presentation\"><span id=\"MathJax-Span-27\" class=\"math\"><span id=\"MathJax-Span-28\" class=\"mrow\"><span id=\"MathJax-Span-29\" class=\"texatom\"><span id=\"MathJax-Span-30\" class=\"mrow\"><span id=\"MathJax-Span-31\" class=\"mn\">9.2.<\/span><span id=\"MathJax-Span-32\" class=\"mn\">1<\/span><\/span><\/span><\/span><\/span><\/span>).<\/p>\n<div style=\"width: 510px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"internal\" src=\"https:\/\/med.libretexts.org\/@api\/deki\/files\/4112\/Obesity_%2526_BMI.png?revision=2\" alt=\"Obesity_&amp;_BMI.png\" width=\"500\" height=\"385\" \/><\/p>\n<p class=\"wp-caption-text\">Figure\u00a09.2.1:\u00a0Obesity and BMI. Image used with permission (CC BY-SA 4.0;\u00a0BruceBlaus).<\/p>\n<\/div>\n<div class=\"textbox\">\n<h3 class=\"boxtitle\">AUTOMATIC BMI CALCULATORS<\/h3>\n<hr \/>\n<p id=\"zimmerman_1.0-ch11_s02_s01_s01_p02\" class=\"para\">The National Heart, Lung, and Blood Institute and the CDC have automatic BMI calculators on their websites:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.nhlbi.nih.gov\/health\/educational\/lose_wt\/BMI\/bmicalc.htm\" target=\"_blank\" rel=\"noopener\">https:\/\/www.nhlbi.nih.gov\/health\/educational\/lose_wt\/BMI\/bmicalc.htm<\/a><\/li>\n<li id=\"zimmerman_1.0-ch11_s02_s01_s01_p04\" class=\"para\"><a class=\"link external\" href=\"http:\/\/www.cdc.gov\/healthyweight\/assessing\/bmi\/adult_bmi\/english_bmi_calculator\/bmi_calculator.html\" target=\"_blank\" rel=\"external nofollow noopener\">http:\/\/www.cdc.gov\/healthyweight\/assessing\/bmi\/adult_bmi\/english_bmi_calculator\/bmi_calculator.html<\/a><\/li>\n<\/ul>\n<p id=\"zimmerman_1.0-ch11_s02_s01_s01_p05\">To see how your BMI indicates the weight category you are in, see Table\u00a0<span id=\"MathJax-Element-4-Frame\" class=\"MathJax\" style=\"font-style: normal;font-weight: normal;line-height: normal;font-size: 14.4px;text-indent: 0px;text-align: left;letter-spacing: normal;float: none;direction: ltr;max-width: none;max-height: none;min-width: 0px;min-height: 0px;border: 0px;padding: 0px;margin: 0px\" role=\"presentation\"><span id=\"MathJax-Span-39\" class=\"math\"><span id=\"MathJax-Span-40\" class=\"mrow\"><span id=\"MathJax-Span-41\" class=\"texatom\"><span id=\"MathJax-Span-42\" class=\"mrow\"><span id=\"MathJax-Span-43\" class=\"mn\">9.2.<\/span><span id=\"MathJax-Span-44\" class=\"mn\">1<\/span><\/span><\/span><\/span><\/span><\/span>\u00a0or use a chart of weight and height to figure out your BMI.<\/p>\n<table class=\"mt-responsive-table\" cellpadding=\"0\" style=\"width: 263px; border-spacing: 0px; margin: auto;\">\n<caption><em><strong>Table\u00a0<span id=\"MathJax-Element-5-Frame\" class=\"MathJax\" style=\"font-style: normal;font-weight: normal;line-height: normal;font-size: 14.4px;text-indent: 0px;text-align: left;letter-spacing: normal;float: none;direction: ltr;max-width: none;max-height: none;min-width: 0px;min-height: 0px;border: 0px;padding: 0px;margin: 0px\" role=\"presentation\"><span id=\"MathJax-Span-45\" class=\"math\"><span id=\"MathJax-Span-46\" class=\"mrow\"><span id=\"MathJax-Span-47\" class=\"texatom\"><span id=\"MathJax-Span-48\" class=\"mrow\"><span id=\"MathJax-Span-49\" class=\"mn\">9.2.<\/span><span id=\"MathJax-Span-50\" class=\"mn\">1<\/span><\/span><\/span><\/span><\/span><\/span>:\u00a0<\/strong>BMI Categories<\/em><\/caption>\n<thead>\n<tr>\n<th class=\"mt-align-center\"><strong>Categories<\/strong><\/th>\n<th class=\"mt-align-center\"><strong>BMI<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Underweight<\/td>\n<td>&lt; 18.5<\/td>\n<\/tr>\n<tr>\n<td>Normal weight<\/td>\n<td>18.5\u201324.9<\/td>\n<\/tr>\n<tr>\n<td>Overweight<\/td>\n<td>25\u201329.9<\/td>\n<\/tr>\n<tr>\n<td>Obese<\/td>\n<td>&gt; 30.0<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">\n<div class=\"copyright mt-align-left\">Source: National Heart, Lung, and Blood Institute. Accessed November 4, 2012.\u00a0<a class=\"link external\" href=\"http:\/\/www.nhlbi.nih.gov\/\" target=\"_blank\" rel=\"external nofollow noopener\">http:\/\/www.nhlbi.nih.gov<\/a>.<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Very high AND very low BMI&#8217;s appear to increase a person&#8217;s risk of dying. If you look at a graph of BMI as it relates to your risk of dying, it has a &#8220;J shaped Curve&#8221; or a &#8220;U shaped Curve&#8221; because being too low\u00a0and\/or too high both raise your risk of mortality (Figure\u00a0<span id=\"MathJax-Element-6-Frame\" class=\"MathJax\" style=\"font-style: normal;font-weight: normal;line-height: normal;font-size: 14.4px;text-indent: 0px;text-align: left;letter-spacing: normal;float: none;direction: ltr;max-width: none;max-height: none;min-width: 0px;min-height: 0px;border: 0px;padding: 0px;margin: 0px\" role=\"presentation\"><span id=\"MathJax-Span-51\" class=\"math\"><span id=\"MathJax-Span-52\" class=\"mrow\"><span id=\"MathJax-Span-53\" class=\"texatom\"><span id=\"MathJax-Span-54\" class=\"mrow\"><span id=\"MathJax-Span-55\" class=\"mn\">9.2.<\/span><span id=\"MathJax-Span-56\" class=\"mn\">2<\/span><\/span><\/span><\/span><\/span><\/span>). Instead, you&#8217;d like to be in the middle range of the BMI which is what they use for &#8220;Normal weight&#8221;. You will notice that, even though you will be categorized as &#8220;overweight&#8221; at a BMI of 25 and &#8220;obese&#8221; at a BMI of 30, the risk of dying goes up gradually. Like a teacher assigning a letter grade, the decision of exactly where to draw the lines for underweight, normal weight, overweight and obese are somewhat arbitrary.<\/p>\n<div style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"internal\" src=\"https:\/\/med.libretexts.org\/@api\/deki\/files\/4111\/bmi-mort-risk-2d.png?revision=1\" alt=\"bmi-mort-risk-2d.png\" width=\"350\" height=\"349\" \/><\/p>\n<p class=\"wp-caption-text\"><em>Figure\u00a0<\/em><strong>9.2.2<\/strong><em>:\u00a0Mortality risk vs. BMI.<\/em><\/p>\n<\/div>\n<\/div>\n<div id=\"section_2\" class=\"mt-section\">\n<h2 id=\"Limitations_of_the_BMI-596\">Limitations of the\u00a0BMI<\/h2>\n<p id=\"zimmerman_1.0-ch11_s02_s01_s02_p01\">A BMI is a fairly simple measurement and does not take into account fat mass or fat distribution in the body, both of which are additional predictors of disease risk. Body fat weighs less than muscle mass. Therefore, BMI can sometimes underestimate the amount of body fat in overweight or obese people and overestimate it in more muscular people. For instance, a muscular athlete will have more muscle mass (which is heavier than fat mass) than a couch potato of the same height. Based on their BMIs the muscular athlete would be less \u201cideal\u201d and may be categorized as more overweight or obese than the couch potato; however this is an infrequent problem with BMI calculation. Additionally, an older person with osteoporosis (decreased bone mass) will have a lower BMI than an older person of the same height without osteoporosis, even though the person with osteoporosis may have more fat mass. A BMI is a useful inexpensive tool to categorize people and is highly correlative with disease risk, but other measurements are needed to diagnose obesity and more accurately assess disease risk..<\/p>\n<\/div>\n<div id=\"section_3\" class=\"mt-section\">\n<h2 id=\"Measuring_Body_Fat_Content-596\">Measuring Body Fat Content<\/h2>\n<p id=\"zimmerman_1.0-ch11_s02_s02_s01_p01\">Water, organs, bone tissue, fat, and muscle tissue make up a person\u2019s weight. Having more fat mass may be indicative of disease risk, but fat mass also varies with sex, age, and physical activity level. Females have more fat mass, which is needed for reproduction and, in part, is a consequence of different levels of hormones. The optimal fat content of a female is between 20 and 30 percent of her total weight and for a male is between 12 and 20 percent. Fat mass can be measured in a variety of ways. The simplest and lowest-cost way is the skin-fold test. A health professional uses a caliper to measure the thickness of skin on the back, arm, and other parts of the body and compares it to standards to assess body fatness. It is a noninvasive and fairly accurate method of measuring fat mass, but similar to BMI, is compared to standards of mostly young to middle-aged adults. Other methods of measuring fat mass are more expensive and more technically challenging. They include:<\/p>\n<ul id=\"zimmerman_1.0-ch11_s02_s02_s01_l01\" class=\"itemizedlist block\">\n<li><strong class=\"emphasis bold\">Underwater weighing.<\/strong>\u00a0This technique requires a chamber full of water big enough for the whole body can fit in. First, a person is weighed outside the chamber and then weighed again while immersed in water. Bone and muscle weigh more than water, but fat does not\u2014therefore a person with a higher muscle and bone mass will weigh more when in water than a person with less bone and muscle mass.<\/li>\n<li><strong class=\"emphasis bold\">Bioelectric Impedance Analysis (BIA).<\/strong>\u00a0This device is based on the fact that fat slows down the passage of electricity through the body. When a small amount of electricity is passed through the body, the rate at which it travels is used to determine body composition. These devices are also sold for home use and commonly called body composition scales.<\/li>\n<li><strong class=\"emphasis bold\">Dual-energy x-ray absorptiometry.<\/strong>\u00a0This technique can be used to measure bone density. It also can determine fat content via the same method, which directs two low-dose x-ray beams through the body and determines the amount of the energy absorbed from the beams. The amount of energy absorbed is dependent on the body\u2019s content of bone, lean tissue mass, and fat mass. Using standard mathematical formulas, fat content can be accurately estimated.<\/li>\n<\/ul>\n<\/div>\n<div id=\"section_4\" class=\"mt-section\">\n<h2 id=\"Measuring_Fat_Distribution-596\">Measuring Fat Distribution<\/h2>\n<p>Total body-fat mass is one predictor of health; another is how the fat is distributed in the body. You may have heard that fat on the hips is better than fat in the belly\u2014this is true. Fat can be found in different areas in the body and it does not all act the same, meaning it differs physiologically based on location. Fat deposited in the abdominal cavity is called\u00a0<span class=\"margin_term\">visceral fat<\/span>\u00a0and it is a better predictor of disease risk than total fat mass. Visceral fat releases hormones and inflammatory factors that contribute to disease risk. The only tool required for measuring visceral fat is a measuring tape. The measurement (of waist circumference) is taken just above the belly button. Men with a waist circumference greater than 40 inches and women with a waist circumference greater than 35 inches are predicted to face greater health risks.<\/p>\n<p>The\u00a0<span class=\"margin_term\">waist-to-hip ratio<\/span>\u00a0is often considered a better measurement than waist circumference alone in predicting disease risk. To calculate your waist-to-hip ratio, use a measuring tape to measure your waist circumference and then measure your hip circumference at its widest part. Next, divide the waist circumference by the hip circumference to arrive at the waist-to-hip ratio. Observational studies have demonstrated that people with \u201capple-shaped\u201d bodies, (who carry more weight around the waist) have greater risks for chronic disease than those with \u201cpear-shaped\u201d bodies, (who carry more weight around the hips). A study published in the November 2005 issue of\u00a0<em class=\"emphasis\">Lancet<\/em>\u00a0with more than twenty-seven thousand participants from fifty-two countries concluded that the waist-to-hip ratio is highly correlated with heart attack risk worldwide and is a better predictor of heart attacks than BMI.<span id=\"zimmerman_1.0-fn11_001\" class=\"footnote\">Yusuf, S. et al. \u201cObesity and the Risk of Myocardial Infarction in 27,000 Participants from 52 Countries: A Case-Control Study.\u201d\u00a0<em class=\"emphasis\">Lancet<\/em>\u00a0366, no. 9497 (2005): 1640\u20139. Accessed October 5, 2011.\u00a0<a class=\"link external\" href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/16271645?dopt=AbstractPlus\" target=\"_blank\" rel=\"external nofollow noopener\">http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/16271645 ?dopt=AbstractPlus<\/a>.<\/span>Abdominal obesity is defined by the World Health Organization (WHO) as having a waist-to-hip ratio above 0.90 for males and above 0.85 for females.<\/p>\n<\/div>\n<div id=\"section_5\" class=\"mt-section\">\n<div class=\"textbox key-takeaways\">\n<h3>Key Takeaways<\/h3>\n<p>Most people who are overweight also have excessive body fat and therefore body weight is an indicator of obesity in much of the population.\u00a0To standardize the \u201cideal\u201d body weight and relate it to health, scientists have devised some computational measurements to better define a healthy ideal weight.\u00a0Body weight in relation to height is called BMI and is correlated with disease risk.\u00a0Total body fat mass is another predictor of disease risk; another is where the fat is distributed.\u00a0Fat deposits in different areas in the body and do not all act the same, meaning it differs physiologically based on location. Visceral fat contributes more to disease risk, for example.<\/p>\n<\/div>\n<\/div>\n<div id=\"section_6\" class=\"mt-section\">\n<div id=\"zimmerman_1.0-ch12_s04_s05_n03\" class=\"exercises\">\n<h3 id=\"section_17\" class=\"mt-section\">Discussion Starters<\/h3>\n<ol id=\"zimmerman_1.0-ch11_s02_s02_s02_l02\" class=\"orderedlist\">\n<li>Read the article, \u201cExercise Keeps Dangerous Visceral Fat Away a Year after Weight Loss, Study Finds,\u201d at\u00a0<a class=\"link external\" href=\"http:\/\/www.sciencedaily.com\/releases\/2009\/10\/091029102740.htm\" target=\"_blank\" rel=\"external nofollow noopener\">http:\/\/www.sciencedaily.com\/releases\/2009\/10\/091029102740.htm<\/a>. Then discuss the importance of exercise in eradicating excessive fat.<\/li>\n<li>Based on what you learned, why would an individual with a high BMI have a decreased risk of osteoporosis.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n<footer class=\"mt-content-footer\"><\/footer>\n<\/div>\n<\/section>\n<footer class=\"elm-content-footer\"><\/footer>\n\n\t\t\t <section class=\"citations-section\" role=\"contentinfo\">\n\t\t\t <h3>Candela Citations<\/h3>\n\t\t\t\t\t <div>\n\t\t\t\t\t\t <div id=\"citation-list-417\">\n\t\t\t\t\t\t\t <div class=\"licensing\"><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Shared previously<\/div><ul class=\"citation-list\"><li>Indicators of Health: Body Mass Index, Body Fat Content, and Fat Distribution. <strong>Authored by<\/strong>: Medical LibreTexts Contributers. <strong>Provided by<\/strong>: LibreTexts. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/med.libretexts.org\/Courses\/Sacramento_City_College\/SCC%3A_Nutri_300_(Coppola)\/Chapters\/09%3A_Energy_Balance_and_Healthy_Weight\/9.2%3A_Indicators_of_Health%3A_Body_Mass_Index%2C_Body_Fat_Content%2C_and_Fat_Distribution\">https:\/\/med.libretexts.org\/Courses\/Sacramento_City_College\/SCC%3A_Nutri_300_(Coppola)\/Chapters\/09%3A_Energy_Balance_and_Healthy_Weight\/9.2%3A_Indicators_of_Health%3A_Body_Mass_Index%2C_Body_Fat_Content%2C_and_Fat_Distribution<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/\">CC BY-NC-SA: Attribution-NonCommercial-ShareAlike<\/a><\/em><\/li><\/ul><\/div>\n\t\t\t\t\t\t <\/div>\n\t\t\t\t\t <\/div>\n\t\t\t <\/section>","protected":false},"author":44985,"menu_order":7,"template":"","meta":{"_candela_citation":"[{\"type\":\"cc\",\"description\":\"Indicators of Health: Body Mass Index, Body Fat Content, and Fat Distribution\",\"author\":\"Medical LibreTexts Contributers\",\"organization\":\"LibreTexts\",\"url\":\"https:\/\/med.libretexts.org\/Courses\/Sacramento_City_College\/SCC%3A_Nutri_300_(Coppola)\/Chapters\/09%3A_Energy_Balance_and_Healthy_Weight\/9.2%3A_Indicators_of_Health%3A_Body_Mass_Index%2C_Body_Fat_Content%2C_and_Fat_Distribution\",\"project\":\"\",\"license\":\"cc-by-nc-sa\",\"license_terms\":\"\"}]","CANDELA_OUTCOMES_GUID":"","pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-417","chapter","type-chapter","status-publish","hentry"],"part":412,"_links":{"self":[{"href":"https:\/\/courses.lumenlearning.com\/suny-mcc-ltnutrition\/wp-json\/pressbooks\/v2\/chapters\/417","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/courses.lumenlearning.com\/suny-mcc-ltnutrition\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/courses.lumenlearning.com\/suny-mcc-ltnutrition\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/suny-mcc-ltnutrition\/wp-json\/wp\/v2\/users\/44985"}],"version-history":[{"count":7,"href":"https:\/\/courses.lumenlearning.com\/suny-mcc-ltnutrition\/wp-json\/pressbooks\/v2\/chapters\/417\/revisions"}],"predecessor-version":[{"id":1171,"href":"https:\/\/courses.lumenlearning.com\/suny-mcc-ltnutrition\/wp-json\/pressbooks\/v2\/chapters\/417\/revisions\/1171"}],"part":[{"href":"https:\/\/courses.lumenlearning.com\/suny-mcc-ltnutrition\/wp-json\/pressbooks\/v2\/parts\/412"}],"metadata":[{"href":"https:\/\/courses.lumenlearning.com\/suny-mcc-ltnutrition\/wp-json\/pressbooks\/v2\/chapters\/417\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/courses.lumenlearning.com\/suny-mcc-ltnutrition\/wp-json\/wp\/v2\/media?parent=417"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/suny-mcc-ltnutrition\/wp-json\/pressbooks\/v2\/chapter-type?post=417"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/suny-mcc-ltnutrition\/wp-json\/wp\/v2\/contributor?post=417"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/suny-mcc-ltnutrition\/wp-json\/wp\/v2\/license?post=417"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}