{"id":1077,"date":"2017-10-27T16:55:57","date_gmt":"2017-10-27T16:55:57","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/suny-nutrition\/?post_type=chapter&p=1077"},"modified":"2017-11-14T17:58:24","modified_gmt":"2017-11-14T17:58:24","slug":"13-4-potassium","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/chapter\/13-4-potassium\/","title":{"raw":"13.4 Potassium","rendered":"13.4 Potassium"},"content":{"raw":"
\r\n\r\nPotassium is the major intracellular cation. Good sources of potassium include beans, potatoes (with skin), milk products, orange juice, tomato juice, and bananas1,2<\/sup>. Potassium, like sodium and chloride, is well absorbed. Greater than 85% of consumed potassium is absorbed. Potassium is primarily excreted in urine (~90%)3<\/sup>.\r\n\r\nPotassium is important for:\r\n\r\n1. Fluid Balance\r\n\r\n2. Nerve transmission and muscle contraction\r\n\r\nIncreased potassium intake results in decreased calcium excretion. This is the opposite effect of increased sodium intake, which increases calcium excretion1<\/sup>.\r\n\r\nPotassium deficiency is rare but can be fatal. Symptoms include:\r\n\r\nWeakness\r\nFatigue\r\nConstipation\r\nIrregular heartbeat (can be fatal)\r\n\r\nDeficiency can occur in individuals that are on diuretics, drugs that increase urine production, and individuals with eating disorders1<\/sup>.\r\n\r\nToxicity is also extremely rare, only occurring if there is a problem with kidney function. Symptoms of toxicity are irregular heartbeat and even cardiac arrest1<\/sup>.\r\n\r\nReferences & Links<\/b>\r\n\r\n1. Byrd-Bredbenner C, Moe G, Beshgetoor D, Berning J. (2009) Wardlaw's perspectives in nutrition. New York, NY: McGraw-Hill.\r\n\r\n2. Whitney E, Rolfes SR. (2011) Understanding nutrition. Belmont, CA: Wadsworth Cengage Learning.\r\n\r\n3. Gropper SS, Smith JL, Groff JL. (2008) Advanced nutrition and human metabolism. Belmont, CA: Wadsworth Publishing.\r\n\r\n<\/div>","rendered":"
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Potassium is the major intracellular cation. Good sources of potassium include beans, potatoes (with skin), milk products, orange juice, tomato juice, and bananas1,2<\/sup>. Potassium, like sodium and chloride, is well absorbed. Greater than 85% of consumed potassium is absorbed. Potassium is primarily excreted in urine (~90%)3<\/sup>.<\/p>\n

Potassium is important for:<\/p>\n

1. Fluid Balance<\/p>\n

2. Nerve transmission and muscle contraction<\/p>\n

Increased potassium intake results in decreased calcium excretion. This is the opposite effect of increased sodium intake, which increases calcium excretion1<\/sup>.<\/p>\n

Potassium deficiency is rare but can be fatal. Symptoms include:<\/p>\n

Weakness
\nFatigue
\nConstipation
\nIrregular heartbeat (can be fatal)<\/p>\n

Deficiency can occur in individuals that are on diuretics, drugs that increase urine production, and individuals with eating disorders1<\/sup>.<\/p>\n

Toxicity is also extremely rare, only occurring if there is a problem with kidney function. Symptoms of toxicity are irregular heartbeat and even cardiac arrest1<\/sup>.<\/p>\n

References & Links<\/b><\/p>\n

1. Byrd-Bredbenner C, Moe G, Beshgetoor D, Berning J. (2009) Wardlaw’s perspectives in nutrition. New York, NY: McGraw-Hill.<\/p>\n

2. Whitney E, Rolfes SR. (2011) Understanding nutrition. Belmont, CA: Wadsworth Cengage Learning.<\/p>\n

3. Gropper SS, Smith JL, Groff JL. (2008) Advanced nutrition and human metabolism. Belmont, CA: Wadsworth Publishing.<\/p>\n<\/div>\n\n\t\t\t

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Candela Citations<\/h3>\n\t\t\t\t\t
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