Tue, Aug-28-12, 20:07
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Experimenter
Posts: 25,863
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Plan: DDF
Stats: 202/185.4/179
BF:
Progress: 72%
Location: San Diego, CA
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Quote from "The Art and Science of Low Carb living"
Quote:
In contrast, Dr. Hoffer's subjects were given 5 grams of sodium per day, and there was: a) no difference in water weight loss between his two diet groups, and b) his low carb subjects had no headache, no dizziness, and their endurance performance (assessed in a separate concurrent study) was as good or better than the subjects given the mixed diet.
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Quote:
...At some point, when confronted with this low sodium intake plus carbohydrate restriction, most people's defense mechanisms can't maintain normal mineral balances. So the body's next level of defense is for the adrenal gland to secrete the hormone aldosterone, which makes kidney tubular cells excrete potassium in order to conserve sodium. That is, the body wastes some of its intracellular potassium in order to cling to whatever sodium it can. However unless there is copious potassium coming in from the diet, this excess urinary potassium comes from the body's potassium pool inside cells. Two things then happen. First, nerve and muscle cells don't work well, leading to cardiac dysrhythmias and muscle cramps. Second, because potassium is an obligate component of lean tissue, the body starts losing muscle even if there's plenty of protein in the diet.
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