[quote]Dr. Pangloss wrote:
Lightheadedness on a low carb diet can be caused by lack of sodium.
“All carbohydrate resticted diets are natriutretic - they make kidneys dump sodium…With severe sodium restriction (like 1.3 grams a day combined with the natriuretic effects of carbohydrate restriction) the body responds first by mobilizing any excess extracellular flid and then by contracting its circulating volume. It is this contracted circulating volume that causes dizziness, headache, and ease of fatigue.”
“At some point when confronted with this low sodium intake plus carb restriction, most people’s defense mechanisms can’t maintain normal mineral balances…so kidney cells excrete potassium in order to conserve sodium. However, unless there is copious Potassium coming in from the diet, this excess urinary porassium comes from teh body’s potassim pool inside cells. Two things then happen. First, nerve and muscle cells don’t work well, leading to cardiac dysrhythmisas 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”
The Art and Science of Low Carb Living, Volek and Phinney
Personally, I’ve been eating a high fat diet for 15 months (less than 60 cals of carbs per day) and when I find myself dragging ass or lightheaded, I heat up a mug of chicken broth in the microwave. For me, it never fails to revive me. Because on a high fat diet you’re not eating processed foods, you need to be much more conscious about your salt intake. I shoot for 5 grams per day. Keep in mind that 5 grams of salt is only 2 grams of sodium.
<-------------- Not an MD[/quote]
Man this is some awesome information. thanks alot for the heads up.
Edit: one more question if you don’t mind, Is it recommended to have one electrolytes sachet every day when running on a low carb diet?