Low carb diets can have either a positive or a negative effect on insulin sensitivity. In general a very low carb ketogenic type diet dramatically hinders insulin sensitivity and leads to rebound hyperinsulinemia when one goes back to eating carbs. This does give credence to the cyclical ketogenic diet or Natural Hormonal Enhancement type of diet where one alternates periods of low carbs with a day or 2 of periodic carb-ups as the carb up period prevents this and prevents thyroid decline. A carb intake of 100-150 quality carb grams per day would, for most people, probably improve the insulin sensitivity of more than it hinders although this is just a guess. However, it's also variable. In my own case I went through a 2 month period where i averaged 100-150 grams of carbs per day and this intake had a negative effect on adrenal, thyroid, and insulin sensitivity functions as measured by blood tests. But I'm also an athlete and probably handle carbs and thus need more of them than most. For people who've been on ketogenic or low carb diets for very long periods of time the recommendations I gave earlier work well for coming off. _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com