I had the privilege of hearing Dr. Eric Westman speak last weekend on the benefits of low-carb diets. The concept that the human bloodstream contains only one teaspoon (5 grams) of sugar in the fasting state provides a powerful visual for how hard the body has to work to return to that state after eating carbohydrate and also how easy it is for the body to store the excess sugar as fat. Dr. Westman is the author of The New Atkins for a New You

http://www.youtube.com/watch?v=yVsA5Fk-_Ig