Low carbohydrate diets have been associated with effective weight loss. Low carb diets increase HDL-cholesterol and decrease triglyserids more effectively than low fat diet. In this recent cohort study investigators found that plant-based carbohydrate restricted diet was associated with decreased mortality while animal-based carbohydrate diet was associated with increased mortality vs high carbohydrate diet. Fung T et al. Ann Intern Med 2010;153:289-298