Long-term effects of a very low-carbohydrate diet and a low-fat diet on mood and cognitive function

An original investigation just published in Archives of Internal Medicine showed similar effects for weight loss and cognitive function, but severely restricting carbohydrates for a year resulted in more "total mood disturbance, anger-hostility, confusion-bewilderment, and depression-dejection". The authors conclude: "Over 1 year, there was a favorable effect of an energy-restricted LF [low fat] diet compared with an isocaloric LC [low carb] diet on mood state and affect in overweight and obese individuals. Both diets had similar effects on working memory and speed of processing." [Isocaloric = same amount of calories.] Lapis Light patients know to eat an abundance of low glycemic carbs of multiple colors.