A small study of body fat loss found cutting dietary fat lead to significantly more loss than cutting carbohydrates. All participants were fed a 5-day energy-balanced diet, then randomized to the two dietary groups for 6 days. Following a washout period, each group was crossed over to the other diet for 6 days. The low fat diet resulted in 89 g/day fat loss vs. 53 g/day in the reduced-carb diet. The investigators noted these differences might diminish over time.
PositiveTip: Cutting fat calories may significantly help in weight loss.