Health and Fitness NIH Study Finds Cutting Dietary Fat Reduces Body Fat More Than Cutting Carbs by Gary Kopycinski on August 13, 2015 Gary Kopycinski Author More in Health and Fitness: On Hantavirus, Park Forest Officials Urge Caution May 18, 2026 Rep. Kelly Condemns FDA Approval of Flavored E-Cigarettes May 6, 2026 Park Forest Aligns With Illinois Guidance on Childhood Vaccines Amid Federal Changes January 11, 2026 Carbs vs Fat in the Diet â Kevin Hall, NIH. Credit: NIH Intramural Research Program