Diet vs. Exercise Scientists at Baylor College of Medicine, Houston, and University of Texas, Galveston, conducted a research study on 127 men and women who were at least 30.8 pounds. They were assigned randomly to experimental design groups to examine the effects of diet only, exercise only, and a combination of diet and exercise. The two-year study results suggest that dieting produces weight loss followed by regain after treatment ends, whereas exercise alone produces smaller weight losses but better maintenance. Why? Gale B. Carey, a nutritional biochemist at the University of New Hampshire, demonstrated that exercise training makes fat cells more sensitive to hormones that tell them …