Weight loss without losing muscle mass in pre-obese and obese subjects induced by a high-soy-protein diet

This 2004 randomized controlled trial evaluated the effects of a high-soy-protein, low-fat diet on body composition in overweight and obese individuals. Ninety participants with a BMI between 27.5 and 35 were assigned to one of three groups: lifestyle education only (LE-G), soy-based diet without exercise (SD-G), or soy-based diet with