chez les femmes
Higher protein diet for weight management in young overweight women: a 12-month randomized controlled trial
H. J. Griffin Diabetes, Obesity and Metabolism Volume 15, Issue 6, pages 572–575, June 2013
Clinical research on weight management in young women is limited. This randomized controlled trial compared the efficacy of two iso-energetically restricted (5600 kJ) diets [higher protein (HP): 32% protein, 41% carbohydrate, 25% fat or higher carbohydrate (HC): 20, 58, 21%, respectively] in 71 (HP: n = 36; HC: n = 35) young healthy women (18–25 years; body mass index ≥ 27.5 kg/m2) for weight (kg; percent weight loss), body composition, metabolic and iron changes assessed at baseline, 6 and 12 months. Data: mean (95% CI). In HP completers at 6 months, percent weight loss was higher [HP: 9.3 (5.6–13.1); HC: 5.1 (2.3–7.9)%; p = 0.06]; although, this did not reach statistical significance. Absolute weight [HP: 8.9 (5.3–12.5); HC: 4.6 (2.2–7.0) kg; p = 0.034] and fat loss [HP: 8.0 (4.4–11.5); HC: 3.4 (1.3–5.6) kg; p = 0.022] were significantly greater. No significant between-diet differences were observed at 12 months. Biochemistry remained within normal ranges with HP showing superior preservation of ferritin at 6 months [HP: 53 (40–66); HC: 46 (30–61) µg/l; p = 0.029]. Both diets supported clinically meaningful weight loss with HP tending to be more effective in the medium-term.