Effects of three treatment modalities (diet, myoinositol or myoinositol associated with D-chiro-inositol) on clinical and body composition outcomes in women with polycystic ovary syndrome.

OBJECTIVE: To evaluate, in overweight/obese PCOS women, which of three distinct treatment modalities achieved the greatest clinical benefits in terms of clinical and body composition outcomes. PATIENTS AND METHODS: Forty-three polycystic ovary syndrome (PCOS) overweight/obese patients were randomly treated for 6 months with: only diet (Group 1, n = 21); diet and myo-inositol (MI) 4 g + folic acid 400 µg daily (group 2, n = 10); diet in association with MI 1.1 g + D-chiroinositol (DCI) 27.6 mg + folic acid 400 µg daily (group 3, n = 13). Menstrual cycle, Ferriman-Gallwey score, body mass index (BMI), waist circumference, hip circumference, waist-hip ratio (WHR), and body composition by bioimpedentiometry were measured at baseline, 3 and 6 months. RESULTS: Body weight, BMI, waist and hip circumferences decreased significantly in all groups. There was a significant difference between the 3 groups regarding the restoration of menstrual regularity (p = 0.02) that was obtained in all patients only in-group 3. CONCLUSIONS: MI+DCI in association with diet seems to accelerate the weight loss and the fat mass reduction with a slight increase of percent lean mass, and this treatment contributes significantly in restoring the regularity of the menstrual cycle.