In a study of " Effect of soy drink replacement in a weight reducing diet on anthropometric values and blood pressure among overweight and obese female youths." by Azadbakht L, Nurbakhsh S.
posted in US National Library of Medicine National Institutes of Health, researchers found that
The mean age of the patients was 22±2 years. Mean of BMI was 28.1±0.5. Weight and waist circumference did not changed significantly after the soy drink period compared to the cow's milk period. Systolic blood pressure reduced significantly following the soy drink period (mean percent change in soy drink period: -4.0±0.9 vs -1.7±0.5 in the cow's milk period; p<0.05). Diastolic blood pressure also reduced in the soy drink period (-0.4±0.1 vs 0.4±0.1; p<0.05) and concluded that soy drink replacement could reduce both systolic and diastolic blood pressure among overweight and obese female youths. However, this replacement had no significant results on weight and waist circumference.