Effect of consuming salad and yogurt as preload on body weight management and cardiovascular risk factors: a randomized clinical trial.

摘要

Few investigations have reported the reductive effect of preload consumption on energy intake. The objective of this study was to compare the effects of consuming a mix of low glycaemic index foods, such as vegetable salads, yoghurt and water, before or with a meal, on anthropometric measures and cardiovascular disease (CVD) risks. In this randomised controlled clinical trial, 25 men and 35 women were recruited to consume similar amounts of macronutrients within a hypocaloric diet for 3 months. Although subjects in the preload group consumed preload 15 min before the main meal, subjects in the control group consumed them with meal. Results showed that body wt., waist circumference, triglycerides, total cholesterol and systolic blood pressure decreased more in the preload group (-7.8 +or- 0.5%, -2.7 +or- 0.2%, -5.7 +or- 1.1%, -3.1 +or- 0.53% and -4.4 +or- 0.4%, respectively; p < 0.05 for all) compared to the control group. Fasting blood sugar and low density lipoprotein-cholesterol decreased significantly only in the preload group. Consuming vegetable salad, yoghurt and water as preload led to greater changes in anthropometric measures and CVD risks.