Jacques and Huifen Wang at the Jean Mayer USDA Human Nutrition Research Center on Aging (HNRCA) at Tufts examined data from the Framingham studies to see if there was a connection between yogurt consumption and weight. Their findings suggest yogurt could be helpful, if not for weight loss, then at least for weight maintenance.
3 servings a week
The data, published in the International Journal of Obesity in 2014, showed people who ate more than three servings of yogurt a week gained less weight over the course of a year than those who ate less than one serving.
A meta-analysis by Jacques and Wang of existing research on yogurt and weight, published last year in the American Journal of Clinical Nutrition, also found that yogurt-rich diets were associated with less weight gain over time. The same association was not true for consumption of low-fat or nonfat milk. And comparable consumption of whole milk and cheese was associated with weight gain..