Low-Fat Flavored Yogurt
Yogurt has a long-standing reputation as a healthy food. Studies show that plain yogurt may help with weight loss and improve body composition, in part by increasing levels of the fullness hormones GLP-1 and PYY (11).
However, low-fat, sugar-sweetened yogurt contains too much sugar to qualify as a nutritious choice.
In fact, many types of low-fat and nonfat yogurt are as high in sugar as desserts.
For example, 8 ounces (240 grams) of fruit-flavored, nonfat yogurt contains 47 grams of sugar, which is nearly 12 teaspoons. In comparison, an equivalent serving of chocolate pudding has 38 grams of sugar (12, 13).
Nonfat and low-fat yogurts also contain minimal conjugated linoleic acid (CLA), a compound found in dairy fat that may cause fat loss (14, 15).
Bottom Line: Plain yogurt made from whole milk is healthy, but sweetened low-fat yogurt can be as high in sugar as desserts.