Eating yogurt in place of other unhealthy snacks can help you lose weight and build muscle. Keep in mind though that all yogurts are not created equal. A serving of Greek yogurt can contain up to 20 grams of protein. Some less healthy yogurts can contain less than 8 grams of protein per 6 ounce serving. I would look for yogurts with 10 grams or more of protein and 20 grams or less of sugar. The calcium in yogurt can also signals your fat cells to produce less cortisol, making it easier for you to lose weight. Another benefit is yogurt often contains good bacteria that helps your digestive tract stave off intestinal infections and strengthen your immune system. For some of the more ambitious, you may want to make your own healthy yogurt. There are all sorts of recipes available depending on you personal tastes.