And just what are the health benefits of yogurt?

First off, let us not forget that yogurt comes from milk. So yogurt eaters will get a dose of animal protein (about 9 grams per 6-ounce serving), plus several other nutrients found in dairy foods, like calcium, vitamin B-2, vitamin B-12, potassium, and magnesium.

But one of the words we're hearing more and more of regarding yogurt is "probiotics." Probiotics are "friendly bacteria" that are naturally present in the digestive system. Live strains of these "good bacteria" are also found in many yogurt products. While more research needs to be done, there's some evidence that some strains of probiotics can help boost the immune system and promote a healthy digestive tract.

WebMd