Question: what is plain yogurt good for?
Answer: It's Rich in Important Nutrients. Yogurt contains some of nearly every nutrient that your body needs. ... 
It's High in Protein. ... 
Some Varieties May Benefit Digestive Health. ... 
It May Strengthen Your Immune System. ... 
It May Protect Against Osteoporosis. ... 
It May Benefit Heart Health. ... 
It May Promote Weight Management.