Buy Living Oysters What Are Oysters/mussels Good For, Nutritional Wise, And Where Can I Buy Them Fresh?

What are oysters/mussels good for, nutritional wise, and where can I buy them fresh? - buy living oysters

I love the mussels and oysters, for any reason. (Although I feel very bad. = /)

I wonder what nutritional value they have and where can I buy ... free (or at least some of the new bearing in mind that actually live on the coast.). I live in Kentucky, and I'm always ready to eat mussels from Olive Garden, but I would be able to cook for me without the high prices to eat constantly to Olive Garden.