Ask Marilyn: Does Nutrition Influence Intelligence?

Donna Baughn of Huntsville, Alabama writes:

Marilyn: Do you think nutrition plays a large part in intelligence, and if so, do you eat a special diet?

Marilyn responds:

I don't believe that nutrition plays a role in intelligence (not including malnourishment possibly causing damage). I eat most anything I like, but I do keep the calories low. Also, I generally avoid organic food. It's typically more expensive, often less tasty, and I don't think it's more healthful.