Dear Dietician: Nutrition studies

Dear Dietitian,

Why are nutrition studies so confusing? One day we hear a certain food is good for us; then the next thing we know, the same thing may cause cancer. It's very frustrating!

George D.

Dear George,

Good question. I am always skeptical when I read a new nutrition study. Take fish oil supplements, for example, which contain omega-3-fatty acids. At first, studies showed that omega-3s...