A Quick Thought On Diet

I sometimes wonder how what we eat can affect how we think. It seems people are willing to accept certain foods (alcohol, sugar, caffeine) have an effect on our thoughts and behavior while we don't question whether a bag of potato chips has an effect as well. I have read recently about the benefits of fish oil in treating depression. While I have known that depression has a biological component, I never thought about how what we eat (or what supplements we take) can affect us in such a direct manner. Maybe eating healthy can have a positive effect on mental health as well as physical health.