How Do You Get Real Knowledge of Nutrition?

Soil: What areas of life do you most want real knowledge about? Soil starts with nutrition and psychology. Nutrition studies the effects of different foods on our bodies, short term and long term. But it's just so hard to know what's right for a person who is trying to eat healthily in order to live longer. And then there are business issues such as running your own company or dealing with an environmental issue. There's just this sea of conflicting claims, and it's sohard to know what to do.