What do I eat?

In a world where everyone is "health concious", how the hell do I know what to eat?

I run, so I need more carbs, protien, and probably hydration than others.

I read a magazine that said I was supposed to eat:

- Fish from cold water
- Food with a skin (fruits)
- Seeds
- Dairy and milk that comes from animals
- meats and eggs that are free range and/or grass fed

In a world where I'm told to eat no carbs, eat all protien, cut out fruit, eat only fruit, only do organic... I do well if I even remember to have dinner. How do I manage to give my body what it needs to keep up with an active lifestyle?