What Should I Eat?
The answer to the question "What should I eat?" is actually pretty simple. But you wouldn't know that from news reports on diet and nutrition studies, whose sole purpose seems to be to confuse people on a daily basis.

Healthy Eating: Ten Nutrition Tips for Eating Right
1. Choose good carbs, not no carbs. Whole grains are your best bet.
2. Pay attention to the protein package. Fish, poultry, nuts, and beans are the best choices.
3. Choose foods with healthy fats, limit foods high in saturated fat, and avoid foods with trans fat. Plant oils, nuts, and fish are the healthiest sources.
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More here: http://www.hsph.harvard.edu/nutritionsource/what-should-you-eat/