Return to the Mayo Clinic website. In the search box, type the phrase: “Healthy Diet” and follow the search result links provided (e.g., “Healthy diet: Do you follow dietary guidelines?”)

Return to the Mayo Clinic website. In the search box, type the phrase: “Healthy Diet” and follow the search result links provided (e.g., “Healthy diet: Do you follow dietary guidelines?”). There are some excellent focusing suggestions here.
Most really good foods are high in more than 1 category. This gives you flexibility in building your list. For example, salmon is high in both proteins and fats. Which is it higher in? Use it under only 1 heading.
Foods differ in their density of a wide variety of nutrients as compared to just the calories they give you. Which sweet would be better for you: a hard candy or a fig bar?
What is in the food item you have selected? Look at the following: http://ndb.nal.usda.gov/
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