Concept
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Food Requirements and Essential Nutrients
A balanced diet
For humans, a balanced diet includes fruits, vegetables, grains, and protein. Each of these food sources provides different nutrients the body cannot make for itself. These include vitamins, omega 3 fatty acids, and some amino acids.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Nutrition and Energy Production. October 17, 2013."
http://cnx.org/content/m44740/latest/Figure_34_02_01.jpg
OpenStax CNX
CC BY 3.0.