Major Food Groups Foods

Protein–Animal versus vegetable protein; sources of complementary proteins (grains-legumes-nuts/seeds), and combinations to create complete proteins: http://www.bodyforlife2.com/incompletprotein.htm

Proteins are made up of a set of building blocks called amino acids. Some amino acids must be obtained from the food we eat. We cannot make them ourselves so we call these essential amino acids – they are an essential part of our diet. Other amino acids, the non-essential ones can be made in our bodies so we don’t need them in the food we eat.

http://www.bbc.co.uk/education/asguru/biology/02biologicalmolecules/01proteins/index.shtml

Vegetable proteins-Here’s a quick guide to what you should eat and a round-up of vegetarian proteins:

http://www.bbc.co.uk/food/vegetarian_and_vegan/vegetarianproteins.shtml