The chart below presents the most important food groups as protein sources, from a worldwide perspective. It also lists their respective performance as source of the commonly limiting amino acids, in milligrams of limiting amino acid per gram of total protein in the food source.[10] The table reiterates the need for a balanced mix of foods to ensure adequate amino acid source.
Reference 1: Lysine, Threonine, Tryptophan and Sulfur-containing amino acids.
Reference 2: Legumes, Cereals and whole grains, Nuts and seeds, Fruits and Animal.
Source: http://en.wikipedia.org/wiki/Protein_(nutrient)
Reference 2: Legumes, Cereals and whole grains, Nuts and seeds, Fruits and Animal.
Source: http://en.wikipedia.org/wiki/Protein_(nutrient)