The Nine Essential Amino Acids

Lysine- found in all proteins (wheat, rice, maize, meat, etc)
Histidine- found in animal proteins
Isoleucine-most dietary proteins
Leucine- found in most common proteins
Methionine- is found in all meats
Phenylalanine- found in many foods, especially meat and dairy
Threonine- found in all proteins
Tryptophan- found in protein-rich foods
Valine- found in all proteins