The 9 Essential Amino Acids: phenylalanine, valine, threonine, tryptophan, methionine, leucine, isoleucine, lysine, and histidine.

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Phenylalanine can be found in almost all foods with protein, and the artificial sweetener aspartame.

 

The best foods to find valine in are poultry, beef, lamb, veal/game etc., shellfish and vegetables.

 

Threonine can be found in beef, pork, lamb, and shellfish most readily.

 

Tryptophan is most common in poultry, pork, lamb and shellfish.

 

Methionine is found in highest quantities in shellfish, poultry, and beef.

 

Leucine in shellfish, beef and poultry.

 

Isoleucine, poultry and beef.

 

Lysine, also poultry and beef.

Histidine in beef and pork.