Amino acids are the building blocks of protein. Amino acids are divided into 3 groups. The non-essential amino acids, the essential amino acids and the semi-essential amino acids.
The difference between the 3 groups is that the non-essential amino acids are produced by the body itself, the essential amino acids must be taken in with food, and the semi-essential amino acids are those for which the body’s own production is often not completely sufficient in stressful situations such as training or stress.
Different types of amino acids are also distinguished according to their occurrence:
>> D- << denotes artificial amino acids
>> L- << denotes natural amino acid
>> DL- << denotes amino acids that consist of both forms.
Non-essential amino acids:
Semi-essential amino acids:
Essential amino acids:
Natural sources of amino acids:
Alanine: egg, meat, oats, maize, whey, rice.
Asparagine: egg(protein), potatoes, fruit juices, nuts
Aspartic acid: egg(protein), meat, fruit juices, nuts
Glutamine: Meat, fruit juices, vegetables, potatoes, whey, wheat
Glutamic acid: meat, fruit juices, vegetables, potatoes, whey, wheat
Glycine: gelatine, oats, liver, nuts, beef
Proline: fruit juices, milk, wheat germ
Serine: egg, milk, oats
Isoleucine: Curd cheese, cheese, meat, egg, milk protein, nuts
Leucine: egg, oats, millet, cocoa, maize, whey products
Lysine: egg, meat, potatoes, lentils, milk protein, whey products
Methionine: egg, fish, liver, maize, nuts
Phenylalanine: egg, peanuts, pumpkin, rice
Threonine: egg, peas, whey, beef, wheat germ
Tryptophan: bananas, milk, whey, nuts, cottage cheese, fish
Valine: egg, meat, milk, rice, oatmeal
Histidine: bananas, fish, beef
Arginine: sultanas, milk, nuts, rice, wheat germ
Cysteine: egg, meat, oats, maize
Tyrosine: peas, peanuts, milk