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Amino Acids
Essential and Nonessential Amino Acids
| Amino Acid | Essential/Nonessential |
|---|---|
| Histidine | essential |
| Alanine | nonessential |
| Isoleucine | essential |
| Arginine | nonessential |
| Leucine | essential |
| Asparagines | nonessential |
| Lysine | essential |
| Aspartic acid | nonessential |
| Methionine | essential |
| Cysteine | nonessential |
| Phenylalanine | essential |
| Glutamic acid | nonessential |
| Threonine | essential |
| Glutamine | nonessential |
| Tryptophan | essential |
| Glycine | nonessential |
| Valine | essential |
| Proline | nonessential |
| Serine | nonessential |
| Tyrosine | nonessential |
| The human body requires how many different amino acids? | 20: 9 esssential 11 nonessential |