TABLE 1.
Amino acid composition of protein supplements1
| WP supplement | CP supplement | |
|---|---|---|
| Alanine | 1.7 | 3.1 |
| Arginine | 0.9 | 2.6 |
| Aspartic acid | 3.8 | 2.0 |
| Cysteine | 1.2 | 0 |
| Glutamic acid | 5.3 | 3 |
| Glycine | 0.5 | 8.0 |
| Histidine | 0.6 | 0.4 |
| Proline | 1.4 | 4.5 |
| Serine | 1.4 | 1.2 |
| Tyrosine | 1.3 | 0.3 |
| Tryptophan | 0.7 | 0 |
| Isoleucine | 1.9 | 0.5 |
| Leucine | 4.3 | 0.9 |
| Lysine | 3.4 | 1.3 |
| Methionine | 0.7 | 0.4 |
| Phenylalanine | 1.1 | 0.7 |
| Threonine | 1.6 | 0.6 |
| Valine | 1.7 | 0.8 |
| ΣEAAs | 15.4 | 5.6 |
| ΣNEAAs | 17.9 | 24.7 |
1Values are grams per serving. CP, collagen peptide; EAA, essential amino acid; NEAA, nonessential amino acid; WP, whey protein; Σ, sum of.