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Table 2 Amino acid profile (grams of anhydrous amino acid per 100 g of protein) for keratin (Kerapro) and casein proteins

From: The effect of chronic soluble keratin supplementation in physically active individuals on body composition, blood parameters and cycling performance

 

Kerapro

Casein

Alanine

4.2

2.9

Arginine

7.0

3.5

Aspartic Acid

7.6

7

Cysteinea

6.5

0.7

Glutamic Acid

11.8

23.2

Glycine

6.3

1.7

Histidine

0.5

2.6

Isoleucine

5.3

4.1

Leucine

8.3

9.2

Lysine

1.2

7.5

Methionine

0.4

2.8

Phenylalanine

4.6

4.9

Proline

10.0

10.7

Serine

10.6

5.6

Threonine

4.9

4.2

Tyrosine

2.1

5.4

Valine

8.8

5.3

  1. aprimarily as cysteic acid