Approximate Essential Amino Acid Profile of Various Protein Sources
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ESSENTIAL AMINO ACID
|
MILK PROTEIN ISOLATE
|
WHEY PROTEIN ISOLATE
|
WHEY PROTEIN HYDROL.
|
CASEIN
|
SOY PROTEIN ISOLATE
|
EGG PROTEIN
|
Isoleucine
|
4.4
|
6.1
|
5.5
|
4.7
|
4.9
|
5.7
|
Leucine
|
10.3
|
12.2
|
14.2
|
8.9
|
8.2
|
8.4
|
Lysine
|
8.1
|
10.2
|
10.2
|
7.6
|
6.3
|
6.8
|
Methionine
|
3.3
|
3.3
|
2.4
|
3.0
|
1.3
|
3.4
|
Phenylalanine
|
5.0
|
3.0
|
3.8
|
5.1
|
5.2
|
5.8
|
Threonine
|
4.5
|
6.8
|
5.5
|
4.4
|
3.8
|
4.6
|
Tryptophan
|
1.4
|
1.8
|
2.3
|
1.2
|
1.3
|
1.2
|
Valine
|
5.7
|
5.9
|
5.9
|
5.9
|
5.0
|
6.4
|
Total BCAAs
|
20.4
|
24.2
|
25.6
|
19.5
|
18.1
|
20.4
|
Total EAAs
|
42.7
|
49.2
|
49.8
|
40.7
|
36.0
|
42.3
|
Approximate concentration of essential and branched chain amino acids (EAA and BCAA, respectively) present within various forms of commercially available protein (g/100 g). Adapted from [27]. Casein is the average of reported values for Calcium Caseinate, Sodium Caseinate, and Potassium Caseinate; Whey Protein Isolate is the average of reported values for Ion-Exchange and Cross-Flow Microfiltrated Whey Protein Isolates. Hydrol. is hydrolysate.
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Effect of protein/essential amino acids and resistance training on skeletal muscle hypertrophy: A case for whey protein Juha J Hulmi, Christopher M Lockwood and Jeffrey R Stout | Nutrition & Metabolism 2010, 7:51 doi:10.1186/1743-7075-7-51
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