# The Infant Formula and Follow–on Formula Regulations 1995, Schedule 6: AMINO ACID COMPOSITION OF CASEIN AND BREAST MILK PROTEIN


The amino acid composition of casein and breast milk protein (g/100 g of protein):
Casein
Breast milk
Arginine
3.7
3.8
Cystine
0.3
1.3
Histidine
2.9
2.5
Isoleucine
5.4
4.0
Leucine
9.5
8.5
Lysine
8.1
6.7
Methionine
2.8
1.6
Phenylalanine
5.2
3.4
Threonine
4.7
4.4
Tryptophan
1.6
1.7
Tyrosine
5.8
3.2
Valine
6.7
4.5

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Source: https://www.legislation.gov.uk/uksi/1995/77/schedule/6 (the official version)
Page: https://openlegislation.uk/infant-formula-and-followon-formula-regulations-1995/schedule-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.