Goat milk naturally contains A2 β-casein, whereas standard cow milk formulas can contain a mixture of A1 β-casein and A2 β-casein. ^1,2

A2 β-casein may be easier to digest and gentler on the tummy than A1 β-casein.³ During digestion A1 β-casein releases a peptide called β-casomorphin-7 which may cause digestive discomfort in sensitive tummies.¹

References:

1. EFSA Scientific Report. 2009; 231:1-107. 2. Oliveira SM, et al. Anim Biotechnol. 2021. https://doi.org/10.1080/10495398.2021.1935982. 3. Ho S, et al. Eur J Clin Nutr. 2014; 68(9):994-1000.