A-2 milk lacks A1 beta-casein; a milk protein linked to digestive distress.
65% of people have trouble digesting regular milk. Lactose usually gets blamed for this widespread milk intolerance, but lactose is only part of the problem. The other is a milk protein called A1 beta-casein.
A1 beta-casein is the biggest problem food nobody’s ever heard of. Studies suggest it causes digestive symptoms like gas, bloating, constipation, and stomach pain.
Science suggests that A2 milk is easier to digest for some people and may be better for long term health.
Pioneer Pastures offers milk and protein shakes that are A2.