>Scientists believe the difference originated as a mutation that occurred between 5,000 and 10,000 years ago—as cattle were being taken north into Europe
>While African and Asian cattle continue to produce only A2 beta-casein, the A1 version of the protein is common among cattle in the western world.
Confirmed for fake and ghey 🐴 🐮 ⚔️ 🧀
(and now that there's financial incentives, further research into the compound will most likely be compromised)