PETA’s letter to the UN’s Food and Agriculture Organization calls for World Milk Day to be renamed 'World Bovine Mammary Secretion Day,' insisting on transparency about milk’s origin. The campaign highlights cow welfare, separation of calves, and the date June 1. PETA’s Elisa Allen claims, “Cows don’t make milk because they’re cows, but because they are mothers.”

The animal rights group’s request to rebrand World Milk Day includes citing up to 400,000,000 pus cells per litre and 60% mastitis rates as reasons for change. PETA’s push for the term 'bovine mammary secretion' offers a tongue-in-cheek twist on global dairy celebrations, conjuring images of cows, calves, and confused copywriters.

PETA claims a litre of milk can contain up to 400,000,000 somatic (pus) cells due to infections.