"Besides essential vitamins and minerals, there might be something else in milk that's not good for you. Over the years, many dairy farms have reported PFA contamination in their water or soil and subsequently in their cows and the milk that the cows produce.

"https://www.kcra.com/article/consumer-reports-forever-chemicals-found-in-some-milk/61534180#:~:text=practically%20any%20fridge.-,Besides%20essential%20vitamins%20and%20minerals%2C%20there%20might%20be%20something%20else,milk%20that%20the%20cows%20produce.