Some store fluorescent bulbs produce enough UV, 24/7, to make printed boxes fade away, and turn plastics brittle and yellow. It's not as strong as full sunlight, but it's still there nonetheless.

Even visible wavelengths, especially from fluorescent/LED lighting, can skunk beer. So it's not impossible that this could happen to milk, for whatever that's worth.

Milk is a sacred part of Dutch diet to the point that vegans had to find ways to create plant based milk.