[chrisco255]

Is vitamin D fat soluble? If so, pretty sure it needs to be consumed with fat. That's partly why it's common in milk.

[Jtsummers]

It is fat soluble, but it doesn't need to be consumed with fat. It's believed that that will help improve uptake, though. (I don't, I take it in the mornings long before my first meal and that seems to be effective for me based on my test results.)

[chrisco255]

https://www.jandonline.org/article/S2212-2672%2814%2901468-3...

"The mean peak (12-hour) plasma vitamin D-3 level after the dose was 32% (95% CI 11% to 52%) greater in subjects consuming fat-containing compared with fat-free meals (P=0.003)."

[nanidin]

It's common in milk because it helps with calcium absorption.

[Godel_unicode]

This is correct:

https://www.bones.nih.gov/health-info/bone/bone-health/nutri....