Non-fat and low-fat dairy, due to emulsifiers, can spike insulin more than full-fat dairy and may worsen acne.

“nonfat and low-fat Dairy has emulsifiers this actually based on work I believe some of which was done at Stanford that can Spike insulin more than full fat Dairy so some people in an attempt to reduce the amount of acne they're getting will move from high fat dairy or full fat I should say to non-fat milk or non-fat dairy or low fat Dairy and their acne will actually get worse and that could be because of the insulin Spike associated with some of the Ulsa fires in that non-fat and low-fat Dairy”