Bowe recommends swapping your cow milk for one of the almond variety. It's dairy-free and low on the glycemic index. "Low glycemic index foods stop that hormonal cascade from triggering breakouts by stabilizing your blood sugar," she explains. Almond milk is also high in protein, which helps keep your skin, hair and nails healthy and strong. If you have a nut allergy, Engelman recommends coconut milk, which her patients have had great success with.
As for your whey protein? Try pea protein or egg white protein instead, advises Bowe. Look for protein bars that are made without whey, like Rx Bars -- they're made with whole foods, and the protein comes from egg whites and nuts.