Women with the highest blood levels of vitamin D lose nearly twice as much weight -- and lose it twice as quickly -- compared to women who are deficient, according to a study in the American Journal of Clinical Nutrition. When vitamin D latches onto fat cells, it forces them to release their stored fatty acids so they can be burned for energy, the study authors say.
And the best way to get that Vitamin D is to simply step outside! Spend at least 20 minutes outdoors (without sunscreen) each day. And if the weather tends to be dreary in your area -- or you’re the indoorsy type -- take 2,000 IUs of vitamin D in supplement form daily instead.