AskMen Notifications You have no notifications Best Vitamin D Supplements Shares The AskMen editorial team thoroughly researches & reviews the best gear, services and staples for life. AskMen may get paid if you click a link in this article and buy a product or service. Product photos from retailer sites. Vitamin D aka the “sunshine vitamin” holds a special place in the vitamin world. While you can get your daily dose of vitamin D through diet – fatty fish, egg yolks, and fortified milk are all common options – this is the only “vitamin” that your body can produce on its own through exposure to the sun. (This fun fact, among others, also makes it not technically a vitamin at all, but nevertheless, it is considered to be one of the four fat-soluble vitamins.)