By the turn of the 20th century, rickets, the vitamin D deficiency disease, was rampant, thanks to city life with the shade of buildings and coal soot in the air. The dairy industry jumped at the opportunity to fortify milk with vitamin D, and so did the beer industry. According to one print ad: “Beer is good for
Source: Is the Risk of Skin Cancer From Sun Exposure Overblown? | NutritionFacts.org