Sun worshippers have a reason to rejoice over a new means of protection from the sun’s damaging rays. A recent study confirms the benefits of ingesting vitamin B3 to protect against ultraviolet radiation. The phase 3 study, published in the New England Journal of Medicine, examined participants in a double-blind, randomized, controlled trial who had at least two nonmelanoma skin cancers, such as basal-cell carcinoma or squamous-cell carcinoma, in the last five years. Compared with those in …