Or at least as sexy as you can get for a vitamin.  Of all the vitamins out there, vitamin D has the most PROVEN benefit for allergies & asthma.  Remember the cod liver oil?  Of course you don’t….you’re not that old! Curr Opin Allergy Clin Immunol. 2012;12(1):13-17. © 2012 The importance of vitamin D as an essential nutrient is…