AdvertisementHillary Clinton's Elixir: Can A Hot Pepper A Day Boost Immunity?January 21, 2016Allison AubreyfacebookEmailDemocratic presidential hopeful Hillary Clinton walks past the peppers at the El Rey grocery store in Milwaukee, Wis., during a campaign stop in 2008. Clinton tells NPR that she eats a fresh hot pepper a day to stay healthy on the campaign trail. She may be on to something. (Carolyn Kaster/AP)