Do any vitamin supplements really help prevent a cold? A point by point evaluation of echinacea, garlic, zinc, vitamin D and moreSupercharging our immune systems with supplements seems to have become an obsession, with millions of dollars spent annually on vitamin C alone, according to recent surveys. But which supplements — if any — can help keep us healthy in the winter months?[Bruce Stotesbury/Postmedia News files]
You think they would have shown vitamin C instead.