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Immune-Boosting Foods: What Works?

November 27, 2017

Q Which foods or nutrients can help strengthen my immune system this winter and make me more resistant to whatever bugs are going around?

 A It’s as inevitable as the return of the pumpkin-spice latte. As the weather turns cooler, stories on “immune-boosting foods” start popping up in magazines and on the internet. Unfortunately, the evidence that specific foods can lower your susceptibility to infection and strengthen your immune system is a lot flimsier than these articles might lead you to believe.


If you’d like to hedge your bets, here’s my short list of foods (plus one supplement) that might help and can’t hurt:


1. Yogurt or Kefir

 Some studies have suggested that regular consumption of probiotic foods may reduce the risk of infection in older adults and improve the response to flu vaccination. Probiotic foods include things like probiotic yogurt, kefir, fresh sauerkraut and pickles, Korean kimchi, or the fermented beverage called kombucha. Although some of these foods may be a little unfamiliar, you shouldn’t have to look further than your local grocery store to find them. Probiotic foods are enjoying a huge wave of popularity these days.


2. Colorful Fruits and Vegetables