Foods & immunity: What’s the catch?

How to strengthen your immunity during the coronavirus pandemic,” promised the CNN.com headline in March. ABC’s “Good Morning America” told viewers how to “supercharge your immune system.” As the coronavirus swept the nation, one media outlet after another recommended stocking up on red bell peppers, broccoli, oranges, and other fresh fruits and vegetables. That’s good advice, but it may lead people to do the right thing for the wrong reason.
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