In low doses, zinc won’t harm, but it might not help

Dr. Keith Roach Dr. Roach regrets that he is unable to answer individual letters, but will incorporate them in the column whenever possible. Readers may email questions to ToYourGoodHealth@med.cornell.edu or request an order form of available health news
LIFESTYLES

DEAR DR. ROACH: I always have had a low resistance to germs and have caught colds every two to three months. I take adequate vitamins and B-12 shots. Approximately eight months ago, I started taking 50 mg zinc once a day. I feel fine and have not...

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