Kristina Byas is contributor at Investopedia. As a personal finance expert, she has lent her insights and knowledge to numerous financial publications. Her articles have helped readers navigate the ...
Vitamin C may help treat colds but might not prevent them. Taking 1 to 4 grams of vitamin C per day for five days may help shorten a cold. Adults should not exceed 2,000 milligrams of vitamin C per ...
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