Do Vitamins Help if You're Already Sick? The Surprising Truth
                                
                                
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                                    5 min read                                
                            
                                According to a review of studies, zinc supplementation may shorten the duration of a cold by approximately 33%. This finding prompts many people to ask: do vitamins help if you're already sick, or are they only effective for prevention? The answer is nuanced, depending on the specific vitamin and individual circumstances.