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Can Vitamin C and Zinc Help Cure Colds?

You’ve probably heard that taking vitamin C or zinc will keep you from getting sick, but it turns out that those popular cure-alls don't actually work. We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciSho... Hosted by: Stefan Chin ---------- Support SciShow by becoming a patron on Patreon:   / scishow   ---------- Dooblydoo thanks go to the following Patreon supporters: KSam Lutfi, Kevin Knupp, Nicholas Smith, Inerri, D.A. Noe, alexander wadsworth, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick Merrithew, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali, Kevin Bealer, Philippe von Bergen, Chris Peters, Fatima Iqbal, Justin Lentz ---------- Looking for SciShow elsewhere on the internet? Facebook:   / scishow   Twitter:   / scishow   Tumblr:   / scishow   Instagram:   / thescishow   ---------- Sources: http://www.ur.umich.edu/0203/Mar10_03... https://jamanetwork.com/journals/jama... https://www.ncbi.nlm.nih.gov/pubmed/2... https://www.ncbi.nlm.nih.gov/pubmed/1... https://www.quackwatch.org/01Quackery... https://www.ncbi.nlm.nih.gov/pmc/arti... https://www.ncbi.nlm.nih.gov/pubmed/1... https://www.ncbi.nlm.nih.gov/pubmed/2... http://ajcn.nutrition.org/content/68/... https://www.ncbi.nlm.nih.gov/pmc/arti... https://www.ncbi.nlm.nih.gov/pubmed/2... https://www.nap.edu/read/10026/chapte... https://www.health.harvard.edu/blog/z... https://www.fda.gov/food/resourcesfor... https://www.nytimes.com/2015/02/07/op... https://www.ncbi.nlm.nih.gov/pubmed/2... https://www.ncbi.nlm.nih.gov/pubmed/2... http://www.bmj.com/content/328/7438/499 https://www.ncbi.nlm.nih.gov/pubmed/2... ---------- Images: https://commons.wikimedia.org/wiki/Fi...