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Can Vitamin C Cure the Common Cold?

Vitamin C supplements have exploded the market due to one scientist - but can it really cure your cold? Subscribe to Nourishable at    / nourishable   Follow Nourishable on twitter, facebook and instagram to stay up to date on all things nutrition.   / nourishable   fb.me/nourishable.tv   / nourishable   Hosting, Research, Writing & Post-Production by Lara Hyde, PhD http://www.nourishable.tv Assistant Producer: Aliza Baskir https://sites.tufts.edu/alizabaskir/ Music & Video Production by Robbie Hyde    / chedderchowder   Opening Motion Graphics by Jay Purugganan https://www.c9studio.com/WP/ Script with in-text citations https://bit.ly/33ream4 The information in this video is not intended or implied to be a substitute for professional medical advice, diagnosis or treatment. All content, including text, graphics, images and information, contained on or available through this video is for general information purposes only. References https://books.google.com/books/about/... https://www.ncbi.nlm.nih.gov/pmc/arti... https://www.mv.helsinki.fi/home/hemil... https://www.vox.com/2019/10/2/2089564... https://www.nielsen.com/us/en https://pubmed.ncbi.nlm.nih.gov/23381... https://www.amazon.com/Dropsy-Dialysi... https://www.ncbi.nlm.nih.gov/pmc/arti... https://www.vox.com/2015/1/15/7547741... https://pubmed.ncbi.nlm.nih.gov/13741... https://www.ncbi.nlm.nih.gov/pmc/arti... https://pubmed.ncbi.nlm.nih.gov/23440... https://ods.od.nih.gov/factsheets/Vit... https://fdc.nal.usda.gov/index.html https://www.ncbi.nlm.nih.gov/pmc/arti... https://www.jimgaffigan.com/ Footage: GRANGER, JeepersMedia, Wikimedia Commons, Andrei Savitsky Pixabay: Humanoide VFX, Bru-NO, Ri-Ya, Nick Murphy, BEM Films, Pexels, heimseiten_WebdesignKoeln, moakets, tookapic, Engin Akyurt, Pexels: ThisIsEngineering, James Wheeler, Anna Shvets, Gustavo Fring, ready made, Polina Tankilevitch Freepik: freepik, pch.vector, kjpargeter, pikisuperstar, Flaticon, macrovector, gstudioimagen Videvo Vitamin C has long been promoted as a remedy for the common cold, and it is necessary for immune health. As an antioxidant, it helps clean up the mess when white blood cells fight infections. The instinct to pound vitamin C pills was popularized by Linus Pauling. Linus published a wildly popular book promoting megadoses to fight colds. Should you be taking a daily vitamin C supplement? Supplements like EmergenC are a growing 200 million dollar industry. The majority of people who take vitamin C do it to boost their immune system. Linus focused the end of his career on megavitamin therapy to treat disease. His 1970 book Vitamin C and the Common Cold went viral. Linus, himself, started taking 3000 mg of vitamin C daily and eventually increased to 18,000 mg. Who wouldn’t believe him? In his book he analyzed 4 studies looking at vitamin C and the common cold. But there were a few flaws in his analysis. The main study that Linus used was a short trial of children who took 1000 mg of vitamin C per day while at ski school in the Alps. This study found substantially reduced incidence of colds, meaning actually getting a cold, and shortened duration, meaning how long your cold lasts. Linus made up a third variable where he combined incidence and duration. He called this mash-up ‘integrated morbidity. The reality is that incidence and duration have really different patterns so you can’t just multiply them together. But, Linus put a lot of emphasis on this mashed up integrated morbidity, which was frankly, just isn’t a good metric. Another major flaw in his analysis was that it relied heavily on the ski children's study to make sweeping conclusions for the whole population. It’s thought that they may have had low vitamin C status to begin with, so then extra vitamin C, at any amount, would benefit the immune system. Skiing in the cold Swiss winter at high altitude is pretty intense physical stress which can also impact how vitamin C is used by the body. Linus was too optimistic about his conclusions on vitamin C and colds. He used findings from a special population to make generalizations for the whole population. His conclusions were popular with the public and fueled the vitamin C industry we know today. Linus Pauling single handedly exploded the vitamin C industry, but he was overly optimistic and, frankly, wrong. Vitamin C supplementation does not help fight the common cold in generally healthy people, but there may be special populations who benefit.The ski kids that Linus used to make his generalizations was quite possibly one of these special populations. This is very different from all people taking vitamin C every single day.