People spend billions of dollars every year trying to boost their health with multivitamins- but are they actually good for you? Hosted by: Michael Aranda ———- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ———- Dooblydoo thanks go to the following Patreon supporters — we couldn’t make SciShow without them! Shout out to Justin Ove, Accalia Elementia, Kathy & Tim Philip, Kevin Bealer, Justin Lentz, Fatima Iqbal, Thomas J., Chris Peters, Tim Curwick, Lucy McGlasson, Andreas Heydeck, Will and Sonja Marple, Mark Terrio-Cameron, Charles George, Christopher Collins, and Patrick D. Ashmore. ———- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ———- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ———- Sources: https://www.nlm.nih.gov/medlineplus/ency/article/002399.htm https://ods.od.nih.gov/Health_Information/Dietary_Reference_Intakes.aspx http://www.nap.edu/read/9810/chapter/1 http://www.nap.edu/read/10026/chapter/1 http://extension.colostate.edu/topic-areas/nutrition-food-safety-health/water-soluble-vitamins-b-complex-and-vitamin-c-9-312/ http://extension.colostate.edu/topic-areas/nutrition-food-safety-health/fat-soluble-vitamins-a-d-e-and-k-9-315/ http://www.npr.org/sections/health-shots/2013/12/17/251955878/the-case-against-multivitamins-grows-stronger http://www.usatoday.com/story/news/nation/2013/12/16/vitamin-supplements-research/4042037/ Images: https://commons.wikimedia.org/wiki/File%3ABone_hypercalcemia_-_very_high_mag.jpg