We prepare a lot of our food to make it safer to eat, but a piece of bread probably won’t hurt you if it’s not made correctly. These six foods, on the other hand, definitely can. Hosted by: Stefan Chin SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: rokoko, Alex Hackman, Andrew Finley Brenan, Lazarus G, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: www.facebook.com/scishow Twitter: www.twitter.com/scishow Tumblr: scishow.tumblr.com Instagram: instagram.com/thescishow ---------- Sources: cfaes.osu.edu/news/articles/chow-line-dry-kidney-beans-need-be-boiled www.ncbi.nlm.nih.gov/pubmed/16441922 www.sigmaaldrich.com/content/dam/sigma-aldrich/docs/Sigma/Product_Information_Sheet/2/l8629pis.pdf www.sciencedaily.com/releases/2003/05/030514080833.htm www.frontiersin.org/articles/10.3389/fpls.2017.00220/full onlinelibrary.wiley.com/doi/full/10.1111/j.1541-4337.2008.00064.x www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100002 www.ncbi.nlm.nih.gov/pubmed/21045121 www.ncbi.nlm.nih.gov/pmc/articles/PMC3125150/ www.ncbi.nlm.nih.gov/books/NBK431101/ www.seriouseats.com/2013/01/jamaica-eating-ackee-and-saltfish-the-n.html www.ncbi.nlm.nih.gov/pmc/articles/PMC3153292/ www.researchgate.net/publication/317237827_Oxalic_AcidOxalates_in_PlantsFrom_Self-Defence_to_Phytoremediation www.nationalgeographic.com/people-and-culture/food/the-plate/2016/05/18/does-rhubarb-deserve-its-killer-reputation/ www.ncbi.nlm.nih.gov/pubmed/8153790 www.cdc.gov/mmwr/preview/mmwrhtml/00001269.htm www.ncbi.nlm.nih.gov/pubmed/2526711 motherboard.vice.com/en_us/article/jp578p/the-science-behind-the-deepest-itch-poison-oak www.wemjournal.org/article/S1080-6032(06)70299-X/fulltext www.theguardian.com/science/blog/2018/jan/17/tetrodotoxin-the-poison-behind-the-japanese-pufferfish-fugu-scare www.theguardian.com/lifeandstyle/2009/jan/29/blowfish-how-to-cook-japan www.ncbi.nlm.nih.gov/pmc/articles/PMC2857358/ pubchem.ncbi.nlm.nih.gov/compound/tetrodotoxin www.ncbi.nlm.nih.gov/pmc/articles/PMC3564078/ Images: ---------- commons.wikimedia.org/wiki/File:Phytohemagglutinin_L.png commons.wikimedia.org/wiki/File:Lotaustralin_structure.svg commons.wikimedia.org/wiki/File:Linamarin.svg commons.wikimedia.org/wiki/File:Waste_not_want_not_WWI_poster.jpg commons.wikimedia.org/wiki/File:Food_is_a_Munition_of_War_-_Don%27t_Waste_It_Art.IWMPST20687.jpg commons.wikimedia.org/wiki/File:Victory-garden.jpg