https://peertube.lagbag.com/videos/watch/e9982945-b030-4790-882b-56a963471239 Over-the-counter melatonin (“anti-gonad hormone”) supplements tend not to contain what they say they do and the contaminants could be dangerous. New subscribers to our e-newsletter always receive a free gift. Get yours here: https://nutritionfacts.org/subscribe/ This is the 2nd in a 3-video series on jet lag and melatonin. If you missed the first one, check out How to Treat Jet Lag with Light (http://nutritionfacts.org/video/how-to-treat-jet-lag-with-light), and stay tuned for How to Treat Jet Lag with Melatonin-Rich Food (http://nutritionfacts.org/video/How-to-Treat-Jet-Lag-with-Melatonin-Rich-Food). Other videos on how criminally the supplement industry is under-regulated include: • Heavy Metals in Protein Powder Supplements (https://nutritionfacts.org/video/heavy-metals-in-protein-powder-supplements/) • Some Dietary Supplements May Be More Than a Waste of Money (https://nutritionfacts.org/video/some-dietary-supplements-may-be-more-than-a-waste-of-money/) • Black Raspberry Supplements Put to the Test (https://nutritionfacts.org/video/black-raspberry-supplements-put-to-the-test) • Dangers of Dietary Supplement Deregulation (https://nutritionfacts.org/video/Dangers-of-dietary-Supplement-Deregulation) • Do Vitamin C Supplements Prevent Colds but Cause Kidney Stones? (https://nutritionfacts.org/video/do-vitamin-c-supplements-prevent-colds-but-cause-kidney-stones) • Lead in Calcium Supplements (http://nutritionfacts.org/video/Lead-in-Calcium-Supplements) Have a question about this video? Leave it in the comment section at http://nutritionfacts.org/video/are-melatonin-supplements-safe and someone on the NutritionFacts.org team will try to answer it. Want to get a list of links to all the scientific sources used in this video? Click on Sources Cited at http://nutritionfacts.org/video/are-melatonin-supplements-safe. You’ll also find a transcript and acknowledgements for the video, my blog and speaking tour schedule, and an easy way to search (by translated language even) through our videos spanning more than 2,000 health topics. If you’d rather watch these videos on YouTube, subscribe to my YouTube Channel here: https://www.youtube.com/subscription_center?add_user=nutritionfactsorg Thanks for watching. I hope you’ll join in the evidence-based nutrition revolution! -Michael Greger, MD FACLM Captions for this video are available in several languages. To find yours, click on the settings wheel on the lower-right of the video and then "Subtitles/CC." Do you have feedback about the translations in this video? Please share it here along with the title of the video and language: https://nutritionfacts.zendesk.com/hc/requests/new To view the subtitles in transcript format, click on the ellipsis button below the video, choose "Open transcript", and select the language you'd like to view them in. Image credit: IDA Foundation https://NutritionFacts.org • Subscribe: https://nutritionfacts.org/subscribe • Donate: https://nutritionfacts.org/donate • Podcast : https://nutritionfacts.org/audio • Facebook: www.facebook.com/NutritionFacts.org • Twitter: www.twitter.com/nutrition_facts • Instagram: www.instagram.com/nutrition_facts_org • Books: https://nutritionfacts.org/books • Shop: https://drgreger.org Fri, 24 Apr 2026 12:25:52 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.lagbag.com https://peertube.lagbag.com/client/assets/images/icons/icon-512x512.png https://peertube.lagbag.com/videos/watch/e9982945-b030-4790-882b-56a963471239 All rights reserved, unless otherwise specified in the terms specified at https://peertube.lagbag.com/about and potential licenses granted by each content's rightholder.