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Vitamin B1: Benefits, Sources, and RDA

Watch more Vitamins and Vitamin Supplements videos: Subscribe to Howcast's YouTube Channel - Learn about Vitamin B1 benefits, the food sources that contain Vitamin B1, and the RDA, in this vitamin supplements video from Howcast. Howcast uploads the highest quality how-to videos daily! Be sure to check out our playlists for guides that interest you: Subscribe to Howcast's other YouTube Channels: Howcast Health Channel - Howcast Video Games Channel - Howcast Tech Channel - Howcast Food Channel - Howcast Arts & Recreation Channel - Howcast Sports & Fitness Channel - Howcast Personal Care & Style Channel - Howcast empowers people with engaging, useful how-to information wherever, whenever they need to know how. Emphasizing high-quality instructional videos, Howcast brings you experts who provide accurate information in easy-to-follow tutorials on everything from makeup, hairstyling, nail art design, and soccer to parkour, skateboarding, dancing, kissing, and much, much more. Hi, I'm Molly Lee, and I'm founder and director of, a holistic health and nutrition practice based in New York City. The recommended daily allowance for vitamin B1, also known as thiamine, is 1.2 milligrams a day. It's not only necessary for mental health it's also great for your hair, skin, muscle growth, appetite, and digestion. To my drinkers and partiers out there, you need to know that alcohol actually destroys vitamin B1. As little as one drink a day can cause a vitamin B1 deficiency. Some early symptoms of vitamin B1 deficiency include depression, mood shifts, and mental dysfunctions. Vitamin B1 deficiency is actually not uncommon today because we eat a diet filled with refined, processed foods. To avoid becoming deficient make sure you're including plenty of B1 vitamin enriched foods. These foods include whole grains, liver, grass fed organic meats, nuts, and seeds. If you're eating a healthy diet, but are experiencing some of the symptoms I mentioned, it would be a good idea to get a B1 complex supplement. That way you'll know for sure that you're getting enough of the B1 vitamin.
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