Is vitamin A toxic? It can be! It’s a super-important essential nutrient and MANY people need MORE of it, yet it still has the potential to cause problems. Here is a method to use signs and symptoms, the amounts of vitamin A you’ve been exposed to, and lab tests to determine if you’ve gotten too much. There are a few symptoms that I neglected to mention in the video that are worth taking note of: skin peeling, itching, cracked lips, and fatigue. This episode is brought to you by Ancestral Supplements' Grass Fed Beef Brain. Our Native American ancestors believed that eating the organs from a healthy animal would support the health of the corresponding organ of the individual. Ancestral Supplements has a nose-to-tail product line of grass-fed liver, organs, bone marrow and brain... all in the convenience of a capsule. For more information or to buy any of their products, go to https://AncestralSupplements.com This episode is brought to you by Ample. Ample is a meal-in-a-bottle that takes a total of two minutes to prepare, consume, and clean up. It provides the right balance of nutrients needed for a single meal, all from a blend of natural ingredients. Ample is available in original, vegan, and keto versions, portioned as either 400 or 600 calories per meal. I'm an advisor to Ample, and I use it to save time when I'm working on major projects on a tight schedule. Head to https://amplemeal.com and enter the promo code “CHRIS15” at checkout for a 15% discount off your first order. To get these episodes free of ads, with transcripts, and weeks or sometimes even months before they are released to the public, along with access to monthly live Q&A sessions, sign up for the CMJ Masterpass at https://chrismasterjohnphd.com/masterpass. Use the code LITE10 to get 10% off. To make it easier to get the discount, use this link, which has the coupon already activated: https://masterpass.chrismasterjohnphd.com/cmj-masterpass/2200/buy?coupon=LITE10 Here’s a great paper on vitamin A toxicity: https://academic.oup.com/ajcn/article/78/6/1152/4677527 Testing Nutritional Status: The Ultimate Cheat Sheet covers testing for vitamin A toxicity in the context of a comprehensive plan for managing nutritional status. Use the code LITE5 to get $5 off: https://chrismasterjohnphd.com/cheatsheet