112. Truths About Vitamin A and Toxicity from Foods - The Science with Dr. Garrett Smith - Part 1

In this episode with Dr. Garrett Smith, we discuss the different forms of vitamin A and the body’s ability to absorb these nutrients. You can view the YouTube video here: https://youtu.be/vS0eZK5LIkE We discuss he following in this 2-part episode: Basics about Vitamin A Can eating natural Vitamin A from foods, especially animal sources, be toxic? Is vitamin A from supplements and food sources the same? Is there a difference in toxicity between natural and synthetic forms of Vitamin A? Does the body really turn food Vitamin A into the same chemicals as Accutane and Retin-A? Is there a variation from person to person in terms of how susceptible one might be to Vitamin A toxicity? How much liver should a pregnant woman eat? How much liver should you eat for bone health? How much liver should a baby eat? What is the relationship between Vitamin A toxicity, insulin resistance, and thyroid function? Weston A Price, Ray Peat and Nose to Tail Carnivores—what they all have in common Zinc vs Vitamin A Vitamin D vs Vitamin A Citations discussed in episodes: Video with Grant Genereux: https://www.youtube.com/watch?v=7OC4dwGp8Q0 Nutrition with Judy Liver Post: https://nutritionwithjudy.com/liver-and-risks-of-vitamin-a-toxicity/ https://pubmed.ncbi.nlm.nih.gov/3655980/ https://pubmed.ncbi.nlm.nih.gov/3356421/ https://vcahospitals.com/know-your-pet/vitamin-a-toxicosis-in-dogs https://docs.google.com/presentation/d/1PHloTw4T-flhCHWVZIyqiZWDJdFIBQA9IlyxhR_Zz4Y/htmlpresent https://www.sciencedirect.com/science/article/pii/B9780323352147000317 https://pubmed.ncbi.nlm.nih.gov/30514131/ https://pubmed.ncbi.nlm.nih.gov/30475970/ https://www.youtube.com/watch?v=WX_HU7FwxBU https://pubmed.ncbi.nlm.nih.gov/7189278/ https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.1009.4901&rep=rep1&type=pdf https://www.nejm.org/doi/full/10.1056/NEJMe020167 https://en.wikipedia.org/wiki/Xavier_Mertz#Legacy https://ttu-ir.tdl.org/bitstream/handle/2346/13806/31295003974952.pdf?sequence=1 https://www.youtube.com/watch?v=AzfU10Pv36c https://pubmed.ncbi.nlm.nih.gov/?term=hypervitaminosis+A+hypercalcemia https://academic.oup.com/cardiovascres/article/36/3/293/298591 https://pubmed.ncbi.nlm.nih.gov/18916905/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC55