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

In this video with Dr. Garrett Smith, we discuss the different forms of vitamin A and the body’s ability to absorb these nutrients.

We discuss the 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/PMC5551430/
https://pubmed.ncbi.nlm.nih.gov/26729422/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4890907/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1266903/
https://ibimapublishing.com/articles/OBES/2014/837473/837473.pdf
https://link.springer.com/article/10.3275/8948
http://teratology.org/pubs/vitamina.htm

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DR. GARRETT SMITH RESOURCES:
- Dr. Garrett Smith’s Website: https://nutritionrestored.com/
- His Research Forum: https://nutritionrestored.com/blog-forum/
- Dr. Garrett Smith’s YouTube Channel: https://www.youtube.com/channel/UCNbgzk3ouCb3r-pbA38fxjQ

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CHECK OUT MY BOOK, CARNIVORE CURE: https://amzn.to/37R4lOY

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**DISCLAIMER: I am only here to provide support as a nutritional therapy practitioner and I am not providing medical advice. I always recommend working with a team of holistic practitioners, including your PCP and a certified nutritional therapy practitioner. Do not self-diagnose. Always seek medical guidance when you have a medical condition.
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