79 Comments
Jun 24, 2022Liked by Josh Guetzkow

Thank you for this. Throwing away my vitamin A supplement now... Any idea how long it takes to clear out of the body? I’ve been taking it daily for probably a year, year and a half...

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Jun 24, 2022Liked by Josh Guetzkow

https://wwd.com/shop/shop-beauty/best-vitamin-a-creams-1234813789/

The A vitamin is popular in the beauty business.

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Lots of stuff at CTD on Vitamin A

https://ctdbase.org/detail.go?type=chem&acc=D014801

Interferon Gamma high on the list of interacting genes

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Jun 25, 2022Liked by Josh Guetzkow

Im in Dr Smiths program and it is really helping me after decades of trying other approaches with little or negative results. Everything the others were adamant would make me well ended up making me sicker. The 60 dollars to join the program was the best 60 dollars I ever spent!

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Jun 24, 2022Liked by Josh Guetzkow

Generally, would you recommend against eating liver (e.g. chicken or beef) because of this? I always thought liver was a healthy food because of the density of various nutrients, but that includes Vitamin A.

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You might like

https://geoffpain.substack.com/p/rapid-liver-failure-after-pfizer

will update soon

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Polar Bears already mentioned I guess

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Jun 26, 2022Liked by Josh Guetzkow

I’m coming from a position of taking supplements because I know my diet isn’t the best (can’t stand most vegetables). So learning that my vitamin A, D, K, and turmeric supplements are not beneficial (and even harmful) is completely knew to me in the last few days. What about the magnesium, vitamin C, zinc, Quercetin, and NAC I’ve been taking?

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Jun 25, 2022Liked by Josh Guetzkow

Pondering the vitamin A and autoimmune relationship, I'm wondering whether women metabolise this vitamin somewhat differently to men, since we are more prone,on balance, to many autoimmune disorders: I've had a couple, as have several acquaintances.

Is it likely that vitamin A is more toxic for females?

Perhaps Dr Guetzkow could let us have his thoughts on whether any evidence exists to support this conjecture.

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I'm curious about the relationship between Vitamin A 'toxicity' and Vitamin K2 and Vitamin D. I learned while researching Vitamin K2 that there's a complex relationship between fat soluble vitamins A, D, E, and K2 which involves some degree of competition or mutual counter-action between the vitamins.

So if you are getting lots of A but little K2 and/or D, that may produce 'toxicity'. Nutritionist Kate Rhéaume-Bleue's goes into this in her book about Vitamin K2, but I admit I have forgotten the details.

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Jul 2, 2022·edited Jul 2, 2022

I found it interesting to compare the amount of vitamin A in whole milk and 2% milk. My whole milk contains 91 mcg vitamin A per cup, about 152 IU's. I use this for coffee. It doesn't list any added vitamin A. Two percent milk that I eat with cereal shows added vitamin A palmitate on the label, and one cup contains 169 mcg vitamin A, which is about 282 IU's (per https://www.omnicalculator.com/health/mcg-to-iu-converter), which is almost double the amount in whole milk. I wonder why they supplement the vitamin A in 2% milk but not whole milk, and why they decide to give 2% milk so much more vitamin A per serving than whole milk. I'm not giving up milk, but I think I can live without the 2%, and I'll just be buying whole milk for now, and I'll continue checking the labels of various milk producers for added vitamin A.

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It is well-known - it is even on the warning label of bottles - that vitamin A above a certain level is dangerous to pregnant women.

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What's the story with Vitamin A deficiency vis a vis measles?

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Are you saying that golden rice is a scam because (1) it doesn’t solve Vitamin A deficiency, or (2) because Vitamin A is toxic?

I equated golden rice to supplemental vitamin spray because they are both scams that get you to think you can keep eating those frankenfoods. Healthy foods don’t need to be "fortified" or "enriched".

It doesn’t surprise me that golden rice does a poor job at solving Vitamin A deficiency. So does "enriching" food, which is why I drew the parallel. My point is that Bill Gates isn’t poisoning people with Vitamin A, he is malnourishing people while using a garbage version of Vitamin A to hype his product.

I assume you agree with me that Vitamin A from natural sources (food) is NOT toxic. After all, one of the links you sent me has this quote: "in order for beta-carotene to be effectively absorbed and be converted, fat (e.g. butter or vegetable oil) must be present in the meal.

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What are your thoughts on Weston A. Price's work? His book "Nutrition and Physical Degeneration" is free online, and the Weston A Price Foundation has written a lot in defense of Vitamin A on their website.

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Um, are you referring to vitamin A in the active (retinol) form, or the pro-vitamin beta carotenes, please, or do you make no distinction? These are commonly conflated but I think that is a mistake. I used to have acne but my skin is fine since I started eating liver and I think it's probably that I needed the retinol from liver. I know it's not uncommon (25% of a sample of UK women in one study I saw) for people to have no activity in the enzyme in the body that converts the provitamin to the retinol form, I have assumed I must be one of those. Too much betacarotene really doesn't agree with me. But liver really helps with my health. sample size n=1 ;)

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