vitamin a

  1. ecstatichamster

    Vitamin A Without PUFAs?

    I'd like to take vitamin A, without PUFAs. There is "dry" A, but studies show this is harmful. I want to use A from fish liver oil. There are plenty of them and they are inexpensive, but all seem to contain soybean oil. Any ideas? Thanks! P.S. Why does Ray not discuss supplementing with A...
    • ecstatichamster
    • Thread
    • supplemental vitamin a
    • Replies: 12
    • Forum: A
  2. Miggie

    When To Up The Dose Vitamin A Or Lower It

    I just started supplementing vitamin A and I was wondering how do I know if I have enough vitamin A or when I start to overdose? Does anyone have any experience or knowledge on this?
    • Miggie
    • Thread
    • supplemental vitamin a
    • Replies: 10
    • Forum: A
  3. charlie

    Thoughts & Concerns On Retinyl Acetate

    Ella, any thoughts on retinyl acetate? https://en.wikipedia.org/wiki/Retinyl_acetate
    • charlie
    • Thread
    • supplemental vitamin a
    • Replies: 8
    • Forum: A
  4. TheHound

    How To Tell If It's Necessary To Supplement Vitamin A?

    I just started with supplementing vitamin d3 drops because winter is starting soon. I drink lots of milk that already has d and a in it and consume a decent bit of butter everyday, and I also have 3 eggs everyday. I also have liver maybe once every 1-2 weeks. should I start taking a vitamin a...
    • TheHound
    • Thread
    • supplemental vitamin a
    • Replies: 11
    • Forum: A
  5. D

    Vitamin A Experiences

    I have read good things about Vitamin A. It's supposed to be both anti-estrogen and anti-cortisol. It's also been used for allergies. I got an order of retinyl palmitate, 15,000 IU from carlon's lab, on its way. But I wonder what effects to expect. Peat says it's needed for producing the...
    • dookie
    • Thread
    • supplemental vitamin a
    • Replies: 9
    • Forum: A
  6. Giraffe

    Vitamin A - Intestinal Barrier Function, Parasitic Infections

    Vitamin A supplementation effects on intestinal barrier function, growth, total parasitic and specific Giardia spp. infections in Brazilian children: a prospective randomized, double-blind, placebo-controlled trial "This study evaluates the effects of retinol on intestinal barrier function...
  7. haidut

    Vitamin A Is A Powerful Anti-obesity Agent By Lowering Cortisol

    I know some people on the forum struggle with high cortisol, as well as its accompanying side effects such as weight gain, muscle loss, etc. It looks like vitamin A may be able to help, and it can do so even in people with Cushing disease whose cortisol levels are VERY high. Here is some info on...
    • haidut
    • Thread
    • anti-obesity cortisol mitochondriogenesis obesity study vitamin a
    • Replies: 45
    • Forum: Scientific Studies
  8. haidut

    Vitamin A Lowers High Cortisol Levels (Cushing Disease)

    Several studies, starting with the human one. The scientists used retinoic acid, which is the active form of retinol. Usually, people take vitamin A in the form of retinyl palmitate or retinyl acetate, and then these pro-drugs convert into retinoic acid with an efficiency of about 10%. The...
  9. haidut

    Reports Of Vitamin A Toxicity Are Greatly Exaggerated

    This is a human study and as you can see it used up to 500,000 IU vitamin A daily for months for acne treatment without any serious signs of toxicity. Most doctors will warn you that vitamin A will cause liver issues, but as you can see this was not the case here...
  10. T

    Natural Vitamin A. dosage And Source

    Carleson has a natural vitamin A derived from fish. Is fish OK as a source of natural vitamin A ? What would the normal dosage be for natural vitamin a ? I get added Vit A from milk..its synthetic yet hard to avoid if I'm to drink milk.
    • Theo
    • Thread
    • supplemental vitamin a
    • Replies: 3
    • Forum: A
  11. haidut

    Combination Of Vitamins K2 & A Essentially Cures Leukemia

    Stumbled upon this while researching the effects of vitamin K2 (MK-4) on blood coagulation. As you can see, the dose of vitamin K2 was not even that high - 20mg daily. ATRA was administered at 60mg daily. Keep in mind that the two toxic chemotherapeutic agents enocatibine and daunorubicin were...
  12. haidut

    Taurine Enhances Bioavailability Of Vitamins K, A, D, E

    The fat soluble vitamins are a great tool to help metabolism and improve overall health. However their oral usage is sometimes hindered by their requirements for ingestion of fat. In the case of vitamin K2 (MK-4) the fat requirement can be large (35g+) and thus inconvenient to implement while on...
    • haidut
    • Thread
    • bioavailability study taurine vitamin a vitamin d vitamin e vitamin k
    • Replies: 37
    • Forum: Scientific Studies
  13. haidut

    Vitamin A As A Powerful Treatment For Cancer

    The use of vitamin a for leukemia-type cancers is nothing new and has been considered first-line therapy for decades. However, this study found out that activated vitamin A (all-trans-retinoic-acid, ATRA) blocks multiple vital cancer development pathways (in many cancer types) and also...
    • haidut
    • Thread
    • article cancer health vitamin a
    • Replies: 11
    • Forum: Cancer
  14. haidut

    Vitamin A Stimulates Testosterone Production

    I know some people here are trying to raise testosterone and have even asked Peat about it. Peat responded long the lines of "increase vitamin A and thyroid". It looks like he is right (again) about the vitamin A part. This study shows that both retinol and retinoic acid stimulated testosterone...
  15. I

    Nutrisorb A Alternative?

    I guess Nutrisorb A is gone forever now? It has been out of stock for over a year now. What vitamin A are people using instead? Dan doesn't have a Toxinless page so not sure what to order...
    • ilovethesea
    • Thread
    • supplemental vitamin a
    • Replies: 4
    • Forum: A
  16. haidut

    Vitamin A Increases DHT By Enhancing 5-alpha Reductase

    Rat study, and it used preformed all-trans-retinoic acid (ATRA) but it should hold true for retinol and its various esters like retinyl acetate/palmitate. The human dosage for ATRA was in the range 500mg-700mg, which is a huge dose. http://www.ncbi.nlm.nih.gov/pubmed/10423178...
  17. P

    The Effect Of Vitamin A Supplementation On Thyroid Function In Premenopausal Women

    http://www.ncbi.nlm.nih.gov/pubmed/23378454 Abstract OBJECTIVE: Vitamin A and its retinoid derivates play an important role in regulation of normal growth and development. Vitamin A has been shown to regulate thyroid hormone metabolism and inhibit thyroid-stimulating hormone (TSH) secretion...
  18. haidut

    Vitamin A is dopaminergic and reduces prolactin in humans

    In theory, anything that reduces prolactin will likely also reduce estrogen and vice versa. So, since vitamin A is anti-estrogenic I wondered if there is evidence that vitamin A will lower prolactin and/or increase dopamine. Below is some evidence that vitamin A is indeed dopaminergic and lowers...
  19. S

    Vitamin A And Malaria Risk

    Vitamin A supplements, routine immunization, and the subsequent risk of Plasmodium infection among children under 5 years in sub-Saharan Africa http://elifesciences.org/content/4/e03925/article-info
  20. haidut

    Vitamin A Blocks The Hypercalcemia From Vitamin D

    I mention this effect in another post, but wanted to post the studies as well. Basically, the studies with vitamin D alone have been disappointing and in some cases quite negative. For instance, taking only calcium and vitamin D has shown negative effects on CVD and cancer. While the authors...
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