Multivitamin-Vitamin A content
Hi,
My brother has been prescribed a multivitamin with the following fat soluble vitamins as ingredients for 3 weeks. Vitamin A as palmitate - 2000 iu Vitamin D - 400 IU Vitamin E - 25 IU Is the vitamin A content in this safe ? I am asking because I dont know much about vitamins. I have read a lot of vitamin A toxicity and hence I fear it. Thank you. |
You can learn about Vit A here:
http://lpi.oregonstate.edu/mic/vitamins/vitamin-A This is not a high dose vitamin supplement. The Vit A content is twice the RDA... but upper level suggested to not exceed is 10,000 in the US. |
Quote:
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Madisongrrl,
It is very dangerous to overdose on Cod Liver Oil and organ meats. eg. Liver of bear has vitamin A in dangerous amounts. 1 gram contains Vitamin A that wud suffice for 2 years. Ingesting this amount even inadvertently can be dangerous. It will cause hypervitaminosis A. There is no treatment for Vitamin A toxicity. Even small toxic amounts take months to deplete from your body. Vit D3 supplements can be taken by properly monitoring it. I am against Vitamin A supplements. There is no definite test for Vitamin A. There is a test but that is not correct. It shows wrong values. It is good to get Vitamin A from papaya ,cantaloupe ,milk and veg dietary sources. |
Quote:
Here is an article by Chris Kresser that speaks to Vitamin A toxicity/deficiency. He also explains the interplay between Vitamins A and D and talks about cod liver oil vs organ meats. He points out that you would need to eat 22 ounces of beef liver or 5 tablespoons of cod liver oil each day to create a vitamin A toxicity. I only eat liver occasionally and take 1 teaspoon of green pastures fermented cod liver oil each day because I think it is a reasonable approach. http://chriskresser.com/9-steps-to-p...lement-wisely/ I'd also recommend reading anything by Chris Masterjohn PhD on this topic; he is a expert in fat soluble vitamins. Quote:
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The short term vitamin supplements that your brother has been prescribed seem very reasonable to me, provided that he is avoiding seal or polar bear livers in his diet. |
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