Group: General Diet & Nutrition

Created: 2011/12/31, Members: 399, Messages: 16719

With such a topic so broad we truly try to cover the basics from all angles in this group. Nothing too big or too small. Nutrition is as significant if not more as exercise is to reaching your goals so learn all you can.

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Vitamin A

Random.
Random.
Posts: 23
Joined: 2004/02/02
United States
2004/02/10, 11:15 PM
i was looking at the nutrition analyzer and it said that i only need like 927.0 µg of vitamin A. but it says that i usally intake like around 4000-8000 µg of vitamin A and it says exellent..so i was just wondering at what point is it to have too much vitamin A... i tried doing some research on this online.. but i didnt really get an amount on how much is too much..
mmaibohm
mmaibohm
Posts: 1,621
Joined: 2003/09/30
United States
2004/02/11, 12:26 AM
Vitamin A toxicity can occur with long-term consumption of 20 mg of retinol or more per day. The symptoms of vitamin A overdosing include accumulation of water in the brain (hydrocephalus), vomiting, tiredness, constipation, bone pain, and severe headaches. The skin may acquire a rough and dry appearance, with hair loss and brittle nails.
http://www.healthatoz.com/healthatoz/Atoz/ency/vitamin_toxicity.html
hope this helps - Mike

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I must not fear.
Fear is the mind-killer.
Fear is the little death that brings total obliteration.
I will face my fear.
I will permit it to pass over me and through me.
And when it is gone past me I will turn to see fear's path.
Where the fear has gone there will be nothing.
Only I will remain
bb1fit
bb1fit
Posts: 11,105
Joined: 2001/06/30
United States
2004/02/11, 10:11 AM
mmaibohm, good post. Yes, Vit. A is one of the few vitamins that can be toxic in large doses. The best way to get your Vit. A is through a source like Beta Carotene. The body breaks down and utilizes from it the A that it needs.


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If you don't stand for something, you will fall for anything....
JessicaR
JessicaR
Posts: 467
Joined: 2002/08/12
United States
2004/02/11, 11:25 AM
Am I wrong that vitamin A toxicity is only a risk when using supplements? I thought the only risk to getting too much vitamin A naturally (too much beta carotene) was turning orange. Or is that just early toxicity?
bb1fit
bb1fit
Posts: 11,105
Joined: 2001/06/30
United States
2004/02/11, 01:10 PM
You are correct, we are talking supplementation.

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Quoting from JessicaR:

Am I wrong that vitamin A toxicity is only a risk when using supplements? I thought the only risk to getting too much vitamin A naturally (too much beta carotene) was turning orange. Or is that just early toxicity?
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If you don't stand for something, you will fall for anything....
Random.
Random.
Posts: 23
Joined: 2004/02/02
United States
2004/02/11, 05:41 PM
yup it helps.. thanks alot for answering guys