| Vitamin D |
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Javan
Distinguished Member
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Posted: 22 January 2008 07:25 pm |
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| Curious if anyone else here has seen the news today where the daily reccomendation for Vitamin D is being re-evaluated. I have been reading a bit on this today and seen everything from 1000 IU to 2000 IU a day. Any thoughts on this?
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valmaris
Restricted Member
| Joined: | 18 February 2008 |
| Location: | USA |
| Posts: | 9 |
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Posted: 18 February 2008 06:57 pm |
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What is vitamin D?
Vitamin D (also called calciferol), a fat soluble vitamin, acts as a hormone, which means that it’s made in one place in the body but used elsewhere.
Most of the vitamin D your body uses is made under your skin when you’re exposed to the sun, but you also get it from food.
What vitamin D does for you
Vitamin D helps ensure strong bones by increasing the rate that minerals like calcium and magnesium are deposited into bones. It’s also crucial for the absorption of calcium from food.
How much vitamin D you need?
The current RDA is currently 400IU’s or roughly 10mcg.
Which foods have vitamin D?
Cod liver oil (capsules or liquid form), fatty fish such as herring, mackerel, sardines and salmon, as well as trout and tuna, eggs and cheese.
Signs of vitamin D deficiency
Rickets, once common in children of poorer families who lived in areas of little sunshine, is more rare now. It was caused by poor diets in breastfeeding mothers and resulted in soft, curved bones, particularly in the legs. Breastfeeding mothers who take 10mcg of Vitamin D daily can avoid the problem. People over 65 should take the same amount.
How much vitamin D is too much?
Combining cod liver oil capsules and vitamin D supplements can result in excessive intake. The upper safe limit is 50mcg per day.
New research on vitamin D
Low vitamin D levels have already been linked to an increased risk of osteoporosis, high blood pressure, diabetes and cancer.
Now, researchers have found an association between vitamin D levels and how well the lungs work.
Research has also shown that vitamin D supplements can prevent fractures in elderly people.
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MartyP
New Member
| Joined: | 11 April 2008 |
| Location: | |
| Posts: | 1 |
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Posted: 12 April 2008 03:47 am |
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I take 5000iu of Vitamin D3 each day. I do have my levels checked by a doctor twice a year. Google the Vitamin D Council! You will be amazed at the importance of Vitamin D. Some RX Vitamin D, called Vitamin D2 is not assimilated as well in the body. D3 is the way to go and is used by the body the same way D3 from sunlight is used.
My Doc checked by D levels last year and found that I was "12" almost not there! I now stay in the mid 30's, but could actually be a little higher.
When taking drugs like Drisdol (D2) you have to worry about toxicity, D3 is assimilated so differently that toxicity is rare. 1000iu is actually still a low amount and I bet in the future you will see greater amounts made available.
Also, the more overweight you are, the less likely your body will absorb it well. So obese people should take larger amounts.
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