Hmm… I was trying to subscript the ‘3’ in D3; formatting didn’t take, I see :o).
My primary care doctor monitors for both B and D vitamins, and has me supplement with both. I currently take 5000 units D¬¬3; I’ll discuss this with him again in mid December, and will try to post his thoughts then.
--Bill
loaded question...too little is no good and so is too much.
GS GIRL< above,with the low D number may be low because your body is throwing it off to keep her calcium lower, she should have her PTH checked ASAP.
the truth is this vitamin is essential to health, so much so that the skin will make it for you, enough to stay healthy with only 10 minutes of sunlight exposure per day.
the truth also is that without enough you get sad, infections, more diebetes, and a whole host of other bad things with a deficiency.
However too much can also cause issue....some docs now think 50 rather than 40 is a good number...however this might not be wisdom, there are issues with trying to keep it too high just as too low.
Why. Well for one thing, excess Vitamin A and D are stored in the liver...and too much of either can cause problems...severe overdoses of these fat soluble vitamins can even be fatal. Google Admiral Perry expedition, they died because they ate Polar bear liver, which has way more of these vitamins then humans can tolerate.
The main issue for A & D is they help maintain bone, and prevent a variety of diseases as part of their effects on metabolism. The D will help you hold onto calcium, and keep your teeth and bones strong. The only reason this can backfire is if you have a kidney insufficiency, kidney stones, or an overactive parathyroid. In those cases taking D can actually cause kidney stones, strokes and more.
So the main thing is to make sure you need the vitamin by having a blood test done to check both the D level, and your calcium level.
GS girl, If one takes D, and it still stays low, it may be the body is throwing it off to protect itself.
Go to parathyroid.com and read up on the page on Vitamin D to understand how that works.
If you want to take D go ahead, but I would ask for a Dexa scan, then you will have a base line to go by, and repeat this every 2 years to see how your bones are doing. If you are staying the same, keep your dose the same, if you are losing bone, up your dose, if you are gaining, then lower your dose. Too much can lead to bone spurs, stenosis, bursitis and other issues. Ergo high doses have a component of danger that the proponents of the higher doses never point out.
I think the best thing is to get some sun, eat fish, things high in D, and then if you do supplement keep the dose fairlu low. 1-2000...higher than that and over time you could cause too much calcium to be stored, and like I said, the excess calcium gets stored in bad ways, like kidney stones, like plauques, like gall stones, like bone spurs and bursitis....so between high and low dose...somewhere in between lies sanity.
Also, it depends on your diet how much you need, A piece of Salmon has about 700 IU,,,,fruits and veggies are high in vitamins, fresh food vs. processed, junk food is low...
without knowing how you eat, it would be hard to say what your need is.
Generally a fresh well balanced diet requires far less supplementation as the healthy foods supply the vitamins themselves.
Interesting , My Hepa, suggested taking 2000 IU when on tx.
http://www.hivandhepatitis.com/2010_conference/easl/docs/0518_2010_b.html
http://www.businessweek.com/news/2010-11-30/vitamin-d-calcium-supplements-may-be-unnecessary.html