Not absorbing vitamin D?
 

In November, I had blood drawn for a hormone issue and I was found to have slightly low vitamin D (19 out of a 20-100 range). I began taking supplements, once a week for 12 weeks that were prescribed by doctor. I finished taking them a couple weeks ago and just went to my doctor Thursday for muscle/joint aches and pains.

My vitamin D is now lower then it was before (16 on a 30-100 scale). What would cause this to drop lower, despite taking supplements?

Could this be related to my hormonal issues? (adreenal hyperplasia or addenoma, not sure which right now).

Re: Not absorbing vitamin D?
 

The problem with Vitamin D orally overall, is that it does not do well. Most of it doesn't absorb even if you eat a fatty meal with it. Even worse, prescription Vitamin D, which is D2, doesn't absorb as well as D3. And once/week won't work well either. If your body absorbs 15% of oral Vitamin D, you'd be far better off taking smaller amounts every day of the week for a long time, vs. once/week. You will accumulate a lot more in the body that way. Don't neglect to take advantage of sunlight either, if it's convenient.

Re: Not absorbing vitamin D?
 

If you live in the northern hemisphere, it would not be surprising that your vitamin D levels went down from November to February, as this is the season when you are likely to get the least sunlight on your skin.

Re: Not absorbing vitamin D?
 

Are you taking any stomach protector (like omeoprazole) . This can inhibit absorption.
Also, you need an adequate calcium level to be absorbed.

Jesus

Re: Not absorbing vitamin D?
 

Actually, calcium has nothing to do with vitamin D absorption. Vitamin D is lipid soluble, so you have to some fat ingested with it to transport across the cell membranes. Calcium has more to do with vitamin D utilization, not absorption.

Re: Not absorbing vitamin D?
 

Did you take the vitamin d with some fat? it is a fat soluable vitamin, and cant be adsorbed without some fat being present at the same time.

Re: Not absorbing vitamin D?
 

[QUOTE=jonnstar;4686354]Did you take the vitamin d with some fat? it is a fat soluable vitamin, and cant be adsorbed without some fat being present at the same time.[/QUOTE]

No, I just took it with water. What do you suggest I take it with?

Everyone else, thanks for the replies. I am pretty sure it was related to the fact that it is winter here now and I have been sick for about 6 weeks so I haven't been outside as much. I've been trying to get out in the sun as much as possible.

I have heard that coffee is particularly bad for vitamin d, is there any truth to this? I drink insane amounts of coffee but I will stop if it is contributing to the deficiency.

Are there any other foods I should avoid? Or any foods that are high in vitamin D?

Thank you.