I just got my bloodwork back, and I'm at 35ng's for vitamin D.
From what I understand this is low (supposed to be 50-85ng's). I already take 10,000 i.u.'s of vitamin D a day.
Any thoughts on raising my vitamin D levels?
My thoughts on it: I can (a) pray for more sun (b) increase my dose to 14-16 i.u.'s and hope that changes my blood levels (c) switch to high-vitamin cod liver oil, and hope the natural nutrients fix the issue (d) switch to some other recommended brand (e) unknown?
I work a 2nd shift, so my exposure to sun is minimal throughout the week. I live in Seattle, and it rains a lot. I weigh 300lbs (working on losing the extra weight), which I understand can limit the amount of vitamin D I absorb. I currently take 5 of the Costco brand of Vitamin D, which is a fat soluble 2k i.u. pill, which I take with a bit of heavy cream (I'm following the archevore diet). I am also diagnosed with a low thyroid (I take synthroid and cytomel) and am dealing with some metabolic/adrenal issues with my obesity.
asked byJake_2 (1639)
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on June 13, 2011
at 11:34 PM
First, 35 ng/mL isn't terribly low. By the estimation of juuust about every D expert, it's acceptable or just below acceptable. Personally, I tend to see 50-55 ng/mL as just about right. levels above that are very very difficult to achieve from sun - ie pale lifeguards at biologically unusual latitudes spending all day in the sun.
The weight is likely a significant factor - you may need at least 12,000 IU for at least 3 months before you see it move much.
In addition: 1)not the costco brand - William Davis has had a lot of trouble improving levels for his clients that take that particular one (and the brand that it really is before costco rebrands it)
2)the weight is a huge factor. I'd guess you'll need at least 12k IU for 3 months to improve the levels.
3)inflammation affects the conversions and utilization of D and it's analogues. as you loose weight, reduce inflammation etc, you will need less
4)I'm not a fan of high vitamin CLO. I just haven't seen any evidence that such a ratio of A to D is biologically appropriate or that daily doses of A at that level are what is appropriate for humans. After all, liver is our main source of A. No matter how much meat and organ meat we consume, there is only one liver per animal and a lot of non-liver, non-vitamin A meat in said animal.
Questions: What was the level before you started supplementing? How long have you been taking 10,000 IU?
Do make sure you're getting some A or having liver once every week or two.
The thyroid and adrenal issues will resolve as you replete micronutrients over the longer term. Don't fall into the trap of eating just muscle meat and high fat dairy. We absolutely require the nutrients found in organ meats - and not just liver, but thymus (sweetbreads) and the rest as well.
Avoid n6 fats (nuts, veg oils) like the plague that they are. Focus on seafood and grassfed ruminants reducing intake of poultry and pork (both high in n6).
on November 09, 2012
at 03:43 PM
If relatively high doses are not moving your Vitamin D levels significantly, then this simply means that you need to also take magnesium citrate for better absorption because the two work synergistically and go hand in hand. Furthermore, many people are just as deficient in magnesium as they are in Vitamin D : )
on October 26, 2011
at 03:03 PM
I think you and I are in the same boat. A lot of fat. Vit. D is stored in fat. My take on it is when you consume your Vit D supplement it goes to the fat cells for storage, leaving low blood levels. When you get your fat cells topped off, then you see your blood level rise. At least, that's my guess on how it works, I'm sure no expert, but my experience tracks with yours. I started with 5000 iu a day about 8 months before I was first tested and was found at 32 ng/ml. After that I went up to 15,000 iu for a year and was at 45 ng/ml. I'm now taking 20,000 iu. and will get checked soon. But it's certainly been no quick rise for me at a decent dose every day. My advice is just stick to it and it will rise to a good level at some point, but it may take awhile unless you want to play fast and loose and go with huge doses. I'm a little chicken on doing that, so I'm doing it at lower levels, plus, I'm hopeful that I get off this plateau I'm on and will start losing again, which should release some of the stored Vit D.
Anyway, good luck with it. :)
on June 14, 2011
at 04:00 AM
I suggest some caution with such heavy vitamin D supplementation (or heavy supplementation of any kind). My friend who is a biochemistry PhD student recently told me that she saw a talk at a conference about how supplements can harm receptors by overloading them with high doses, which make them less receptive to the vitamin/mineral in question. His data was based on vit D supplements, and he showed how elderly patients who supplemented with 5,000 daily IU of vit D had weaker bones according to post mortem analysis than controls with no supplementation. He interpreted this to indicate that their receptors weren't accepting the vit D in the supplements. Now, we are talking about a population of elderly patients who are close to death, and I'm afraid I don't have a link to this talk, but the overall idea makes sense, and is worth taking into account. (I'm going to post this as a question to see if anybody knows anything about it.)