I was of the understanding that D3 is lipophillic to the extent that it would likely just be absorbed into and leeched from fat over time. I’m not well read on the literature
Before vitamin D can be stored in fat it must first be absorbed from the digestive system into the bloodstream. The absorbtion efficiency varies by individual but no one absorbs 100%. After making it into the blood some excess vitamin D can be stored in fat cells for later use.
Looks like ~4000IU a week is plenty, even with no sunlight exposure.
You’re looking at like 13x the recommended intake; that’s going to screw up your calcium levels eventually. And the stuff is cumulative, it’s not like eg. vitamin C, which is gone from your system a day later.
My very strong advice would be don’t.
If you’ve got a massive deficiency, follow medical advice.
I had to do exactly this after a blood test showed my vit D was so low they couldn’t accurately test it. It was to bring it back up to level, and now I just take a normal amount every day to keep it that way.
Vitamin D has a big impact on emotions, and in my case I felt nothing emotionally.
Like literally nothing
It took a few weeks to feel normal again but that first week it was like all my emotions got turned up to 11 and because it had been so low for so long I had little to no control of those emotions.
I was a damn emotional wreck for that first week and a bit of a wreck in the following weeks.
Sweden’s recommendations are 100 µg/day for adult, which is 4000 IU (IE) per day. Times 7, is 28000 per week. So you’re off by a factor of 7.
Some tests have shown even up to 10000 per day is fine. But why risk it? While I’d not take OPs 50000 per week, because it’s too much in my eyes, it could still be save, but I’d personally not risk it. There’s no point in overdoing it.
I take 5000 UI every other day, because I barely get any sunlight. Probably a bit too low but I’d rather not risk it.
It is for some people. I currently need to take 100k iu/week in order to be on the low end of normal.
I was on 150k iu, but I had to switch doctors. The new idiot didn’t believe me and just told me take an OTC pill a day.
I left that guy. The next time I got checked, I was in the single digits. The new one didn’t really believe me either. Each winter visit I’ve been low and she just keeps adding another pill. I suspect I’ll be back up to 150k then.
When my vitamin D levels were tested low, the doc told me to take 2,000 IBU daily.
~7000/day seems quite high to me. But I’m not a doctor.
I would consider if the cost of purchasing all this vitamin D - a lot of of which your body may be excreting rather than absorbing - is a worthwhile financial investment in your health. I don’t know anything about you, maybe it is.
Unlike e.g. vitamin C, excess vitamin D isn’t really excreted. It’s stored long term and eventually causes hypercalcemia and kidney stones if persistently supplemented at high doses over a long time. OP’s dosage is above the “sensible if you never see the sun” range but not quite in the “dangerously excessive” range.
Can you maybe clarify what you mean with “work”? What are you trying to achieve by significantly exceeding any supplemental recommendation that I’ve ever heard of?
Are you worried, that your Vitamin D3 levels are significantly too low, because you’re suffering e.g. from SAD, another mood- or an autoimmune disorder?
Talk to your doctor, get your levels checked, follow their advice and take the dose they recommend for the time they recommend!
Are you planning to relocate to a cave? Will you never see the sun again?
Talk to a medical professional about that plan, take whatever supplements they recommend for as long as they recommend them.
Are you living in a cold and dark country like Sweden? Then that country probably has safe guidelines you can follow. If you’re still worried or you are experiencing any symptoms that might be related to low Vitamin D3 levels, talk to a medical professional!
Why are you trying to exceed any recommended dosage by the factor of 10? Where did you get that number in the first place?
I believe that number is still low enough to not pose any immediate risk in the short or mid term. Your doctor might even agree that high supplementation is necessary to get your level up.
As a long term plan and without knowing your actual levels, it’s just stupid: At best it does nothing but waste your money on needless supplements. At worst it increases the risks that come with overdosing on Vitamin D3.
Probably more wasteful than anything. Vitamin D3 is pretty safe, and that’s not a crazy dose for a serious deficiency. It’s probably worth getting tested for your level and dropping to about half that if you aren’t low.