Hey guys,
Starting a new supplementation plan/diet and I’m hoping someone can help me out and let me know if from a medical standpoint there IS such thing as taking too many vitamins. For example I heard it take a toll on the kidney, is this true or is it just a wifes tale? I currently take supps such as multi vitamin, calcium, glucosemine, zma, creatine, bcaa, and other vitamins such as A, B, and C. Looking forward to hearing back with advice!! Thank you!
What I do in my free time is more than likely going to have a worse negative effect on my kidney than my vitamins.
Too many vitamins can stress your liver. Too many is entirely individual so it’s difficult to speculate unless you get blood work done.
Water soluble like b vitamins, no not really. Some Fat soluble like vit E, absolutely.
As far as kidney damage, vitamins A and D, along with calcium, when taken in excess could possibly damage the kidneys. In general, excesses of the fat soluble vitamins like A,D, and E can also several non-kidney related issues. Taking too much of the anti-oxidant Vitamin C can also cause it to become a PRO oxidant. Excess B vitamins can cause problems in people with diabetes.
Vitamins are complicated. This is part of the reason Biotest doesn’t have a multi-vitamin yet.
[quote]TC wrote:
As far as kidney damage, vitamins A and D, along with calcium, when taken in excess could possibly damage the kidneys. In general, excesses of the fat soluble vitamins like A,D, and E can also several non-kidney related issues. Taking too much of the anti-oxidant Vitamin C can also cause it to become a PRO oxidant. Excess B vitamins can cause problems in people with diabetes.
Vitamins are complicated. This is part of the reason Biotest doesn’t have a multi-vitamin yet.[/quote]
Such an amazing three letter word at the end there.
Ha! Never say never, you know.
[quote]pushharder wrote:
[quote]TC wrote:
As far as kidney damage, vitamins…D…when taken in excess could possibly damage the kidneys…[/quote]
How much D3 would be considered excessive?
FWIW, I live near a town that is the sixth cloudiest in the US. I take 20,000 iu daily.[/quote]
Chris Shugart, “D is for Doping”:
[quote]pushharder wrote:
[quote]TC wrote:
As far as kidney damage, vitamins…D…when taken in excess could possibly damage the kidneys…[/quote]
How much D3 would be considered excessive?
FWIW, I live near a town that is the sixth cloudiest in the US. I take 20,000 iu daily.[/quote]
This is the most vitamin D I’ve ever heard of someone taking. For reference this is 0.5mg (40 IU per mcg), and toxicity starts to become a concern at 1-2mg.
Poliquin’s bolus dosage recommendation was the most I had ever heard of (35000 IUs 2x per week). This is double that. Wow.
The water soluble vitamins will not be a problem because you will excrete the excess as long as you drink enough water but the fat soluble ones can cause problems because the excess will be stored in the body in fat cells and large reserves will inter the blood if the fat is broken down.
I’ve seen that the recommended amount per day of vitamin D is 1,000 IUs per 25 lbs of bodyweight. That’s from some vitamin D institute (not sure of the exact name off the top of my head).
[quote]hods347 wrote:
I’ve seen that the recommended amount per day of vitamin D is 1,000 IUs per 25 lbs of bodyweight. That’s from some vitamin D institute (not sure of the exact name off the top of my head).[/quote]
that’s 8,000 per day for a 200 lbs. male. That’s…a lot. After reading the D is for Doping article I went with 2000 per day, and up it to 4000 a few times per week in the winter.
[quote]AccipiterQ wrote:
[quote]hods347 wrote:
I’ve seen that the recommended amount per day of vitamin D is 1,000 IUs per 25 lbs of bodyweight. That’s from some vitamin D institute (not sure of the exact name off the top of my head).[/quote]
that’s 8,000 per day for a 200 lbs. male. That’s…a lot. After reading the D is for Doping article I went with 2000 per day, and up it to 4000 a few times per week in the winter. [/quote]
It’s per the Vitamin D Council, which is referenced in that article. They recommend 5,000 IUs for adults and 1,000 per 25 lbs of bodyweight for children. That being said, they also recommend as a starting point 1,000 per 25 lbs of bodyweight. That’s from Dr. John Cannell of the Vitamin D Council.