Too much Vitamin C?
- 03-07-2013, 08:36 AM
Too much Vitamin C?
I've done some looking into it but I wanted to know if anyone's had any issues with this. It's recommended that don't take in more than 2000 mg of vitamin C a day. Well between my multivitamin, pre workout, and post workout there's my 2000 mg. anyone ever have any problems because of too much Vitamin C?
- 03-07-2013, 08:52 AM
2g is unlikely to give you diarrhea.
I've used as high as 4-6g with no issues. Being water soluble and in your case it's not all in 1 dose you will be fine.
03-07-2013, 09:42 AM
recommended by who? With vitamin C, unless its time release, it pretty well all is flushed out within 2 hours anyhow. So getting the 2g in isn't bad if it isn't all at the same time.
03-07-2013, 09:52 AM
I also heard something about it not being good for woman that cancer runs their family history to take excessive amounts or much supplemental vitamin c. Not really sure where I heard that but this thread reminded me of it. If anyone has knowledge of this information id like to know more and whether its bs or not.
03-07-2013, 09:59 AM
03-07-2013, 10:24 AM
There was an interesting thread on this a week or two ago. I am having trouble finding it, but I think the consensus was no more than 1g is needed and the more vitamin c is consumed, the less is absorbed. I also think the thread stated not to take it around peri workout.
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03-07-2013, 11:42 AM
03-07-2013, 01:34 PM
I read not to take more than 500mg at a time somewhere, maybe from Coop. Something about the VitC becoming a pro-oxidant instead of antioxidant. Personally I don't take VitC outside my multi.
03-07-2013, 01:41 PM
Too much of anything can cause problems. Vitamin C is water soluable so it only stays in your system for far less than a day.
03-07-2013, 08:06 PM
500mg is enough to reach saturation within the plasma, any excess is expelled from the body. Has a short half-life of only a few hours and so on.
There has been in vitro tests done to show it turns pro-oxidant at higher dosages but IIRC in vivo there was no issue, although taking beyond 500mg in one sitting is pointless.
There hasn't really been any toxicity issues reported aside from diarrhea (hence the 2g per day UL). In most cases, 500mgs is more than enough.
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03-07-2013, 08:13 PM
I remember taking several grams a day for weeks and I actually was dropping weight and mass. I know vitamin C is supposed to suppress cortisol to a degree, but I wonder if extreme excess can raise it?? I stopped it and the weight came back.
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03-07-2013, 09:02 PM
03-07-2013, 09:18 PM
03-07-2013, 11:20 PM
Vitamin c at 3 or 4 grams is perfectly cool. I candidly do not think c is benign at those levels unlike d or d3 which many advocate. C does not turn pro oxidant and c is good for you. I do agree that everyone is different and some can metabolize more than others. This is all the more reason go take as much as possible. C is really good for old geezers like me and perhaps most important after 35.
03-07-2013, 11:33 PM
If you take 500mg in tablet form though, how much is body going to actually absorb?. I've read on here not to take more than 500mg at a time. But how much of that 500mg is going to actually make it into your blood stream?
03-07-2013, 11:38 PM
03-08-2013, 04:44 AM
She had the full mastectomy and after doing a lot of research we both decided not to go the chemo & radiotherapy route that our specialist wanted.
As soon as she had recovered from the operation she did a full year of high dose intravenous Vitamin C going as high as 80g per sitting, approx. 3 & 4 times per month. All done through a qualified doctor who did regular blood tests to make sure her kidneys stayed within the normal ranges.
So far she has been in remission and excellent health for the last 2 years.
She still has 1 intravenous sitting per month of 60g just for maintenance & peace of mind and she also religiously takes 6g Vit C per day.
We have certainly made some major changes to our diet & lifestyle after all this but who wouldn't.
Not sure if this info is helpful to anyone but just thought I'd share it.
03-08-2013, 09:15 AM
Always willing to learn :D
03-09-2013, 06:44 PM
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03-09-2013, 06:50 PM
My wife got bit by a dog and loaded up on some Vitamin C. 7 or 8 grams at one time, I don't recall. Anyway, it ****ed her up bad. She got really sick for a day or so. Needless to say, she never did that again. haha
03-09-2013, 10:08 PM
03-09-2013, 10:10 PM
03-09-2013, 10:11 PM
03-09-2013, 10:12 PM
03-09-2013, 10:29 PM
03-10-2013, 11:20 AM
I felt a bug coming on a few days ago. Since then I've been using 6g Vit C crystals daily. No GI issues and I'm feeling better knock on wood.
After bumping it up this high, I believe it should be tapered down slowly.
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03-10-2013, 04:03 PM
03-10-2013, 06:40 PM
03-10-2013, 08:13 PM
03-10-2013, 08:15 PM
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