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My parents wanted to know the side effects of creatine so they called the doctor and they mentioned something about kidney stones being a result. Do a lot of creatine users end up with kidney stones? I really want to give creatine a try but this is making me unsure.
Yeah, I heard about that.
I have *heard* it does that, but do not actually know from a personal experience, best bet would be to buy some books, or research CREDIBLE sites on the net
I'm pretty sure that only happens when you are underhydrated (and creatine intake requires a LOT of water intake).
But hey, I don't take it (proper nutrition is already complex enough) so await someone else's opinion too.
I've read it happens when very large doses of creatine are taken.
[QUOTE=m27]I'm pretty sure that only happens when you are underhydrated (and creatine intake requires a LOT of water intake).
But hey, I don't take it (proper nutrition is already complex enough) so await someone else's opinion too.[/QUOTE]
long term high doses of creatine combined with a lack of hydration will increase the chance of such problems.
If you cycle on and off and drink a lot of water a day then this will not apply
i took up to 25g a day for a week then 10g a day for a month and havnt had any problems.
don't listen to your doctors!!!!!! I know that people will say I am stupid, but the doctor said i had kidney stones and wanted me to get surgery!... he blamed it on the creatine as well, i declined, and later found out i didn't have kidney stones!
the problem is when people think "hey, if 10g of creatine is great for you. 20 will be better! and 30 would be better than 20! i'll take 30g a day, but split up over 6 doses". what happens is that your body can process and absorb only so much creatine. after that it is turned into creatinine and filtered out of the body. this is done by your kidneys/liver and can cause damage when they're so overworked for a long time.
[QUOTE=northballer13]don't listen to your doctors!!!!!! I know that people will say I am stupid, but the doctor said i had kidney stones and wanted me to get surgery!... he blamed it on the creatine as well, i declined, and later found out i didn't have kidney stones![/QUOTE]
yes, dont listen to your doctors. they dont know anything. i dont even know why we have doctors, every diagnosis they make is automaticly incorrect.
you get kidney stone when you areunderhydrated and creatine make you less hydrated so you need to drink more water thenusuallyor you will more likely get kidney stones but that is if u take alot of creatine 15g+
This might help.
[QUOTE] [B]Effects of long-term creatine supplementation on liver and kidney functions in American college football players.[/B]
The purpose of this study was to determine the effect of long-term Cr supplementation on blood parameters reflecting liver and kidney function. Twenty-three members of an NCAA Division II American football team (ages = 19-24 years) with at least 2 years of strength training experience were divided into a Cr monohydrate group (CrM, n = 10) in which they voluntarily and spontaneously ingested creatine, and a control group (n = 13) in which they took no supplements. Individuals in the CrM group averaged regular daily consumption of 5 to 20 g (mean SD = 13.9 5.8 g) for 0.25 to 5.6 years (2.9 1.8 years). Venous blood analysis for serum albumin, alkaline phosphatase, alanine aminotransferase, aspartate aminotransferase, bilirubin, urea, and creatinine produced no significant differences between groups. Creatinine clearance was estimated from serum creatinine and was not significantly different between groups. Within the CrM group, correlations between all blood parameters and either daily dosage or duration of supplementation were nonsignificant. [B]Therefore, it appears that oral supplementation with CrM has no long-term detrimental effects on kidney or liver functions in highly trained college athletes in the absence of other nutritional supplements.[/B]
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[url]http://www.ncbi.nlm.nih.gov/pubmed/12500988[/url]
[QUOTE][B]Long-term creatine supplementation does not significantly affect clinical markers of health in athletes.[/B]
Creatine has been reported to be an effective ergogenic aid for athletes. However, concerns have been raised regarding the long-term safety of creatine supplementation. This study examined the effects of long-term creatine supplementation on a 69-item panel of serum, whole blood, and urinary markers of clinical health status in athletes. Over a 21-month period, 98 Division IA college football players were administered in an open label manner creatine or non-creatine containing supplements following training sessions. Subjects who ingested creatine were administered 15.75 g/day of creatine monohydrate for 5 days and an average of 5 g/day thereafter in 5-10 g/day doses. Fasting blood and 24-h urine samples were collected at 0, 1, 1.5, 4, 6, 10, 12, 17, and 21 months of training. A comprehensive quantitative clinical chemistry panel was determined on serum and whole blood samples (metabolic markers, muscle and liver enzymes, electrolytes, lipid profiles, hematological markers, and lymphocytes). In addition, urine samples were quantitatively and qualitative analyzed to assess clinical status and renal function. At the end of the study, subjects were categorized into groups that did not take creatine (n = 44) and subjects who took creatine for 0-6 months (mean 4.4 +/- 1.8 months, n = 12), 7-12 months (mean 9.3 +/- 2.0 months, n = 25), and 12-21 months (mean 19.3 +/- 2.4 months, n = 17). Baseline and the subjects' final blood and urine samples were analyzed by MANOVA and 2 x 2 repeated measures ANOVA univariate tests. MANOVA revealed no significant differences (p = 0.51) among groups in the 54-item panel of quantitative blood and urine markers assessed. Univariate analysis revealed no clinically significant interactions among groups in markers of clinical status. In addition, no apparent differences were observed among groups in the 15-item panel of qualitative urine markers. [B]Results indicate that long-term creatine supplementation (up to 21-months) does not appear to adversely effect markers of health status in athletes undergoing intense training in comparison to athletes who do not take creatine.[/B] [/QUOTE]
[url]http://www.ncbi.nlm.nih.gov/pubmed/12701816[/url]
a few months ago i had to have surgery to break up a 3cm wide stone in my bladder. all my life i never had any stones then within the first year of lifting i get a huge ass stone. i dont know if its from protein or creatine i just hope i dont get it again.