Excessive Vitamin C Consumption Does Not Cause Kidney Stones!

November 9, 2005

Thank-you!

Any Aussies on the list - if you're looking for vitamin C friendly

Doctors try the Your Health clinics www.yourhealth.com.au

~ Jowanna.

>

> Your physician will probably never tell you about this so you must

fend for

> yourself. Read the research!

>

> Gupta

> <http://tinyurl.com/b6ghn> http://tinyurl.com/b6ghn

>

> See also:

>

<http://www.newmediaexplorer.org/chris/2005/09/14/the_stonewalling_of_

vitami

> n_c.htm> The Stonewalling of Vitamin C

> -------------------------------------------------------------

>

> <http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?

cmd=Retrieve & db=PubMed & list_u

> ids=99218032 & dopt=Citation> Intake of vitamins B6 and C and the

risk of

> kidney stones in women

> Curhan, G. C., Willett, W. C., Speizer, F. E., Stampfer, M. J.

> J Am Soc Nephrol 10:4:840-845, Apr 1999

>

> Abstract

>

> Urinary oxalate is an important determinant of calcium oxalate

kidney stone

> formation. High doses of vitamin B6 may decrease oxalate production,

> whereas vitamin C can be metabolized to oxalate. This study was

conducted

> to examine the association between the intakes of vitamins B6 and C

and

> risk of kidney stone formation in women. The relation between the

intake of

> vitamins B6 and C and the risk of symptomatic kidney stones were

> prospectively studied in a cohort of 85,557 women with no history

of kidney

> stones. Semiquantitative food-frequency questionnaires were used to

assess

> vitamin consumption from both foods and supplements. A total of 1078

> incident cases of kidney stones was documented during the 14-yr

follow-up

> period. A high intake of vitamin B6 was inversely associated with

risk of

> stone formation. After adjusting for other dietary factors, the

relative

> risk of incident stone formation for women in the highest category

of B6

> intake (> or =40 mg/d) compared with the lowest category (<3 mg/d)

was 0.66

> (95% confidence interval, 0.44 to 0.98). In contrast, vitamin C

intake was

> not associated with risk. The multivariate relative risk for women

in the

> highest category of vitamin C intake (> or =1500 mg/d) compared

with the

> lowest category (<250 mg/d) was 1.06 (95% confidence interval, 0.69

to

> 1.64). Large doses of vitamin B6 may reduce the risk of kidney stone

> formation in women. Routine restriction of vitamin C to prevent

stone

> formation appears unwarranted.

>

> Linus ing was a mentor of mine and a sponsor of the Center for

Vitamins

> and Cancer Research that I co-founded at the University of Colorado

Medical

> School in 1980. He was a great supporter of Vitamin C for all that

ails

> you. There are many recent research papers showing reduction in

heart

> disease, increased longevity, and so forth from taking more than 10

times

> the government recommended amount of Vitamin C. One of the arguments

> against taking large amount of Vitamin C was the risk of kidney

stones.

> That debate has been laid to rest by a large study showing no

increase in

> kidney stones from Vitamin C and a significant reduction in kidney

stones

> from increased Vitamin B6.

>

> The above originally posted by

> <http://www.jeffsutherland.org/complementary>Jeff Sutherland

>

> Why Don't Massive Doses of Ascorbate Produce Kidney Stones?

>

> Years ago when Linus ing wrote his book " Vitamin C and the

Common

> Cold " , the critics immediately labeled the taking of large doses of

vitamin

> C dangerous because it would produce calcium oxalate kidney stones.

This

> practice of telling people that vitamin C caused kidney stones

continues

> today by the critics of vitamin C despite the lack of clinical

evidence of

> kidney stones in people taking vitamin C

>

> It was hypothesized that since a significant percentage of

ascorbate was

> metabolized into and excreted as oxalic acid that this oxalic acid

should

> combine with calcium in the urine and deposit as calcium oxalate

kidney

> stones. It is true that those of us who take large doses of

ascorbate have

> elevated oxalic acid in our urine but no kidney stones. With the

millions

> of people in the world taking vitamin C, if vitamin C caused kidney

stones

> there would have been a massive epidemic of kidney stones noticed

by this

> time. There has been none.

>

> I started using vitamin C in massive doses in-patients in 1969. By

the time

> I read that ascorbate should cause kidney stones, I had clinical

evidence

> that it did not cause kidney stones, so I continued prescribing

massive

> doses to patients. To this day I estimate that I have put 25,000

patients

> on massive doses of vitamin C and none have developed kidney

stones. Two

> patients who had dropped their doses to 500 mg a day developed

calcium

> oxalate kidney stones. I raised their doses back up to the more

massive

> doses and added magnesium and B6 to their program and no more kidney

> stones. I think that the low doses had no effect and they, by

coincidence,

> developed the kidney stones because they were not taking enough

vitamin C.

>

> The question remains, however, why do not people taking large doses

of

> ascorbate develop kidney stones. I had in 1985 hypothesized that

one of the

> reasons that we did not develop kidney stones was that the ascorbate

> excreted in the urine sterilizes the urine and

> " <http://www.orthomed.com/nonrate.htm#OXALATE KIDNEY>should prevent

many of

> the niduses of infection around which oxalate stones frequently

form. "

> (Cathcart, RF. Vitamin C: the Nontoxic, Nonrate-Limited,

Antioxidant Free

> Radical Scavenger. Medical Hypotheses, 18:61-77, 1985.)

>

> In an article in

<http://www.sciencenews.org/sn_arc98/8_1_98/bob2.htm>

> ScienceNewsOnline, August 1, 1998, the Bacteria in the Stone it is

said

> that Extra-tiny microorganisms may lead to kidney stones and other

> diseases. Tiny nanobacteria, as small as the larger viruses, live

in urine

> and, by precipitating calcium and other minerals around themselves,

induce

> the formation of kidney stones. It seems that the large doses of

ascorbate

> by causing the excretion of ascorbate in the urine probably kills

the

> nanobacteria and prevents the formation of stones.

>

> In addition, the massive doses of ascorbate assist the immune

system to

> kill bacteria within the body but have the ability to kill bacteria

by some

> mechanism, which does not seem to involve the immune system. These

bacteria

> and L-forms of bacteria hide out in cells especially when

antibiotics are

> used and explain some of the resistance acquired by bacteria against

> antibiotics. I have yet to see bacteria that can become resistant to

> massive doses of ascorbate in combination with first and second-

generation

> antibiotics. Admittedly in a private practice, I do not see the most

> resistant bacteria but this combination has been impressive and

deserves to

> be tried against the most resistant bacteria. It may solve the

impending

> problem of increasingly resistant bacteria.

>

> See also the med center study indicating that even moderate doses

of C

> prevent kidney stones.

>

> <http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?

cmd=Retrieve & db=PubMed & list_u

> ids=8618271 & dopt=Abstract> A prospective study of the intake of

vitamins C

> and B6, and the risk of kidney stones in men.

>

> Curhan GC, Willett WC, Rimm EB, Stampfer MJ.

>

> Department of Epidemiology, Harvard School of Public Health, Boston,

> Massachusetts 02115, USA.

>

> PURPOSE: The association between the intake of vitamins C and B6,

and

> kidney stone formation was examined. MATERIALS AND METHODS: We

conducted a

> prospective study of the relationship between the intake of

vitamins C and

> B6 and the risk of symptomatic kidney stones in a cohort of 45,251

men 40

> to 75 years old with no history of kidney calculi. Vitamin intake

from

> foods and supplements was assessed using a semiquantitative food

frequency

> questionnaire completed in 1986. RESULTS: During 6 years of

followup 751

> incident cases of kidney stones were documented. Neither vitamin C

nor

> vitamin B6 intake was significantly associated with the risk of

stone

> formation. For vitamin C the age-adjusted relative risk for men

consuming

> 1,500 mg. daily or more compared to less than 250 mg. daily was

0.78 (95%

> confidence interval 0.54 to 1.11). For vitamin B6 the age-adjusted

relative

> risk for men consuming 40 mg. daily or more compared to less than 3

mg.

> daily was 0.91 (95% confidence interval 0.64 to 1.31). After

adjusting for

> other potential stone risk factors the relative risks did not change

> significantly. CONCLUSIONS: These data do not support an association

> between a high daily intake of vitamin C or vitamin B6 and the risk

of

> stone formation, even when consumed in large doses.

>

> PMID: 8618271 [PubMed - indexed for MEDLINE]

>

> To subscribe / unsubscribe: chrisgupta@a...

>

> --------------------------------------------------------

> Sheri Nakken, R.N., MA, Classical Homeopath

> Vaccination Information & Choice Network, Nevada City CA & Wales UK

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> ******

> " Just look at us. Everything is backwards; everything is upside

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> Doctors destroy health, lawyers destroy justice, universities

destroy

> knowledge, governments destroy freedom, the major media destroy

information

> and religions destroy spirituality " .... Ellner

>

May 30, 2006

Your physician will probably never tell you about this so you must fend for

yourself. Read the research!

Gupta

<http://tinyurl.com/b6ghn> http://tinyurl.com/b6ghn

See also:

<http://www.newmediaexplorer.org/chris/2005/09/14/the_stonewalling_of_vitami

n_c.htm> The Stonewalling of Vitamin C

----------------------------------------------------------

<http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve & db=PubMed & list_u

ids=99218032 & dopt=Citation> Intake of vitamins B6 and C and the risk of

kidney stones in women

Curhan, G. C., Willett, W. C., Speizer, F. E., Stampfer, M. J.

J Am Soc Nephrol 10:4:840-845, Apr 1999

Abstract

Urinary oxalate is an important determinant of calcium oxalate kidney stone

formation. High doses of vitamin B6 may decrease oxalate production,

whereas vitamin C can be metabolized to oxalate. This study was conducted

to examine the association between the intakes of vitamins B6 and C and

risk of kidney stone formation in women. The relation between the intake of

vitamins B6 and C and the risk of symptomatic kidney stones were

prospectively studied in a cohort of 85,557 women with no history of kidney

stones. Semiquantitative food-frequency questionnaires were used to assess

vitamin consumption from both foods and supplements. A total of 1078

incident cases of kidney stones was documented during the 14-yr follow-up

period. A high intake of vitamin B6 was inversely associated with risk of

stone formation. After adjusting for other dietary factors, the relative

risk of incident stone formation for women in the highest category of B6

intake (> or =40 mg/d) compared with the lowest category (<3 mg/d) was 0.66

(95% confidence interval, 0.44 to 0.98). In contrast, vitamin C intake was

not associated with risk. The multivariate relative risk for women in the

highest category of vitamin C intake (> or =1500 mg/d) compared with the

lowest category (<250 mg/d) was 1.06 (95% confidence interval, 0.69 to

1.64). Large doses of vitamin B6 may reduce the risk of kidney stone

formation in women. Routine restriction of vitamin C to prevent stone

formation appears unwarranted.

Linus ing was a mentor of mine and a sponsor of the Center for Vitamins

and Cancer Research that I co-founded at the University of Colorado Medical

School in 1980. He was a great supporter of Vitamin C for all that ails

you. There are many recent research papers showing reduction in heart

disease, increased longevity, and so forth from taking more than 10 times

the government recommended amount of Vitamin C. One of the arguments

against taking large amount of Vitamin C was the risk of kidney stones.

That debate has been laid to rest by a large study showing no increase in

kidney stones from Vitamin C and a significant reduction in kidney stones

from increased Vitamin B6.

The above originally posted by

<http://www.jeffsutherland.org/complementary>Jeff Sutherland

Why Don't Massive Doses of Ascorbate Produce Kidney Stones?

Years ago when Linus ing wrote his book " Vitamin C and the Common

Cold " , the critics immediately labeled the taking of large doses of vitamin

C dangerous because it would produce calcium oxalate kidney stones. This

practice of telling people that vitamin C caused kidney stones continues

today by the critics of vitamin C despite the lack of clinical evidence of

kidney stones in people taking vitamin C

It was hypothesized that since a significant percentage of ascorbate was

metabolized into and excreted as oxalic acid that this oxalic acid should

combine with calcium in the urine and deposit as calcium oxalate kidney

stones. It is true that those of us who take large doses of ascorbate have

elevated oxalic acid in our urine but no kidney stones. With the millions

of people in the world taking vitamin C, if vitamin C caused kidney stones

there would have been a massive epidemic of kidney stones noticed by this

time. There has been none.

I started using vitamin C in massive doses in-patients in 1969. By the time

I read that ascorbate should cause kidney stones, I had clinical evidence

that it did not cause kidney stones, so I continued prescribing massive

doses to patients. To this day I estimate that I have put 25,000 patients

on massive doses of vitamin C and none have developed kidney stones. Two

patients who had dropped their doses to 500 mg a day developed calcium

oxalate kidney stones. I raised their doses back up to the more massive

doses and added magnesium and B6 to their program and no more kidney

stones. I think that the low doses had no effect and they, by coincidence,

developed the kidney stones because they were not taking enough vitamin C.

The question remains, however, why do not people taking large doses of

ascorbate develop kidney stones. I had in 1985 hypothesized that one of the

reasons that we did not develop kidney stones was that the ascorbate

excreted in the urine sterilizes the urine and

" <http://www.orthomed.com/nonrate.htm#OXALATE KIDNEY>should prevent many of

the niduses of infection around which oxalate stones frequently form. "

(Cathcart, RF. Vitamin C: the Nontoxic, Nonrate-Limited, Antioxidant Free

Radical Scavenger. Medical Hypotheses, 18:61-77, 1985.)

In an article in <http://www.sciencenews.org/sn_arc98/8_1_98/bob2.htm>

ScienceNewsOnline, August 1, 1998, the Bacteria in the Stone it is said

that Extra-tiny microorganisms may lead to kidney stones and other

diseases. Tiny nanobacteria, as small as the larger viruses, live in urine

and, by precipitating calcium and other minerals around themselves, induce

the formation of kidney stones. It seems that the large doses of ascorbate

by causing the excretion of ascorbate in the urine probably kills the

nanobacteria and prevents the formation of stones.

In addition, the massive doses of ascorbate assist the immune system to

kill bacteria within the body but have the ability to kill bacteria by some

mechanism, which does not seem to involve the immune system. These bacteria

and L-forms of bacteria hide out in cells especially when antibiotics are

used and explain some of the resistance acquired by bacteria against

antibiotics. I have yet to see bacteria that can become resistant to

massive doses of ascorbate in combination with first and second-generation

antibiotics. Admittedly in a private practice, I do not see the most

resistant bacteria but this combination has been impressive and deserves to

be tried against the most resistant bacteria. It may solve the impending

problem of increasingly resistant bacteria.

See also the med center study indicating that even moderate doses of C

prevent kidney stones.

<http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve & db=PubMed & list_u

ids=8618271 & dopt=Abstract> A prospective study of the intake of vitamins C

and B6, and the risk of kidney stones in men.

Curhan GC, Willett WC, Rimm EB, Stampfer MJ.

Department of Epidemiology, Harvard School of Public Health, Boston,

Massachusetts 02115, USA.

PURPOSE: The association between the intake of vitamins C and B6, and

kidney stone formation was examined. MATERIALS AND METHODS: We conducted a

prospective study of the relationship between the intake of vitamins C and

B6 and the risk of symptomatic kidney stones in a cohort of 45,251 men 40

to 75 years old with no history of kidney calculi. Vitamin intake from

foods and supplements was assessed using a semiquantitative food frequency

questionnaire completed in 1986. RESULTS: During 6 years of followup 751

incident cases of kidney stones were documented. Neither vitamin C nor

vitamin B6 intake was significantly associated with the risk of stone

formation. For vitamin C the age-adjusted relative risk for men consuming

1,500 mg. daily or more compared to less than 250 mg. daily was 0.78 (95%

confidence interval 0.54 to 1.11). For vitamin B6 the age-adjusted relative

risk for men consuming 40 mg. daily or more compared to less than 3 mg.

daily was 0.91 (95% confidence interval 0.64 to 1.31). After adjusting for

other potential stone risk factors the relative risks did not change

significantly. CONCLUSIONS: These data do not support an association

between a high daily intake of vitamin C or vitamin B6 and the risk of

stone formation, even when consumed in large doses.

PMID: 8618271 [PubMed - indexed for MEDLINE]

To subscribe / unsubscribe: chrisgupta@...

November 30, 2008

At 03:00 PM 11/30/2008, you wrote:

>I have tried several times to give my daughter, high functioning

>autism now, Vit. C buffered powder at very small doses & she cannot

>tolerate it at all. I read somewhere that it can aggravate an

>already existing phenol transferase PST problem & she shos the

>symptoms of PT problems ith all fruits & veggies almost. Don't know

>how she survived this long without it or how she got better. I mean

>really better. In Feb. 2005 her ATEC score was 122 & now it's 20. I

>have to give her epsom salts baths & molybdenum & have for 2 yrs.

>now off/on. It's a great balance I must juggle. I have tried to use

>a ND & homeopathy before but we got caught in this PST probelm. Some

>of the ingredients in homeopathic meds have Vit. C

no pure homeopathic remedy has Vitamin C in it.

>in it. When she takes it, she has burning pee or doesn't pee for

>almost a whole day & that's at 1 small pinch. There is almost

>nothing I can use for her for foods, soaps ect. because lots of

>things contain Vit. C. Anyone know any kids with this problem? I

>think they call it a Phase 1 or 2 liver detox enzyme. She is 8yrs.

>old now doesn't get vaxed anymore & last time was about 14 mo. old.

>Mainstreaming in school. Any help or specific suggestions for this

>PST, Vit. C problem would be greatly appreciated. There was a time

>she didn't trust any food I gave her. Jenn L

Haven't heard of what you describe.

May want to go on

EOHarm

email list and ask there

So glad you have come so far

Sheri

> Excessive Vitamin C Consumption Does Not

> Cause Kidney Stones!

>

> Your physician will probably never tell you about this so you must fend for

> yourself. Read the research!

>

> Gupta

> <http://tinyurl.com/b6ghn> http://tinyurl.com/b6ghn

>

> See also:

>

><http://www.newmediaexplorer.org/chris/2005/09/14/the_stonewalling_of_vitami

> n_c.htm> The Stonewalling of Vitamin C

> ----------------------------------------------------------

>

><http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve & db=PubMed & list_u

> ids=99218032 & dopt=Citation> Intake of vitamins B6 and C and the risk of

> kidney stones in women

> Curhan, G. C., Willett, W. C., Speizer, F. E., Stampfer, M. J.

> J Am Soc Nephrol 10:4:840-845, Apr 1999

>

> Abstract

>

> Urinary oxalate is an important determinant of calcium oxalate kidney stone

> formation. High doses of vitamin B6 may decrease oxalate production,

> whereas vitamin C can be metabolized to oxalate. This study was conducted

> to examine the association between the intakes of vitamins B6 and C and

> risk of kidney stone formation in women. The relation between the intake of

> vitamins B6 and C and the risk of symptomatic kidney stones were

> prospectively studied in a cohort of 85,557 women with no history of kidney

> stones. Semiquantitative food-frequency questionnaires were used to assess

> vitamin consumption from both foods and supplements. A total of 1078

> incident cases of kidney stones was documented during the 14-yr follow-up

> period. A high intake of vitamin B6 was inversely associated with risk of

> stone formation. After adjusting for other dietary factors, the relative

> risk of incident stone formation for women in the highest category of B6

> intake (> or =40 mg/d) compared with the lowest category (<3 mg/d) was 0.66

> (95% confidence interval, 0.44 to 0.98). In contrast, vitamin C intake was

> not associated with risk. The multivariate relative risk for women in the

> highest category of vitamin C intake (> or =1500 mg/d) compared with the

> lowest category (<250 mg/d) was 1.06 (95% confidence interval, 0.69 to

> 1.64). Large doses of vitamin B6 may reduce the risk of kidney stone

> formation in women. Routine restriction of vitamin C to prevent stone

> formation appears unwarranted.

>

> Linus ing was a mentor of mine and a sponsor of the Center for Vitamins

> and Cancer Research that I co-founded at the University of Colorado Medical

> School in 1980. He was a great supporter of Vitamin C for all that ails

> you. There are many recent research papers showing reduction in heart

> disease, increased longevity, and so forth from taking more than 10 times

> the government recommended amount of Vitamin C. One of the arguments

> against taking large amount of Vitamin C was the risk of kidney stones.

> That debate has been laid to rest by a large study showing no increase in

> kidney stones from Vitamin C and a significant reduction in kidney stones

> from increased Vitamin B6.

>

> The above originally posted by

> <http://www.jeffsutherland.org/complementary>Jeff Sutherland

>

> Why Don't Massive Doses of Ascorbate Produce Kidney Stones?

>

> Years ago when Linus ing wrote his book " Vitamin C and the Common

> Cold " , the critics immediately labeled the taking of large doses of vitamin

> C dangerous because it would produce calcium oxalate kidney stones. This

> practice of telling people that vitamin C caused kidney stones continues

> today by the critics of vitamin C despite the lack of clinical evidence of

> kidney stones in people taking vitamin C

>

> It was hypothesized that since a significant percentage of ascorbate was

> metabolized into and excreted as oxalic acid that this oxalic acid should

> combine with calcium in the urine and deposit as calcium oxalate kidney

> stones. It is true that those of us who take large doses of ascorbate have

> elevated oxalic acid in our urine but no kidney stones. With the millions

> of people in the world taking vitamin C, if vitamin C caused kidney stones

> there would have been a massive epidemic of kidney stones noticed by this

> time. There has been none.

>

> I started using vitamin C in massive doses in-patients in 1969. By the time

> I read that ascorbate should cause kidney stones, I had clinical evidence

> that it did not cause kidney stones, so I continued prescribing massive

> doses to patients. To this day I estimate that I have put 25,000 patients

> on massive doses of vitamin C and none have developed kidney stones. Two

> patients who had dropped their doses to 500 mg a day developed calcium

> oxalate kidney stones. I raised their doses back up to the more massive

> doses and added magnesium and B6 to their program and no more kidney

> stones. I think that the low doses had no effect and they, by coincidence,

> developed the kidney stones because they were not taking enough vitamin C.

>

> The question remains, however, why do not people taking large doses of

> ascorbate develop kidney stones. I had in 1985 hypothesized that one of the

> reasons that we did not develop kidney stones was that the ascorbate

> excreted in the urine sterilizes the urine and

> " <http://www.orthomed.com/nonrate.htm#OXALATE KIDNEY>should prevent many of

> the niduses of infection around which oxalate stones frequently form. "

> (Cathcart, RF. Vitamin C: the Nontoxic, Nonrate-Limited, Antioxidant Free

> Radical Scavenger. Medical Hypotheses, 18:61-77, 1985.)

>

> In an article in <http://www.sciencenews.org/sn_arc98/8_1_98/bob2.htm>

> ScienceNewsOnline, August 1, 1998, the Bacteria in the Stone it is said

> that Extra-tiny microorganisms may lead to kidney stones and other

> diseases. Tiny nanobacteria, as small as the larger viruses, live in urine

> and, by precipitating calcium and other minerals around themselves, induce

> the formation of kidney stones. It seems that the large doses of ascorbate

> by causing the excretion of ascorbate in the urine probably kills the

> nanobacteria and prevents the formation of stones.

>

> In addition, the massive doses of ascorbate assist the immune system to

> kill bacteria within the body but have the ability to kill bacteria by some

> mechanism, which does not seem to involve the immune system. These bacteria

> and L-forms of bacteria hide out in cells especially when antibiotics are

> used and explain some of the resistance acquired by bacteria against

> antibiotics. I have yet to see bacteria that can become resistant to

> massive doses of ascorbate in combination with first and second-generation

> antibiotics. Admittedly in a private practice, I do not see the most

> resistant bacteria but this combination has been impressive and deserves to

> be tried against the most resistant bacteria. It may solve the impending

> problem of increasingly resistant bacteria.

>

> See also the med center study indicating that even moderate doses of C

> prevent kidney stones.

>

><http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve & db=PubMed & list_u

> ids=8618271 & dopt=Abstract> A prospective study of the intake of vitamins C

> and B6, and the risk of kidney stones in men.

>

> Curhan GC, Willett WC, Rimm EB, Stampfer MJ.

>

> Department of Epidemiology, Harvard School of Public Health, Boston,

> Massachusetts 02115, USA.

>

> PURPOSE: The association between the intake of vitamins C and B6, and

> kidney stone formation was examined. MATERIALS AND METHODS: We conducted a

> prospective study of the relationship between the intake of vitamins C and

> B6 and the risk of symptomatic kidney stones in a cohort of 45,251 men 40

> to 75 years old with no history of kidney calculi. Vitamin intake from

> foods and supplements was assessed using a semiquantitative food frequency

> questionnaire completed in 1986. RESULTS: During 6 years of followup 751

> incident cases of kidney stones were documented. Neither vitamin C nor

> vitamin B6 intake was significantly associated with the risk of stone

> formation. For vitamin C the age-adjusted relative risk for men consuming

> 1,500 mg. daily or more compared to less than 250 mg. daily was 0.78 (95%

> confidence interval 0.54 to 1.11). For vitamin B6 the age-adjusted relative

> risk for men consuming 40 mg. daily or more compared to less than 3 mg.

> daily was 0.91 (95% confidence interval 0.64 to 1.31). After adjusting for

> other potential stone risk factors the relative risks did not change

> significantly. CONCLUSIONS: These data do not support an association

> between a high daily intake of vitamin C or vitamin B6 and the risk of

> stone formation, even when consumed in large doses.

>

> PMID: 8618271 [PubMed - indexed for MEDLINE]

>

> To subscribe / unsubscribe: chrisgupta@...

>

November 30, 2008

No ascorbic acid at all? I thought I read that homeopathy uses minerals &

vitamins sometimes in their remedies? Jenn L

Excessive Vitamin C Consumption Does Not