| Is Vitamin C (and other nutritional suplements) safe for dogs? - CLICK HERE for the Pet Manual Forum Home Page |
| Sherry298 |
Is it safe to give my dog ascorbic acid? Are their any vitamins or minerals
that would be bad to give a dog?
Thanks
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| Marshall Dermer |
In article <1C8%c.320104$OB3.14655@bgtnsc05-news.ops.worldnet.att.net> "Sherry298" <sherry298@worldnet.att.net> writes:
>
>Is it safe to give my dog ascorbic acid? Are their any vitamins or minerals
>that would be bad to give a dog?
>
>Thanks
Dear Sherry,
Why do you want to do this?
At the appropriate dose the constituents in a human multiple-vitamin
are safe for dogs, but you really ought to know the nutrients
your dog is getting from his or her dog food before you start
adding vitamins/minerals. There are also doggy vitmins and some
do not have Vitamin C because dogs can synthesize this vitmain.
You can learn more by conducting a key word search here:
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi
Use "canine" plus e.g., "Vitamin C" as search words.
--Marshall
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| Rene |
"Marshall Dermer" <dermer@alpha1.csd.uwm.edu> wrote in message
news:chj74m$892$1@uwm.edu...
> In article <1C8%c.320104$OB3.14655@bgtnsc05-news.ops.worldnet.att.net>
"Sherry298" <sherry298@worldnet.att.net> writes:
> >
> >Is it safe to give my dog ascorbic acid? Are their any vitamins or
minerals
> >that would be bad to give a dog?
> >
> >Thanks
>
> Dear Sherry,
>
> Why do you want to do this?
>
> At the appropriate dose the constituents in a human multiple-vitamin
> are safe for dogs, but you really ought to know the nutrients
> your dog is getting from his or her dog food before you start
> adding vitamins/minerals. There are also doggy vitmins and some
> do not have Vitamin C because dogs can synthesize this vitmain.
>
> You can learn more by conducting a key word search here:
>
> http://www.ncbi.nlm.nih.gov/entrez/query.fcgi
>
> Use "canine" plus e.g., "Vitamin C" as search words.
>
> --Marshall
Why wouldn't you want to do this?
http://www.filadog.com/hip_dysplasia.htm
click on papers towards the bottom entitled "Can Vitamin C help to reduce
the risk to your dog?"
This site is to sell products, but is still informative:
http://www.belfield.com/article5.html
Granted these sites benefit the puppy mostly, but extra vitamin C is needed
during stressful times. I up the vitamin C for dog shows which can be very
stressful for the dog.
Here's a site to look at many supplements:
http://b-naturals.com/Win1999.php
René
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| Steve Crane |
"Sherry298" <sherry298@worldnet.att.net> wrote in message news:<1C8%c.320104$OB3.14655@bgtnsc05-news.ops.worldnet.att.net>...
> Is it safe to give my dog ascorbic acid? Are their any vitamins or minerals
> that would be bad to give a dog?
>
> Thanks
Sherry,
It is "safe" to give your dog Vitamin C in the form of ascorbic
acid. First you need to determine how much vitamin C your dog is
ingesting in the food you already feed. The same would apply to any
other antioxidant vitamin you might care to add to a pet food. One
thing to recognize is that you may be able to buy a pet food that
already contains elevated levels of antioxidant vitamins for much less
cost to feed per day, than buying a non supplemented diet and adding
your own cocktail of antioxidant vitamins.
The next step is to understand what you hope to accomplish by
adding more of anything to a pets diet. In most cases today we do not
see dogs with any diseases relative to "deficiencies". 99.9% of all
disease issues today are relative to excesses in the diet.
Yes, there are minerals that should NOT be added to the average
canine diet. These would be any mineral containing calcium, sodium or
phosphorus. For the most part typical foods contain way more of this
than the dog needs already and adding additional amounts is not only
unecessary but may be harmful.
Some safe levels of two major antioxidants
Vitamin C 150mgs/kg of food or 3.5mg per 100 kcals food ingested
Vitamin E 800 IU's / kg of food or 20 IU's per 100 kcals of food
ingested
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| Marshall Dermer |
In article <10jstbn45tkbs6c@corp.supernews.com> "Rene" <nospam@nospam.com>
writes:
>Why wouldn't you want to do this?
>René
Vitamin C potentiates calcium oxalate crystals/stones. My dog has
had such bladder stones. Vitamin C is not good for every dog.
Below are abstracts of work done with humans.
--Marshall
: J Urol. 2003 Aug;170(2 Pt 1):397-401.
Comment in:
J Urol. 2003 Aug;170(2 Pt 1):402-3.
Effect of ascorbic acid consumption on urinary stone risk factors.
Traxer O, Huet B, Poindexter J, Pak CY, Pearle MS.
Department of Urology, The University of Texas Southwestern Medical Center,
Dallas, 75390-9110, USA.
PURPOSE: Ascorbic acid (AA) has been implicated as a risk factor for calcium
oxalate stones due to its conversion to oxalate and potential acidifying
properties. We evaluated the effect of AA consumption on urinary saturation
of calcium oxalate (CaOx) and urinary pH. MATERIALS AND METHODS: A total of
12 normal subjects (NS) and 12 CaOx stone formers (SF) underwent 2, 6-day
phases of study while maintained on a controlled metabolic diet. In each
phase subjects ingested 1 gm AA or an identical appearing placebo twice
daily. On the last 2 days of each phase 2, 24-hour urine collections were
analyzed for pH and stone risk factors, and blood specimens were submitted
for serum chemistry studies. RESULTS: No difference in urinary pH was found
between placebo and AA phases in NS (6.02 versus 6.02) and SF (6.0 versus
6.0). However, urinary oxalate was statistically significantly higher in the
AA versus placebo phase for NS (34.7 versus 28.5 mg, p = 0.008) and SF (41.0
versus 30.5 mg, p <0.001). Likewise, the CaOx relative saturation ratio was
significantly higher in the AA versus placebo phase for both groups.
CONCLUSIONS: Ingestion of 2 gm AA daily results in no change in urinary pH
but a moderate though statistically significant increase in urinary oxalate
in NS (20%) and SF (33%). Stone formers respond no differently to AA than
normal subjects. We recommend limiting AA use to less than 2 gm daily in
CaOx stone formers.
Publication Types:
Clinical Trial
Randomized Controlled Trial
PMID: 12853784 [PubMed - indexed for MEDLINE]
Kidney Int. 2003 Mar;63(3):1066-71. Related Articles, Links
Effect of vitamin C supplements on urinary oxalate and pH in calcium
stone-forming patients.
Baxmann AC, De O G Mendonca C, Heilberg IP.
Nephrology Division, Universidade Federal de Sao Paulo, UNIFESP, Brazil.
BACKGROUND: The contribution of ascorbate to urinary oxalate is
controversial. The present study aimed to determine whether urinary oxalate
and pH may be affected by vitamin C supplementation in calcium stone-forming
patients. METHODS: Forty-seven adult calcium stone-forming patients received
either 1 g (N=23) or 2 g (N=24) of vitamin C supplement for 3 days and 20
healthy subjects received 1 g. A 24-hour urine sample was obtained both
before and after vitamin C for calcium, oxalate, magnesium, citrate, sodium,
potassium, and creatinine determination. The Tiselius index was used as a
calcium oxalate crystallization index. A spot fasting morning urine sample
was also obtained to determine the urinary pH before and after vitamin C.
RESULTS: Fasting urinary pH did not change after 1 g (5.8 +/- 0.6 vs. 5.8
+/- 0.7) or 2 g vitamin C (5.8 +/- 0.8 vs. 5.8 +/- 0.7). A significant
increase in mean urinary oxalate was observed in calcium stone-forming
patients receiving either 1 g (50 +/- 16 vs. 31 +/- 12 mg/24 hours) or 2 g
(48 +/- 21 vs. 34 +/- 12 mg/24 hours) of vitamin C and in healthy subjects
(25 +/- 12 vs. 39 +/- 13 mg/24 hours). A significant increase in mean
Tiselius index was observed in calcium stone-forming patients after 1 g
(1.43 +/- 0.70 vs. 0.92 +/- 0.65) or 2 g vitamin C (1.61 +/- 1.05 vs. 0.99
+/- 0.55) and in healthy subjects (1.50 +/- 0.69 vs. 0.91 +/- 0.46).
Ancillary analyses of spot urine obtained after vitamin C were performed in
15 control subjects in vessels with or without ethylenediaminetetraacetic
acid (EDTA) with no difference in urinary oxalate between them (28 +/- 23
vs. 26 +/- 21 mg/L), suggesting that the in vitro conversion of ascorbate to
oxalate did not occur. CONCLUSION: These data suggest that vitamin C
supplementation may increase urinary oxalate excretion and the risk of
calcium oxalate crystallization in calcium stone-forming patients.
Publication Types:
Clinical Trial
Controlled Clinical Trial
Relationship Between Vitamin C Intake and Increased Risk of Oxalosis
The Secondary Oxalosis of Renal Failure
by Catherine S. Thompson et al.
The secondary oxalosis syndrome associated with renal failure is an
important, although incompletely understood, complication of renal
insufficiency. The deposition of calcium oxalate crystals in vital organs
can be associated with significant morbidity and mortality. The
pathophysiology of this disorder relates to supersaturation of the blood
with the insoluble calcium salt of oxalate. The factors which aggravate the
hyperoxalemia in individuals with renal failure are only now becoming
evident. Although no effective prevention or treatment exists in the chronic
setting, further investigation into the role of dietary protein restriction,
pyridoxine administration, and avoidance of ascorbic acid supplementation in
patients without a documented deficiency of the vitamin is warranted.
Seminars in Dialysis 1988; 1(2): 94-98
Vitamin C Intoxication and Hyperoxalemia in Chronic Hemodialysis Patients
by Cesar Pru, John Eaton and Carl Kjellstrand
We studied vitamin C levels in 25 stable patients on chronic hemodialysis
who were taking 0.5-1 g vitamin C orally daily and/or dialyzed against
dialysate containing 33.3 µg/ml of vitamin C. We also studied the
relationship between serum vitamin C and oxalate levels in 7 patients on
chronic hemodialysis. All patients had markedly elevated pre- and
postdialysis levels of vitamin C. The predialysis levels of vitamin C showed
extremely good correlation to the serum oxalate levels. Overingestion of
vitamin C in food or as supplementation may lead to excessive serum levels
of vitamin C, resulting in hyperoxalemia that may contribute to vascular
disease in patients on chronic hemodialysis.
Nephron 1985; 39:112-116
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| The Puppy Wizard |
Your dog is DYING from STRESS INDUCED AUTO-
IMMUNE DIS-EASE, aka The Puppy Wizard's SYNDROME.
"Marshall Dermer" <dermer@alpha1.csd.uwm.edu> wrote in message
news:chn4u7$3oc$1@uwm.edu...
> In article <10jstbn45tkbs6c@corp.supernews.com> "Rene"
<nospam@nospam.com>
> writes:
> >Why wouldn't you want to do this?
> >René
>
> Vitamin C potentiates calcium oxalate crystals/stones. My dog
has
> had such bladder stones. Vitamin C is not good for every dog.
>
> Below are abstracts of work done with humans.
>
> --Marshall
>
> : J Urol. 2003 Aug;170(2 Pt 1):397-401.
>
> Comment in:
> J Urol. 2003 Aug;170(2 Pt 1):402-3.
>
> Effect of ascorbic acid consumption on urinary stone risk
factors.
>
> Traxer O, Huet B, Poindexter J, Pak CY, Pearle MS.
>
> Department of Urology, The University of Texas Southwestern
Medical Center,
> Dallas, 75390-9110, USA.
>
> PURPOSE: Ascorbic acid (AA) has been implicated as a risk factor
for calcium
> oxalate stones due to its conversion to oxalate and potential
acidifying
> properties. We evaluated the effect of AA consumption on urinary
saturation
> of calcium oxalate (CaOx) and urinary pH. MATERIALS AND METHODS:
A total of
> 12 normal subjects (NS) and 12 CaOx stone formers (SF) underwent
2, 6-day
> phases of study while maintained on a controlled metabolic diet.
In each
> phase subjects ingested 1 gm AA or an identical appearing
placebo twice
> daily. On the last 2 days of each phase 2, 24-hour urine
collections were
> analyzed for pH and stone risk factors, and blood specimens were
submitted
> for serum chemistry studies. RESULTS: No difference in urinary
pH was found
> between placebo and AA phases in NS (6.02 versus 6.02) and SF
(6.0 versus
> 6.0). However, urinary oxalate was statistically significantly
higher in the
> AA versus placebo phase for NS (34.7 versus 28.5 mg, p = 0.008)
and SF (41.0
> versus 30.5 mg, p <0.001). Likewise, the CaOx relative
saturation ratio was
> significantly higher in the AA versus placebo phase for both
groups.
> CONCLUSIONS: Ingestion of 2 gm AA daily results in no change in
urinary pH
> but a moderate though statistically significant increase in
urinary oxalate
> in NS (20%) and SF (33%). Stone formers respond no differently
to AA than
> normal subjects. We recommend limiting AA use to less than 2 gm
daily in
> CaOx stone formers.
>
> Publication Types:
> Clinical Trial
> Randomized Controlled Trial
>
> PMID: 12853784 [PubMed - indexed for MEDLINE]
>
> Kidney Int. 2003 Mar;63(3):1066-71. Related Articles, Links
>
>
> Effect of vitamin C supplements on urinary oxalate and pH in
calcium
> stone-forming patients.
>
> Baxmann AC, De O G Mendonca C, Heilberg IP.
>
> Nephrology Division, Universidade Federal de Sao Paulo, UNIFESP,
Brazil.
>
> BACKGROUND: The contribution of ascorbate to urinary oxalate is
> controversial. The present study aimed to determine whether
urinary oxalate
> and pH may be affected by vitamin C supplementation in calcium
stone-forming
> patients. METHODS: Forty-seven adult calcium stone-forming
patients received
> either 1 g (N=23) or 2 g (N=24) of vitamin C supplement for 3
days and 20
> healthy subjects received 1 g. A 24-hour urine sample was
obtained both
> before and after vitamin C for calcium, oxalate, magnesium,
citrate, sodium,
> potassium, and creatinine determination. The Tiselius index was
used as a
> calcium oxalate crystallization index. A spot fasting morning
urine sample
> was also obtained to determine the urinary pH before and after
vitamin C.
> RESULTS: Fasting urinary pH did not change after 1 g (5.8 0.6
vs. 5.8
> 0.7) or 2 g vitamin C (5.8 0.8 vs. 5.8 0.7). A significant
> increase in mean urinary oxalate was observed in calcium
stone-forming
> patients receiving either 1 g (50 16 vs. 31 12 mg/24 hours) or
2 g
> (48 21 vs. 34 12 mg/24 hours) of vitamin C and in healthy
subjects
> (25 12 vs. 39 13 mg/24 hours). A significant increase in mean
> Tiselius index was observed in calcium stone-forming patients
after 1 g
> (1.43 0.70 vs. 0.92 0.65) or 2 g vitamin C (1.61 1.05 vs.
0.99
> 0.55) and in healthy subjects (1.50 0.69 vs. 0.91 0.46).
> Ancillary analyses of spot urine obtained after vitamin C were
performed in
> 15 control subjects in vessels with or without
ethylenediaminetetraacetic
> acid (EDTA) with no difference in urinary oxalate between them
(28 23
> vs. 26 21 mg/L), suggesting that the in vitro conversion of
ascorbate to
> oxalate did not occur. CONCLUSION: These data suggest that
vitamin C
> supplementation may increase urinary oxalate excretion and the
risk of
> calcium oxalate crystallization in calcium stone-forming
patients.
>
> Publication Types:
> Clinical Trial
> Controlled Clinical Trial
>
> Relationship Between Vitamin C Intake and Increased Risk of
Oxalosis
> The Secondary Oxalosis of Renal Failure
> by Catherine S. Thompson et al.
>
> The secondary oxalosis syndrome associated with renal failure is
an
> important, although incompletely understood, complication of
renal
> insufficiency. The deposition of calcium oxalate crystals in
vital organs
> can be associated with significant morbidity and mortality. The
> pathophysiology of this disorder relates to supersaturation of
the blood
> with the insoluble calcium salt of oxalate. The factors which
aggravate the
> hyperoxalemia in individuals with renal failure are only now
becoming
> evident. Although no effective prevention or treatment exists in
the chronic
> setting, further investigation into the role of dietary protein
restriction,
> pyridoxine administration, and avoidance of ascorbic acid
supplementation in
> patients without a documented deficiency of the vitamin is
warranted.
>
> Seminars in Dialysis 1988; 1(2): 94-98
>
> Vitamin C Intoxication and Hyperoxalemia in Chronic Hemodialysis
Patients
> by Cesar Pru, John Eaton and Carl Kjellstrand
>
> We studied vitamin C levels in 25 stable patients on chronic
hemodialysis
> who were taking 0.5-1 g vitamin C orally daily and/or dialyzed
against
> dialysate containing 33.3 µg/ml of vitamin C. We also studied
the
> relationship between serum vitamin C and oxalate levels in 7
patients on
> chronic hemodialysis. All patients had markedly elevated pre-
and
> postdialysis levels of vitamin C. The predialysis levels of
vitamin C showed
> extremely good correlation to the serum oxalate levels.
Overingestion of
> vitamin C in food or as supplementation may lead to excessive
serum levels
> of vitamin C, resulting in hyperoxalemia that may contribute to
vascular
> disease in patients on chronic hemodialysis.
>
> Nephron 1985; 39:112-116
>
>
>
>
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