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#1
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Vitamin C is good for your dog
New Forms and New Uses in Dogs
L. Phillips Brown, D.V.M. The common wisdom is that humans, other primates, guinea pigs, and a few birds need to get vitamin C in their diets. Since the rest of the animals produce it within their own bodies, they no doubt make enough, right? Well, maybe not. In this article, a doctor of veterinary medicine looks at the effects of vitamin C supplementation in dogs and its benefit in fighting arthritis, and other ailments. Dogs of all ages suffer with various joint and spinal disorders, including hip dysplasia, osteoarthritis, non-specific arthritis, osteochrondritis, spondylitis and spondylosis. Treatment often consists of rest. surgery and/or steroids, nonspecific anti-inflammatory drugs (NSAIDS), aspirin, penicillamine or methotrexate. Many therapeutic compounds produce only short-term benefits and may actually accelerate the progression of joint destruction. Nutritional Considerations Vitamin C is a vital nutrient in bone and cartilage metabolism. Although dogs, unlike humans, can manufacture their own vitamin C, they may not produce enough to counter the effects of aging, stress, inherited dysfunctions, environmental irritants and poor quality or high fat pet foods. In fact, early studies in dogs and horses suggest that daily vitamin C supplementation might be beneficial in reducing chronic inflammation. Unfortunately; ordinary vitamin C may cause gastrointestinal upsets i dogs. A form of vitamin C that would promote higher levels of intracellular ascorbic acid without negative side effects would be a useful and unique product. Clinical Study The effect of different forms of vitamin C on various locomotor dysfunctions of dogs were investigated by veterinarians at The Best Friends Animal Sanctuary in Utah. Over 100 case studies were evaluated, using varying strengths and combinations of mineral ascorbates, ascorbic acid and microcrystalline cellulose during a six-month period. The results indicate that a patented vitamin C ascorbate / vitamin C metabolite complex, administered orally, may have application for the reduction of discomfort associated with nonspecific, chronic inflammatory disorders of dogs. The vitamin C ascorbate / metabolite complex used in the study was Ester-C. Product Background According to the manufacturer, Inter-Cal Corporation, of Prescott, Arizona, Ester-C is a patented ascorbate supplement containing calcium ascorbate, naturally occurring dehydroascorbate and the vitamin C metabolite, threonate. Threonate permits ascorbate to be more rapidly absorbed from the gastrointestinal tract, to cross cell membranes more efficiently, reach higher cellular levels and be excreted more slowly than ordinary vitamin C. Ester-C ascorbate is pH neutral and believed to be water and partially fat soluble. Mechanism Of Action Vitamin C may act as an immunoresponsive and chrondrogenerative agent. In degenerative (i.e., aging) or inflammatory conditions, collagen breakdown is excessive, resulting in joint discomfort and skeletal changes. A product that would provide high and prolonged levels of ascorbic acid would help compression resistance of cartilage, mobilized white blood cells to the site of inflammation, and enhance prostaglandin synthesis. The net result would be increased comfort and mobility. Conclusion 78 percent of the study dogs receiving Ester-C calcium ascorbate showed improved mobility within four to five days. The consistency and degree of response demonstrated that Ester-C calcium ascorbate provided symptomatic relief to the study dogs suffering from selected chronic joint and musculoskeletal disorders. The findings that the condition of many of the "improved" dogs deteriorated rapidly upon discontinuance of Ester-C ascorbate further verified its usefulness as primary or adjunctive therapy. These studies reinforced the earlier observations that supplemental Ester-C calcium ascorbate corrected mobility problems of dogs and horses. The findings suggest that, although dogs can manufacture endogenous ascorbic acid, the amount produced my not be sufficient to prevent or counteract stresses associated with aging, injury or joint malpositioning. From the results of this study, there is significant evidence to recommend oral Ester-C calcium ascorbate in the management of non-specific musculoskeletal disorders of dogs. References Adkins, T. O. and Kronfield, D.S.: Diet of racing sled dogs affects erythrocyte depression by stress. Canadian Vet. J., 23:260-3, 1982 Allen, T.A., and Hand, M.S.: Conditionally Essential Nutrients. Proc. 8th ACVIM Forum, pp. 809-811, 1990 Belfield, W.O.: Chronic subclinical scurvy and canine hip dysplasia. Veterinary Medicine/Small Animal Clinician, 1399-1401, 1976 Berg, G.E.: Polyascorbate (C-Flex), and interesting alternative by problems in support and movement apparatus in dogs. Norwegian Veterinary Journal 102:579-581, 1990 Dockter, C unpublished data. Donoghue, S., Kronfeld, D.S. and Banta, C.A.: A possible vitamin C requirements in racing sled dogs fed a high fat diet, In: Nutrition Malnutrition and Diet in Dogs and Cats ed. by meyer, H and Kienzle, E. pp. 110-114, Hanover, Tierarztliche Hochschule, 1988. Fay, M.J.: Possible effect of ascorbic acid metabolites on the cellular uptake of ascorbic acid and other compounds. A dissertation for degree of Doctor of Philosophy, University of Mississippi, 1992 Goodman, S., Vitamin C; The Master Nutrient, Keats Publishing, Inc. Connecticut, 1991 Kronfeld, D.S.: Stress supplements: Protein and vitamin C, Purebred Dogs / Kennel Gazette, 100.10:8-9. 1983 Lewis, D.L., Morris, Jr. M.L., and Hand, M.S.: Small Animal Clinical Nutrition Mark Morris Assoc., Kansas, 1990 Newman, N.L., unpublished data. Smith, C.: Moro on vitamin C, Natural Pet, Vol2, No. 6:18-19, 1993 Stein, D.: Natural Healing for Dogs and Cats, The crossing press, California, 1993 |
#2
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Yes, let us all feed our canines additional vitamin C so their kidneys and
livers work overtime. Let's all send our dogs to an earler death!!!! "WalterNY" wrote in message om... New Forms and New Uses in Dogs L. Phillips Brown, D.V.M. The common wisdom is that humans, other primates, guinea pigs, and a few birds need to get vitamin C in their diets. Since the rest of the animals produce it within their own bodies, they no doubt make enough, right? Well, maybe not. In this article, a doctor of veterinary medicine looks at the effects of vitamin C supplementation in dogs and its benefit in fighting arthritis, and other ailments. Dogs of all ages suffer with various joint and spinal disorders, including hip dysplasia, osteoarthritis, non-specific arthritis, osteochrondritis, spondylitis and spondylosis. Treatment often consists of rest. surgery and/or steroids, nonspecific anti-inflammatory drugs (NSAIDS), aspirin, penicillamine or methotrexate. Many therapeutic compounds produce only short-term benefits and may actually accelerate the progression of joint destruction. Nutritional Considerations Vitamin C is a vital nutrient in bone and cartilage metabolism. Although dogs, unlike humans, can manufacture their own vitamin C, they may not produce enough to counter the effects of aging, stress, inherited dysfunctions, environmental irritants and poor quality or high fat pet foods. In fact, early studies in dogs and horses suggest that daily vitamin C supplementation might be beneficial in reducing chronic inflammation. Unfortunately; ordinary vitamin C may cause gastrointestinal upsets i dogs. A form of vitamin C that would promote higher levels of intracellular ascorbic acid without negative side effects would be a useful and unique product. Clinical Study The effect of different forms of vitamin C on various locomotor dysfunctions of dogs were investigated by veterinarians at The Best Friends Animal Sanctuary in Utah. Over 100 case studies were evaluated, using varying strengths and combinations of mineral ascorbates, ascorbic acid and microcrystalline cellulose during a six-month period. The results indicate that a patented vitamin C ascorbate / vitamin C metabolite complex, administered orally, may have application for the reduction of discomfort associated with nonspecific, chronic inflammatory disorders of dogs. The vitamin C ascorbate / metabolite complex used in the study was Ester-C. Product Background According to the manufacturer, Inter-Cal Corporation, of Prescott, Arizona, Ester-C is a patented ascorbate supplement containing calcium ascorbate, naturally occurring dehydroascorbate and the vitamin C metabolite, threonate. Threonate permits ascorbate to be more rapidly absorbed from the gastrointestinal tract, to cross cell membranes more efficiently, reach higher cellular levels and be excreted more slowly than ordinary vitamin C. Ester-C ascorbate is pH neutral and believed to be water and partially fat soluble. Mechanism Of Action Vitamin C may act as an immunoresponsive and chrondrogenerative agent. In degenerative (i.e., aging) or inflammatory conditions, collagen breakdown is excessive, resulting in joint discomfort and skeletal changes. A product that would provide high and prolonged levels of ascorbic acid would help compression resistance of cartilage, mobilized white blood cells to the site of inflammation, and enhance prostaglandin synthesis. The net result would be increased comfort and mobility. Conclusion 78 percent of the study dogs receiving Ester-C calcium ascorbate showed improved mobility within four to five days. The consistency and degree of response demonstrated that Ester-C calcium ascorbate provided symptomatic relief to the study dogs suffering from selected chronic joint and musculoskeletal disorders. The findings that the condition of many of the "improved" dogs deteriorated rapidly upon discontinuance of Ester-C ascorbate further verified its usefulness as primary or adjunctive therapy. These studies reinforced the earlier observations that supplemental Ester-C calcium ascorbate corrected mobility problems of dogs and horses. The findings suggest that, although dogs can manufacture endogenous ascorbic acid, the amount produced my not be sufficient to prevent or counteract stresses associated with aging, injury or joint malpositioning. From the results of this study, there is significant evidence to recommend oral Ester-C calcium ascorbate in the management of non-specific musculoskeletal disorders of dogs. References Adkins, T. O. and Kronfield, D.S.: Diet of racing sled dogs affects erythrocyte depression by stress. Canadian Vet. J., 23:260-3, 1982 Allen, T.A., and Hand, M.S.: Conditionally Essential Nutrients. Proc. 8th ACVIM Forum, pp. 809-811, 1990 Belfield, W.O.: Chronic subclinical scurvy and canine hip dysplasia. Veterinary Medicine/Small Animal Clinician, 1399-1401, 1976 Berg, G.E.: Polyascorbate (C-Flex), and interesting alternative by problems in support and movement apparatus in dogs. Norwegian Veterinary Journal 102:579-581, 1990 Dockter, C unpublished data. Donoghue, S., Kronfeld, D.S. and Banta, C.A.: A possible vitamin C requirements in racing sled dogs fed a high fat diet, In: Nutrition Malnutrition and Diet in Dogs and Cats ed. by meyer, H and Kienzle, E. pp. 110-114, Hanover, Tierarztliche Hochschule, 1988. Fay, M.J.: Possible effect of ascorbic acid metabolites on the cellular uptake of ascorbic acid and other compounds. A dissertation for degree of Doctor of Philosophy, University of Mississippi, 1992 Goodman, S., Vitamin C; The Master Nutrient, Keats Publishing, Inc. Connecticut, 1991 Kronfeld, D.S.: Stress supplements: Protein and vitamin C, Purebred Dogs / Kennel Gazette, 100.10:8-9. 1983 Lewis, D.L., Morris, Jr. M.L., and Hand, M.S.: Small Animal Clinical Nutrition Mark Morris Assoc., Kansas, 1990 Newman, N.L., unpublished data. Smith, C.: Moro on vitamin C, Natural Pet, Vol2, No. 6:18-19, 1993 Stein, D.: Natural Healing for Dogs and Cats, The crossing press, California, 1993 |
#3
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"WalterNY" wrote in message om... The effect of different forms of vitamin C on various locomotor dysfunctions of dogs were investigated by veterinarians at The Best Friends Animal Sanctuary in Utah. Over 100 case studies were evaluated, using varying strengths and combinations of mineral ascorbates, ascorbic acid and microcrystalline cellulose during a six-month period. The results indicate that a patented vitamin C ascorbate / vitamin C metabolite complex, administered orally, may have application for the reduction of discomfort associated with nonspecific, chronic inflammatory disorders of dogs. The vitamin C ascorbate / metabolite complex used in the study was Ester-C. According to the manufacturer, Inter-Cal Corporation, of Prescott, Arizona, Ester-C is a patented ascorbate supplement containing calcium ascorbate, naturally occurring dehydroascorbate and the vitamin C metabolite, threonate. Threonate permits ascorbate to be more rapidly absorbed from the gastrointestinal tract, to cross cell membranes more efficiently, reach higher cellular levels and be excreted more slowly than ordinary vitamin C. Ester-C ascorbate is pH neutral and believed to be water and partially fat soluble. While I agree that Vitamin C and other antioxidants are important for dogs, I disagree with the idea that Ester-C has any advantages one way or the other over any other form of vitamin C. It is curious that the Utah research never made it to peer reviewed publication anywhere, at least that I can find. In contrast the following published study clearly shows Ester-C had no different effect than other forms of ascorbic acid. Res Vet Sci. 2001 Aug;71(1):27-32. Pharmacokinetics in dogs after oral administration of two different forms of ascorbic acid. Wang S, Berge GE, Hoem NO, Sund RB. Department of Pharmacology, School of Pharmacy, University of Oslo. The dog is able to synthesise ascorbic acid (AA), but is frequently given the vitamin in an attempt to improve health and performance. The pharmacokinetics of AA in this species, however, are not well studied. Using a selective analytical method and careful stability control, the pharmacokinetics of orally given AA was studied in 20 dogs, at two dosage levels (15 and 50 mg kg(-1)) and with two forms of supplement [crystalline AA and the vitamin C product Ester-C(Inter-Cal Corp., Prescott, AZ, USA)]. After oral administration, a rapid increase was found in the plasma level of AA, indicating a possible intestinal active transport mechanism in this species. The obtained C(max)and AUC values were found to increase in a non-linear fashion when the dose of AA was increased. The pharmacokinetic modeling of the elimination of AA was made difficult by a pronounced secondary peak appearing after about 9 hours. The comparison of crystalline AA and Ester-C did not indicate any significant differences in pharmacokinetic parameters between the two preparations of the vitamin. Copyright 2001 Harcourt Publishers Ltd. |
#4
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"rzwodzwo4228" wrote in message . ..
Yes, let us all feed our canines additional vitamin C so their kidneys and livers work overtime. Let's all send our dogs to an earler death!!!! If only it worked that way! You ought to learn a bit more before you speak so ignorantly. Vitamin c is water soluble, and does not overload either organ. In fact vitamin C boost levels of glutathione in the liver. In other words, it is a great antioxidant and helps the liver make appropriate antioxidants. And with kidney dysfunction, Vitamin C helps the kidneys to recycle and retain nutrients in the body properly. in fact some of the special processed diets designed for kidney disease actually have additional vitamin C supplementation for improved kidney function. You and your dogs eyes are the second largest organs in your body to use vitamin C. It's antioxidant function in the eyes is key to proper eye function. |
#5
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"Steve Crane" wrote in message news:64u0c.6344$Pc.1773@okepread02...
Steve the reason I would suggest that particular form of Vitamin C has to do with upsetting the stomach. Ascorbic C is detrimental to the stomach lining of a dog with continual use. I use the calcium based version of the vitamin and have for twenty years with great success. As for the study it did not measure biological effect of vitamin C with long-tern use but simply absorption, distribution in the body and excretion of the vitamin. Take a look at what it studied: "The dog is able to synthesize ascorbic acid (AA), but is frequently given the vitamin in an attempt to improve health and performance. The pharmacokinetics of AA in this species, however, are not well studied." In other words dogs are often given AA supplementation because it is beleived to improve the health of a dog but the process of absorption is not well known. That statement has little to do with how it works in the body but merely how it gets to were it goes. Also what you didn't post, which I looked up was the fact that this study was sponsored by a Ester C manufacturer to prove that Ester C is absorbed as well as a crystalline form. It really had little scientific merit but was merely a study to show that a product worked. Not saying you tried to hide anything. |
#6
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For tens and tens of thousands of years the canine has existed, multiplied,
evolved and spread all over the world with the manufacture of its own vitamin C. Now you come along with your 'snake oil' esther C asking us to put yet another unneeded chemical into our pets' system, as even the finest of dogfoods have more then enough questionable additives. Dude, fess up: You are a quack. You should be ashamed. Donate your vitamin C to the millions of starving humans in the third world. "WalterNY" wrote in message om... "rzwodzwo4228" wrote in message . .. Yes, let us all feed our canines additional vitamin C so their kidneys and livers work overtime. Let's all send our dogs to an earler death!!!! If only it worked that way! You ought to learn a bit more before you speak so ignorantly. Vitamin c is water soluble, and does not overload either organ. In fact vitamin C boost levels of glutathione in the liver. In other words, it is a great antioxidant and helps the liver make appropriate antioxidants. And with kidney dysfunction, Vitamin C helps the kidneys to recycle and retain nutrients in the body properly. in fact some of the special processed diets designed for kidney disease actually have additional vitamin C supplementation for improved kidney function. You and your dogs eyes are the second largest organs in your body to use vitamin C. It's antioxidant function in the eyes is key to proper eye function. |
#7
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Wow you are an angry person who speaks from ignorance. Shame. You
ought to learn abit more about how you and your dogs body works. Perhaps then you will not be such a victim. |
#8
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Steve the reason I would suggest that particular form of Vitamin C has
to do with upsetting the stomach. Ascorbic C is detrimental to the stomach lining of a dog with continual use. I use the calcium based version of the vitamin and have for twenty years with great success. That makes sense and is a logical reason. I don't know how many dogs get the typical Rolaids acid stomach, but there is some value and logic to that idea, and certainly no harm. |
#9
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That makes sense and is a logical reason. I don't know how many dogs get the
typical Rolaids acid stomach, but there is some value and logic to that idea, and certainly no harm. Although if you new how many humans have serious health problems exasperated by such things as Rolaids. |
#10
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WalterNY wrote: That makes sense and is a logical reason. I don't know how many dogs get the typical Rolaids acid stomach, but there is some value and logic to that idea, and certainly no harm. Although if you new how many humans have serious health problems exasperated by such things as Rolaids. Indeed that is very true. I definitely know of two persons. Gwen |
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