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TRC 500
by Douglas Labs
250 Capsules
Timed-Release Antioxidant And Immune Support*
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TRC 500, by Douglas Laboratories, provides 500 mg of Vitamin C in each timed-release capsule. FUNCTIONS
Vitamin C (ascorbic acid) has numerous biological functions. Foremost, it is essential for the synthesis of collagen and glycosaminoglycans, which are the building materials of all connective tissues (such as skin, blood vessels, tendons, joint cartilage and bone). Vitamin C is the required coenzyme for two groups of enzymes that catalyze the crosslinking of collagen fibers, lysyl hydroxylases and prolyl hydroxylases. As such, vitamin C is essential for normal wound healing and capillary health.* Vitamin C participates in the biosynthesis of carnitine, serotonin, and certain neurotransmitters, including norepinephrine.* Vitamin C is among the most powerful antioxidants in humans and animals. It is a water-soluble, chain-breaking antioxidant that reacts directly with superoxide, hydroxyl radicals, and singlet oxygen. Laboratory studies show that vitamin C completely protects lipids in plasma and low-density lipoproteins (LDL) against atherogenic peroxidative damage. In addition, vitamin C interacts with glutathione and alphalipoic acid, and regenerates vitamin E. The antioxidant functions of vitamin C appear to have clinical significance in providing protection from free radical damage to the eyes, lungs, blood and the immune system.* Research has also demonstrated ascorbic acid’s ability to positively affect function of the immune system by optimizing synthesis of integral components of our immunological defenses.* Vitamin C is absorbed in the small intestine by a sodium-dependent transport process that is intake dependent. At normal dietary intakes of 60 to 100 mg, up to 80 or 90% of the vitamin C is absorbed. At higher intakes, absorption becomes less efficient. Absorption efficiency and vitamin C utilization may be greatly enhanced during conditions of physiological stress, such as trauma or infection.*
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NOTE: Special Order Product Product - Special Shipping Required
This is a Special Order Product. We stock this in low quantities, due to low-to-moderate sales volume. If the product is on hand, we will ship immediately. If we are out of stock at the time of your order, we will order directly from the manufacturer, on your behalf. This could add an additional 2 to 5 business days to your delivery time. |
Supplement FactsServing Size: One (1) Capsule
Servings Per Container: 250 | | | | Amount
Per Serving | Daily
Value | Vitamin C
(Ascorbic Acid)
In a base designed to provide prolonged activity | 500 mg | 833% | |
** Daily Value Not Established. Percent Daily Values are based on a 2,000 calorie diet. |
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| Cellulose, Gelatin Capsule, Water |
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| As a dietary supplement, one (1) capsule daily or more as directed by a physician. |
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| Store in a cool, dry place. ... Keep out of reach of children. ... Tamper resistant package, do not use if outer seal is missing. |
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| This product contains NO yeast, wheat gluten, soy protein, milk/dairy, corn sodium, sugar, starch, artificial coloring, preservatives or flavoring. |
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| Free Radicals, Immune System Support |
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| Immune System |
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Allard JP, Aghdassi E, Chau J, et al. Effects of vitamin E and C supplementation on oxidative stress and viral load in HIV-infected subjects. Aids 1998;12:1653-9. Anderson JW, Gowri MS, Turner J, et al. Antioxidant supplementation effects on low-density lipoprotein oxidation for individuals with type 2 diabetes mellitus. J Am Coll Nutr 1999;18:451-61. Campbell JD, Cole M, Bunditrutavorn B, et al. Ascorbic acid is a potent inhibitor of various forms of T cell apoptosis. Cell Immunol 1999;194:1-5. de la Fuente M, Ferrandez MD, Burgos MS, et al. Immune function in aged women is improved by ingestion of vitamins C and E. Can J Physiol Pharmacol 1998;76:373-80. Del Rio M, Ruedas G, Medina S, et al. Improvement by several antioxidants of macrophage function in vitro. Life Sci 1998;63:871-81. Hughes DA. Effects of dietary antioxidants on the immune function of middle-aged adults. Proc Nutr Soc 1999;58:79-84. Paolisso G, Tagliamonte MR, Rizzo MR, et al. Oxidative stress and advancing age: results in healthy centenarians. J Am Geriatr Soc 1998;46:833-8. Park E, Wagenbichler P, Elmadfa I. Effects of multivitamin/mineral supplementation, at nutritional doses, on plasma antioxidant status and DNA damage estimated by sister chromatid exchanges in lymphocytes in pregnant women. Int J Vitam Nutr Res 1999;69:396-402. Schwager J, Schulze J. Modulation of interleukin production by ascorbic acid. Vet Immunol Immunopathol 1998;64:45-57. Simon JA, Grady D, Snabes MC, et al. Ascorbic acid supplement use and the prevalence of gallbladder disease. Heart & Estrogen-Progestin Replacement Study (HERS) Research Group. J Clin Epidemiol 1998;51:257-65. |
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Our Price: $25.90 |
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