Cardiovascular Support

Price: $64.72

Cardiovascular Support

  • Optimize Flow of Blood and Oxygen to Peripheral Tissues
  • Helps Maintain Healthy Male Sexual Function
  • Supports Lean Body Mass/Athletic Performance
  • Supports Healthy Dilation of Blood Vessels
  • Supports the Healthy Flow of Blood and Oxygen to the Brain for Healthy Mood, Mind, and Memory

Cardiovascular Support is an exciting formula based on the latest Nobel Prize-winning research on nitric oxide, a naturally occurring compound in the body. Nitric oxide is an important messenger that signals a variety of responses at the cellular level which are beneficial to circulatory, immune, and nervous system functions. Cardiovascular Support is a refreshing, effervescent powder that offers therapeutic levels of L-arginine and L-citrulline, two amino acids the body uses to make nitric oxide.

All Arthritis Center Of Riverside® Formulas Meet or Exceed cGMP quality Standards


Nitric oxide (NO) is produced by various body cells from the amino acid L-arginine through the enzymatic action of nitric oxide synthase (NOS). NO has critical roles in regulating the function of organs and systems throughout the body. It is well known that NO production by vascular endothelium plays a critical role in blood flow regulation and that the abnormal production of NO can adversely affect blood flow, delivery of nutrients and oxygen, and other vascular functions.

L-Arginine is the principal substrate for the family of NOS enzymes that catalyze the biosynthesis of NO. Some of L-arginine's benefits include support of immune response, ammonia detoxification, growth hormone secretion (during rest), improved exercise performance (at 6 g/d), wound healing, reduced platelet aggregation, and vasodilation.  ADMA (asymmetric dimethylarginine) is a newly identified factor confronting cardiovascular health. As an endogenous NOS inhibitor, accumulation of ADMA impairs NO formation by competing with L-arginine for NOS binding. Under these conditions, supplementation with L-arginine may restore NO production to near-normal levels.  New research also suggests that ADMA accumulation in oxidized low-density lipoproteins (OxLDL) may signal vascular smooth muscle cell (VSMC) migration—which plays a critical role in the etiology of intimal thickening—and L-arginine markedly blocked ADMA-induced VSMC migration.

L-Citrulline is a precursor to L-arginine that readily permeates the intestinal wall and enters the bloodstream. L-citrulline is processed by the kidney, where it is converted to L-arginine; and oral L-citrulline supplementation in humans has been shown to increase plasma L-arginine availability for NO synthesis.  In an animal study, oral supplementation with "L-arginine, L-citrulline, and/or antioxidants (vitamins C and E) showed a marked improvement in endothelium-dependent vasorelaxation and blood flow, dramatic regression in atheromatous lesions, and decrease in superoxide production and oxidation-sensitive gene expression ..."

Quercetin A major flavonoid naturally occurring in plants, quercetin has been shown to down regulate inflammatory responses and provide neuroprotection.  Experimental models suggest that quercetin prevents the redox imbalance associated with decreased intracellular NO levels and superoxide overproduction, and it prevents the overexpression of inducible NOS (iNOS), which is associated with inflammatory pathology.

Folic Acid Research suggests that homocysteine may decrease the bioavailability of NO.  Therefore, folate's deleterious effect on homocysteine may provide the added benefit of increasing NO levels through enhancing NO bioavailability. Another role of folic acid in NO production relates to tetrahydrobiopterin (THBP, also known as BH4)—an essential cofactor for NOS. Folate deficiency may impair the synthesis of THBP, and 5-MTHF (bioactive folate) may normalize the activity of NOS in THBP-depleted endothelial cells.  In a placebo-controlled study of patients receiving 400 mcg/d of folic acid for seven weeks before coronary artery bypass grafting, improved vascular function was observed and attributed to improved availability of THBP for NOS and reduced vascular oxidative stress.

Vitamins C and E Free-radical injury reduces NO availability, and antioxidants appear to preserve NO. In addition, endothelial dysfunction is associated with increased oxidative stress, particularly increased superoxide production and elevated OxLDL, which can reduce endothelium-derived NO activity. Vitamins C and E administration can reduce both superoxide and OxLDL, thereby improving NO activity.  According to Heller et al, "The effect of alpha-tocopherol seems to be dependent on tissue saturation with ascorbic acid, and both vitamins may act synergistically to provide optimal conditions for endothelial NO formation.

Pour one sachet of powder into a tall, empty glass. Add 4 oz of chilled water and lightly stir. Let stand one minute. Add 4 more oz of chilled water and lightly stir. Let stand one minute and drink. Take one to two times daily, or as directed by your healthcare practitioner.

Consult your healthcare practitioner before use, especially if you are pregnant, nursing, or taking any medication. Do NOT use if you have low blood pressure. Keep out of reach of children.


1.  Boger RH. The pharmacodynamics of L-arginine. J Nutr. 2007 Jun;137(6 Suppl 2):1650S-55S. [PMID: 17513442]
2.  Bailey SJ, Winyard PG, Vanhatalo A, et al. Acute L-arginine supplementation reduces the 02 cost of moderate-intensity exercise and enhances high-intensity exercise tolerance. JApplPhysiol. 2010 Nov;109(5):1394-403. [PMID: 20724562]
3.  Sun L, Zhang T, Yu X, et al. Asymmetric dimethylarginine confers the communication between endothelial and smooth muscle cells and leads to VSMC migration through p38 and ERK1/2 signaling cascade. FEBS Lett. 2011 Sep 2;585(17):2727-34. [PMID: 21821030]
4.  Sureda A, Cordova A, Ferrer MD, et al. Effects of L-citrulline oral supplementation on polymorphonuclear neutrophils oxidative burst and nitric oxide production after exercise. Free Radio Res. 2009 Sep;43(9):828-35. [PMID: 19585317]
5.  Hayashi T, Juliet PA, Matsui-Hirai H, et al. I-Citrulline and l-arginine supplementation retards the progression of high-cholesterol-diet-induced atherosclerosis in rabbits. Proc NatlAcadSciUSA. 2005 Sep 20;102(38):13681-86. [PMID: 16157883]
6.  KaoTK, OuYC, RaungSL.etal. Inhibition of nitric oxide production by quercetin in endotoxin/cytokine-stimulated microglia. LifeSci. 2010 Feb27;86(9-10):315-21. [PMID: 20060843]
7.  Kostyuk VA, Potapovich Al, Suhan TO, et al. Antioxidant and signal modulation properties of plant polyphenols in controlling vascular inflammation. Eur J Pharmacol. 2011 May 11 ;658(2-3):248-56. [PMID: 21371465]
8.  Zhang ZJ, Cheang LC, Wang MW, et al. Quercetin exerts a neuroprotective effect through inhibition of the iNOS/NO system and pro-inflammation gene expression in PC12 cells and in zebrafish. IntJMolMed. 2011 Feb;27(2):195-203. [PMID: 21132259]
9.  Tawakol A, Forgione MA, Stuehlinger M, et al. Homocysteine impairs coronary microvascular dilator function in humans. J Am Coll Cardiol. 2002 Sep 18;40(6):1051-58. [PMID: 12354427]
10.  Crabtree MJ, Channon KM. Synthesis and recycling of tetrahydrobiopterin in endothelial function and vascular disease. Nitric Oxide. 2011 Aug 1;25(2):81-88. [PMID: 21550412]
11.  McCarty MF. Coping with endothelial superoxide: potential complementarity of arginine and high-dose folate. Med Hypotheses. 2004;63(4):709-18. [PMID: 15325022]
12.  Shirodaria C, Antoniades C, Lee J, et al. Global improvement of vascular function and redox state with low-dose folic acid: implications for folate therapy in patients with coronary artery disease. Circulation. 2007 May 1 ;115(17):2262-70. [PMID: 17420345]
13.  Carr A, Frei B. The role of natural antioxidants in preserving the biological activity of endothelium-derived nitric oxide. Free Radic Biol Med. 2000 Jun 15;28(12):1806-14. [PMID: 10946222]
14.  Heller R, Werner-Felmayer G, Werner ER. Alpha-Tocopherol and endothelial nitric oxide synthesis. Ann N Y Acad Sci. 2004 Dec;1031:74-85. [PMID: 15753135]

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, o
prevent any disease.   



© 2014
Arthritis Center of Riverside
11725 Slate Avenue
Riverside, CA  92505
Tel: 951.352.1700
Fax: 951.352.9117

Website Tags  Website Index  Logout


     *The information in this website is not intended to replace a rheumatology textbook nor be a complete update of the rheumatology scientific literature.  It should not be misconstrued as personal medical advice.  Rather, it portrays Dr. Al Robert Franco's interests in the field of rheumatology, namely, the interrelationship between infections and rheumatic diseases and how this applies to the treatment of arthritis.