my-cart-icon svg-arrow-next svg-arrow-prev


Supplement to promote healthy vasodilation and blood pressure while enhancing cognitive function.


Supplement to promote healthy vasodilation and blood pressure while enhancing cognitive function.

Nobel Prize-winning research has led to a deeper understanding of the important role played by the simple molecule nitric oxide (NO) which is known to influence many of our most basic health processes, including cognitive learning, immune function, and healthy blood vessel tone.


Dr. Peter D'Adamo:

"Studies of NO release are hampered by the short half-life of the molecule. Depending on the particular tissue it interacts with, the molecule may remain intact for only a few fractions of a second. However, it is this ephemeral quality that makes NO the outstanding signaling molecule that it is. This was best indicated by the Society of American Chemists, who proclaimed NO its 'Molecule of the Year' for 1992. "  


In our bodies, nitric oxide functions as a signaling molecule that may:

  • Influence cognitive function
  • Help maintain blood pressure levels that are already normal
  • Promote healthy immune and nervous system response


Studies show that consuming beetroots can raise nitric oxide levels. When we eat nitrates from plants, our body converts them to nitric oxide, which has been shown to have several benefits, such as regulating blood pressure and improving circulation. Beetroots do this due to their being a rich source of nitrates. However, the effects only last for several hours following their consumption, and the effects are often only seen in healthy subjects.

Dr. Peter D'Adamo:

"Evidence suggests that consuming beetroot and beetroot products while taking a targeted NO enhancing supplement produce the greatest results with exercise conditioning, immunity, and cardiovascular health. "  


Beets are a very useful food in the Blood Type Diets and are one of the few foods rated either ‘beneficial’ or ‘neutral’ for all ABO secretor and non-secretor types. Beetroot supplementation appears to be generally safe, with few reported adverse effects.

Dr. Peter D'Adamo:

"I formulated Nitricycle by blending together botanicals with the amino acid L-Arginine which is an essential precursor of nitric oxide. This unique blend helps to maintain healthy blood vessel tone thus making it popular for athletes and exercise enthusiasts. There is some evidence that blood types B and AB may benefit more from Nitricycle although it is good for all types."  


Gynostemma pentaphyllum Formula Synergist
Citrulline Prime Mover
L-Arginine Prime Mover
Dragon’s Blood Croton (Croton lechleri) Prime Mover
Salvia miltiorrhiza (Danshen) Prime Mover
Panax quinquefolius (American ginseng) Formula Synergist
Cordyceps sinensis Formula Synergist

Prime mover: An agent that is essential to the therapeutic effect of the formula. Formula Synergist: An agent that enhances the effectiveness of the prime mover agents.

Nitricycle is produced in the USA and is a GMP (Good Manufacturing Practices) quality assured and certified product as outlined by the Natural Products Association and is suitable for all blood types.

  • 60 vegetarian capsules
  • Suggested Use: One (1) capsule two times daily as a dietary supplement or as directed by a physician
  • Is this product vegetarian? Yes
  • Usable by all types? Yes

    This 100% vegetarian product contains no sugar, salt, gluten, wheat, yeast, corn, soy, eggs or dairy, no preservatives, color or flavors, and no artificial ingredients.


  1. McFadzean J, Tasker RC, Petros AJ. Nitric oxide ABO blood group difference in children. Lancet 1999 Apr 24;353(9162):1414-5
  2. Burnett AL. Nitric oxide control of lower genitourinary tract functions: a review. Urology 1995 Jun;45(6):1071-1083.
  3. Jung HC, Mun KH, Park TC, Lee YC, Park JM, Huh K, Seong DH, Suh JK.Role of nitric oxide in penile erection. Yonsei Med J 1997 Oct;38(5):261-269
  4. Feldman PL et al. The surprising life of nitric oxide. C&EN, 1993;20:26-38.~Kim YM et al. Inhibition of protein synthesis by nitric oxide correlates with cytostatic activity: nitric oxide induces phosphorylation of initiation factor eIF-2 alpha. Mol Med, 1998;4(3):179-90
  5. Wascher TC, Graier WF, Dittrich P, Hussain MA, Bahadori B, Wallner S, Toplak H. Effects of low-dose L-arginine on insulin-mediated vasodilatation and insulin sensitivity. Eur J Clin Invest 1997 Aug;27(8):690-695.
  6. Baliga MS, Katiyar SK. Chemoprevention of photo carcinogenesis by selected dietary botanicals. Photochem Photobiol Sci. 2006;5(2):243-53.
  7. Blumert M, Jialiu L. Jiaogulan: China’s “Immortality” Herb. Badger, CA: Torchlight Publishing. (2003) pp. 66–70 ISBN 1-887089-16-0.
  8. Attele AS, Wu JA, Yuan CS. Ginseng pharmacology: multiple constituents and multiple actions. Biochem Pharmacol. 1999; 58(11):1685-1693.
  9. Kelly GS. Nutritional and botanical interventions to assist with the adaptation to stress. Alt Med Rev. 1999; 4(4):249-265.
  10. Chin Med. 2006 Nov 23;1:3
  11. Ran, Y, Wang, R. Dragon’s blood its extracts attenuate radiation-induced oxidative stress in mice. J Radiat Res. 2014 Jul 55(4): 699-706
  12. Jones, K. Review of Sangre de Drago (Croton lechleri) – A south American Tree Sap in the Treatment of Diarrhea, Inflammation, Insect Bites, Viral Infections, and Wounds: Traditional Uses to Clinical Research. J of Alternative and Complementary Med. 2004 July 9(6): 877-896


60 vegetarian capsules
Suggested Use: 1 capsule twice daily

Is this product vegetarian? Yes

Practitioner Technical Information

Must login as a practitioner to have access.

Nitricycle TRM

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Related Products