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Vitamin C and berry polyphenols support health and immunity

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Polyphenol-C: a new premium vitamin C for today provides wide-spectrum berry polyphenols

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In 1747 James Lind conducted one of the first placebo controlled clinical trials on record when he tested 6 groups of sailors suffering from scurvy, with six different treatment regimens. Only oranges, lemons and limes were effective. Thereafter, British ships began carrying barrels of limes (when available) to prevent scurvy. Thus, in ports and countries around the world the English came to be known as ‘Limeys’.

However it wasn’t until almost 200 years later in 1930, that Albert Szent-Gyorzi was awarded the Nobel Prize for the discovery of the nature of the vitamin C molecule. The name given to it, ‘ascorbic acid’ literally means ‘anti-scurvy’.

Since that time, vitamin C has become one of the most widely used supplements in the world. Though few people need it today for the prevention of scurvy (due to the wide availability of fruits in our diet), it’s taken for its numerous other benefits and essential functions in the human body. The Linus Pauling Institute lists some of these as: ‘an essential co-factor in numerous enzymatic reactions, e.g. the biosynthesis of collagen, carnitine and neuropeptides, and in the regulation of gene expression. It is also a potent antioxidant’ [1,2,3,].


Non-GMO vitamin C and polyphenols: the colors of health

Nature delivers vitamin C to us in the colorful packages of fruits and berries. The deep purples, blues and reds comprise the polyphenol components of these fruits: anthocyanins, proanthocyanidins, bioflavonoids and others.

These compounds enhance the role of vitamin C and are the most abundant source of antioxidants in our diets. Anthocyanins are the primary active forms found in fresh berries such as blueberries, blackberries, raspberries and strawberries. These compounds also play important roles as immune enhancers, in anti-inflammatory activity, cardiovascular support and many other health functions [4,5].


A unique synthesis of natural ingredients

The new Polyphenol-C product is the result of years of work by ENI into the sources and analysis of polyphenols. This includes the development of VinCare, ENI’s patented whole grape extract. VinCare was the subject of a clinical trial published in The Journal of Functional Foods​ that demonstrated its beneficial role in improved antioxidant status and cardiovascular support [6]. Other recent studies have pointed to potential mental acuity and brain support benefits of grape and blueberry polyphenols.

VinCare is a primary source of polyphenols in Polyphenol-C that also contains Cranberex, a highly concentrated cranberry extract containing cranberry’s unique A-Type proanthocyanidins (PAC’s) [7]. This ingredient was also the subject of a study at Rutgers University, showing its high level of beneficial activity. Other polyphenols in Polyphenol-C are sourced from blueberry, blackberry, raspberry and strawberry.

Cal Bewicke, CEO of ENI stated: "Today and for the future people are looking for improved immune and health support products. With Polyphenol-C we’ve made another step in bringing a more complete spectrum of nature’s ingredients into one product."

In the formula for Polyphenol-C, each gram contains 600mg of non-GMO vitamin C and 400mg of fruit extracts/concentrates standardized to 25% polyphenols (100mg total polyphenols). The product is available from ENI either as powder or packaged in vegetable capsules.

ENI is also the developer and supplier of other key ingredients such as: AlphaWave L-Theanine, a premium relaxant supported by clinical study, and GreenGrown Glucosamine, the leading patented, non-GMO, vegetable source glucosamine. 



[1]   Li, Y., & Schellhorn, H. E. (2007). New developments and novel therapeutic perspectives for vitamin C. J Nutr.​ 137, 2171-2184. [PubMed abstract]

[2]   Carr, A.C., & Frei, B. (1999). Toward a new recommended dietary allowance for vitamin C based on antioxidant and health effects in humans. Am J Clin Nutr 69:1086-107. [PubMed abstract]

[3]   Jacob RA, Sotoudeh G. Vitamin C function and status in chronic disease. Nutr Clin Care 2002;5:66-74.     [PubMed abstract]

[4]    Zafra-Stone, S. et al. (2007). Berry Anthocyanins as novel antioxidant in human health and disease prevention. Mol. Nutr. Food Res.​ 51, 675 – 683.

[5]    Bell, D.R., & Gochenaur, K. (2006). Direct vasoactive and vasoprotective properties of anthocyanin-rich extracts, J Appl Physiol​, 100 (4), 1164-70.

[6]   Evans, M., et al. (2014). A randomized, double-blind, placebo-controlled, pilot study to evaluate the effect of whole grape extract on antioxidant status and lipid profile. Journal of Functional Foods.​ 7. 10.1016/j.jff.2013.12.017.

[7]   Foo, L.Y., et al. (2000a). A-type proanthocyanidin trimers from cranberry that inhibit adherence of uropathogenic P-fimbriated Escherichia coli. J. Nat. Prod.​ 63, 1225–1228.

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