Benefits to the Body
Health Benefits of Concord Grapes
Research on Concord grape antioxidants indicates they do several things for the body:
Promote the flexibility of the arteries: Concord grape juice helps improve circulation and allows for the body to more easily increase blood flow when needed.6,7,8 This helps maintain a healthy blood pressure.
Assists in control of bad cholesterol metabolism: Preliminary studies have shown that the polyphenols in Concord grape juice may help to slow the oxidation of “bad” (LDL) cholesterol.9,10,11
- Helps maintain normal blood pressure: Two preliminary studies show that hypertensive people who added Concord grape juice to their diet were better able to maintain a healthy blood pressure.12,13
Cognitive changes happen as people age. Some of the same antioxidant polyphenols may have other functions as well. Preliminary studies on rats indicate that consumption of Concord grape juice helps maintain healthy cognitive levels.14
Eat the Color Wheel
Some dietary advice is to eat a variety of colors, and consume as much natural color as possible.15 Concord grape juice is one of the darkest fruits available, and one of the few purple colored plants (and we think it tastes much, much better than eggplant).
Growers’ 100% Concord Grape Juice
When comparing Growers’ 100% Concord grape juice with other retail purple grapes, look again at the antioxidant chart. Retail purple grape juices are a blend of Concord and white grape juices, which lowers the retail juice’s antioxidant level. There is nothing to reduce the antioxidants in our Concord grape juice.
6. Stein JH, Keevil JG, Wiebe DA, Aeschlimann S and Folts JD. Purple grape juice improves endothelial function and reduces the susceptibility of LDL cholesterol to oxidation in patients with coronary artery disease. Circulation. 1999. 100(10):1050-1055.
7. Chou EJ, Keevil JG, Aeschlimann S, Wiebe DA, Folts JD and Stein JH. Effect of ingestion of purple grape juice on endothelial function in patients with coronary heart disease. Am J Cardiol. 2001. 88(5):553-555.
8. Anselm E, Chataigneau M, Ndiaye M, Chataigneau T and Schini-Kerth VB. Grape juice causes endothelium-dependent relaxation via a redox-sensitive Src- and Akt-dependent activation of eNOS. Cardiovasc Res. 2007. 73(2):404-413.
9. Stein JH, Keevil JG, Wiebe DA, Aeschlimann S and Folts JD. Purple grape juice improves endothelial function and reduces the susceptibility of LDL cholesterol to oxidation in patients with coronary artery disease. Circulation. 1999. 100(10):1050-1055.
10. O'Byrne DJ, Devaraj, S. Grundy, SM. Jialal, I. Comparison of the antioxidant effects of Concord grape juice flavonoids and tocopherol on markers of oxidative stress in healthy adults. Am J Clin Nutr. 2002. 76:1367-1374.
11. Vinson JA, Yang J, Proch J and Liang X. Grape juice, but not orange juice, has in vitro, ex vivo, and in vivo antioxdant properties. J Med Food. 2000. 3(4):167-171.
12. Park YK, Kim J-S and Kang M-H. Concord grape juice supplementation reduces blood pressure in Korean hypertensive men: double-blind, placebo controlled intervention trial. Biofactors. 2004. 22(1-4):145-147.
13. Mark DA and Maki K. Concord grape juice reduces blood pressure in men with high systolic blood pressure. 2003. Presented at Experimental Biology 2003. April 11-15. San Diego, CA.
14. Tufts Nutrition magazine: http://nutrition.tufts.edu/docs/pdf/magazine/nutMAGspring06.pdf; accessed 4/14/09
15. The Color Code A Revolutionary Eating Plan for Optimum Health, by James Joseph, PhD, Daniel Nadeau, MD, and Anne Underwood, Hyperion Books, 2002.