The Powerful polyphenols
GRAPE POLYPHENOLS: THE BASIC ESSENTIALS
The most significant among the grape phytonutrients is a “family” of compounds called polyphenols. All grapes—red, green, and black—contain polyphenols. They are found in every part of the grape: the skin, the flesh, and the seeds.
Polyphenols promote antioxidant activity and influence cell-to-cell communications. Numerous studies suggest that polyphenols contribute to heart health, with emerging evidence suggesting that they may also play a role in healthy aging.
RESVERATROL: THE POLYPHENOL "PHENOM"
Resveratrol is something of a celebrity in the polyphenol family because it has garnered much scientific and media attention. Resveratrol is being studied throughout the world for a vast array of promising potential health benefits, including heart health and protection from certain cancers.
Grapes are one of the main natural dietary sources of resveratrol. All colors of grapes contain resveratrol, which is found in the grape skin.
Any time a phytonutrient gains attention, a supplement is sure to follow, and that is the case with resveratrol. There are no official recommendations as to an optimal “dose” of resveratrol, but food sources, such as grapes, are recommended over supplements.2 Additionally, grapes offer hundreds more natural plant compounds – including many other polyphenols – that may work together with resveratrol to offer potential health benefits.
2. Vang, O., Ahmad, N., Baile, C.A., Baur, J.A., Brown, K., Csiszar, A., Das, D.K., …Wu, J.M. (2011). What is new for an old molecule? Systematic review and recommendations on the use of resveratrol. PLoS ONE, 6(6) ,e19881. doi:10.1371/journal.pone.0019881
ABOUT California TABLE GRAPES
Californians have been cultivating grapes for more than two centuries. Today, 99 percent of U.S. table grapes are produced in California's warm, dry climate that is ideal for grape growing. With 80 grape varieties grown, California grapes come in three colors—green, red, and black—and are in season from May through January.