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Per The Post, resveratrol, a natural polyphenol found in dark berries, grapes, red wine, peanuts and pistachios, has been touted as a way to guard against cancer, heart disease and stroke.
[6] [7] Sources of resveratrol in food include the skin of grapes, blueberries, raspberries, mulberries, and peanuts. [8] [9] Although commonly used as a dietary supplement and studied in laboratory models of human diseases, [10] there is no high-quality evidence that resveratrol improves lifespan or has a substantial effect on any human ...
Proanthocyanidins are a class of polyphenols found in many plants, such as cranberry, blueberry, and grape seeds. Chemically, they are oligomeric flavonoids. Many are oligomers of catechin and epicatechin and their gallic acid esters. More complex polyphenols, having the same polymeric building block, form the group of condensed tannins.
The main source of polyphenols is dietary, since they are found in a wide array of phytochemical-bearing foods.For example, honey; most legumes; fruits such as apples, blackberries, blueberries, cantaloupe, pomegranate, cherries, cranberries, grapes, pears, plums, raspberries, aronia berries, and strawberries (berries in general have high polyphenol content [5]) and vegetables such as broccoli ...
Apples are a major source of fiber, and contain vitamin C and polyphenols, a type of phytochemical with a cholesterol-lowering effect, the Nutrients study notes. ... Daily grape intake can ...
"Red and purple grape juices may have some of the same heart-healthy pluses of red wine." Red wine contains resveratrol, which comes from the skin of grapes. There also are resveratrol supplements ...
Grape seed extract is sold as a dietary supplement. [6] The US National Center for Complementary and Integrative Health reported that oral administration of grape seed extract (dose and frequency unreported) was well tolerated in people over 14 weeks. [1] Side effects may include itchy scalp, dizziness, headache, and nausea. [1]
Procyanidin content in dietary supplements has not been well documented. [26] Pycnogenol is a dietary supplement derived from extracts from maritime pine bark that contains 70% procyanidins, and is marketed with claims it can treat many conditions.
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