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The terms flavonoid and bioflavonoid have also been more loosely used to describe non-ketone polyhydroxy polyphenol compounds, which are more specifically termed flavanoids. The three cycles or heterocycles in the flavonoid backbone are generally called ring A, B, and C. [ 2 ] Ring A usually shows a phloroglucinol substitution pattern.
Polyphenols (/ ˌ p ɒ l i ˈ f iː n oʊ l,-n ɒ l /) are a large family of naturally occurring phenols. [1] They are abundant in plants and structurally diverse. [1] [2] [3] Polyphenols include phenolic acids, flavonoids, tannic acid, and ellagitannin, some of which have been used historically as dyes and for tanning garments.
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 ...
Rhino pills and other non-prescription supplements aren’t regulated by the U.S. Food and Drug Administration (FDA) like medications are, and there’s rarely much science to back their claims.
On the contrary, research indicates that although polyphenols are antioxidants in vitro, antioxidant effects in vivo are probably negligible or absent. [3] [4] [5] By non-antioxidant mechanisms still undefined, polyphenols may affect mechanisms of cardiovascular disease or cancer. [6]
Steven R. Gundry (born July 11, 1950) is an American physician, low-carbohydrate diet author and former cardiothoracic surgeon. [1] [2] Gundry is the author of The Plant Paradox: The Hidden Dangers in "Healthy" Foods That Cause Disease and Weight Gain, which promotes the controversial and pseudoscientific lectin-free diet. [3]
Resveratrol (3,5,4′-trihydroxy-trans-stilbene) is a stilbenoid, a type of natural phenol or polyphenol and a phytoalexin produced by several plants in response to injury or when the plant is under attack by pathogens, such as bacteria or fungi.
The Lectin-free diet (also known as the Plant Paradox diet) is a fad diet promoted with the false claim that avoiding all foods that contain high amounts of lectins will prevent and cure disease. [1] There is no clinical evidence the lectin-free diet is effective to treat any disease and its claims have been criticized as pseudoscientific .