Search results
Results from the WOW.Com Content Network
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 ...
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]
Iron is a mineral that is crucial for optimal health and well-being. Found naturally in many foods and dietary supplements, it is a key component of hemoglobin, the part of red blood cells ...
It has been demonstrated that myricetin, depending on its concentration, displays different oxidizing effects on DNA. Polyphenols like myricetin are able to reduce (donate electrons to) Fe 3+. Thus, this reaction yields a less oxidized (more reduced) form of the iron cation: Fe 2+ and a less reduced (more oxidized) form of myricetin. [1]
Others, such as some polyphenols and flavonoids, may be pro-oxidants in high ingested amounts. [ 23 ] Non- digestible dietary fibers from plant foods, often considered as a phytochemical, [ 24 ] are now generally regarded as a nutrient group having approved health claims for reducing the risk of some types of cancer [ 25 ] and coronary heart ...
Home & Garden. Medicare. News
Mainly found in the fruit skins and seeds, high levels of polyphenols may reflect only the measured extractable polyphenol (EPP) content of a fruit which may also contain non-extractable polyphenols. Black tea contains high amounts of polyphenol and makes up for 20% of its weight.
Phytic acid has a strong affinity to the dietary trace elements, calcium, iron, and zinc, inhibiting their absorption from the small intestine. [1] [34] Phytochemicals such as polyphenols and tannins also influence the binding. [35] When iron and zinc bind to phytic acid, they form insoluble precipitates and are far less absorbable in the ...