Flavonoids are a large family of widely distributed plant substances formerly designated as vitamin F. They are a subgroup of a larger class of molecules called phenols. These compounds are often pigments and occur in high concentrations in all fruits, especially citrus fruits; purple berries and apples; as well as in vegetables, including onions; tea; and whole grains.
Many flavonoids occur as glycosides in foods, and both flavonoids structure and the type of sugar moiety determine their primary site of absorption.
Flavonoids are found to inhibit oxidation and decrease platelet aggregation in vitro. This observation has stimulated a number of epidemiologic studies to examine the relationship between dietary intake of flavones and risk of CHD.
Many experts suspect that the French are less vulnerable to heart disease because they consume more red wine. Presumably the protective effect is the result of the flavonoids in red wine, which protect against oxidative damage from LDL cholesterol.
In a freshly squeeze cranberry juice, 400 mg of total flavonoid and phenolics per liter of sample was found, 56% of which were flavonoids.
What are flavonoids?
What does the term "diet" mean? The definition of a diet as the complete oral consumption of nutrients and non-nutritive substances is comprehensive yet lacks specificity. It is defined by the typical composition and allocation of nutrients and foods ingested by an individual or a specified group.
Friday, February 23, 2018
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