Vitamin C is an antioxidant that is essential for optimal health. However, it is not found at useful levels in cooked animal foods.
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The most prevalent category of antioxidants found in plants are flavonoids. They are virtually ubiquitous in plant-based diets.
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Catechins are a family of flavanols, the most abundant of which are (+)-catechin and epicatechin.
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Hesperidin is present almost exclusively in citrus fruits, especially oranges and lemons.
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Plant foods are rich in a diverse group of antioxidants called flavonoids. Common flavonoids include quercetin.
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Generally speaking, dietary fiber is defined as parts of plants that cannot be digested in the upper digestive system.
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The richest sources of beta-glucan are the bran in oats and barley. Lower amounts of beta-glucan are found in other whole-grain cereals like sorghum.
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Pectin may promote the growth of beneficial bacteria in the colon. They may also help ease chronic diarrhea and moderate blood sugar levels after meals.
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