- flavones, derived from 2-phenylchromen-4-one (2-phenyl-1,4-benzopyrone) structure (examples: quercetin, rutin).
- isoflavonoids, derived from 3-phenylchromen-4-one (3-phenyl-1,4-benzopyrone) structure
- neoflavonoids, derived from 4-phenylcoumarine (4-phenyl-1,2-benzopyrone) structure.
The three flavonoid classes above are all ketone-containing compounds, and as such, are flavonoids and flavonols. This class was the first to be termed "bioflavonoids." The terms flavonoid and bioflavonoid have also been more loosely used to describe non-ketone polyhydroxy polyphenol compounds which are more specifically termed flavanoids, flavan-3-ols (or catechins) (2)."
"Foods Rich in Bioflavonoids
Fresh fruits and vegetables are generally the top choices for getting plenty of bioflavonoids in a diet. Here are some of the most popular ways to get the most of these helpful nutritional elements.
- Red Bell Peppers or Sweet Peppers – Red peppers contain three times more vitamin C than orange juice, according to some medical sources. Scientists agree that raw bell peppers are an effective way to get bioflavonoids into the system.
- Strawberries – These luscious red berries are a great source of bioflavonoids. Other berry types are similarly rich in these kinds of antioxidants. This leads to specific claims of health benefits for berry-made wines and derivative foods.
- Citrus Fruits – Oranges are a significant source of bioflavonoids. Lemons and limes, as well as peaches, nectarines and other fruits all contain vitamin C and bioflavonoid superoxidants.
- Broccoli – This green vegetable has a lot of vitamin C, as well as some other essential vitamins for a healthy diet. As with other foods, use broccoli raw for best results.
- Brussels Sprouts – For a hearty meal, include these cabbage type sprouts. Rich in antioxidants, they are also packed with their own unique taste for a delicious way to get bioflavonoids and vitamins.
- Tropical Fruits – Exotic fruits, like mangoes and papayas, have a lot of bioflavonoids and other nutritional elements packed under their skins. These are becoming more accessible at supermarkets everywhere. Don’t miss out on what they have to offer.
- Garlic – By most accounts, garlic is a superfood. Our food culture has long been aware of its anti-inflammatory properties, but now scientists are counting it as among the natural foods rich in bioflavonoids, and therefore able to deliver the antioxidant values we associate with “healing foods.”
- Spinach – Popeye wasn’t kidding: this stuff has all of the qualities you would associate with a green vegetable rich in antioxidants. Spinach is a good all-purpose nutrient – try it in place of lettuce for a salad that’s bursting with nutrition.
- Teas – Green tea and other teas are known to have a lot of powerful chemical elements that contribute to longevity and good health. Lots of health minded caffeine drinkers are switching from coffee to tea to get the effects of essential vitamins in their morning drinks.
Raw vs. Processed
These are just some of the top producing fruits and vegetables that deliver bioflavonoids and vitamin C to the table. Vitamin rich foods are always more effective in their raw form, so be aware of the difference between buying and using fresh produce, and eating these foods canned, cooked or processed. Overall, look for colorful, fresh fruits and vegetables to benefit from a diet that will contribute to your health in many ways (1)."