Is there a flavonoid supplement I can take?

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Yes but, unfortunately, too many and most with misleading claims or dubious recommendations due to high doses being potentially problematic. Flavonoids occur in plants and help ward off plant diseases. More than 4,000 flavanoids have been identified and found in our fruits, beverages (coffee, tea, beer, wine, etc.) and vegetables. Interest has grown regarding their potential benefits in human health such as effects on cardiovascular disease and cancer. But it’s far from certain on amounts and what types are needed. Additionally, unusual levels of flavonoids can interfere with the activity of many of our body’s enzyme systems and hormone metabolism -- mainly estrogen and thyroid hormones. Therefore we have no recommendation for a flavonoid supplement at this time.

But do eat your fruits and vegetables that contain flavanoids because you could never get too much from simply eating. As an example, people in the United States, Europe and Asia get ~5-70 milligrams of quercetin (the most widely sold flavone) from daily diet, but a common health food supplement recommends taking 1,000 milligrams in one pill, which is 10 to 20 times more than even a high dietary intake of quercetin. So eat your fruits and vegetables to get your proper flavonoid intake and take a good multivitamin and mineral formula for anything that you might miss from your daily diet.

Continue Learning about Dietary Supplements

Dietary Supplements

Whether you're visiting the drug store, grocery or natural food shop you'll likely find an aisle where there are jars and bottles of things for you to put in your body that are neither foods nor medicines. Ranging from vitamins an...

d minerals to fiber and herbal remedies, these supplements are not regulated in the same way as either food or medicine. Some of them are backed by solid research, others are folk remedies or proprietary cures. If your diet does not include enough of certain vitamins or minerals, a supplement may be a good idea. Natural treatment for conditions like constipation may be effective. But because these substances are unregulated, it is always a good idea to educate yourself about the products and to use common sense when taking them. This is even more true if you are pregnant or taking a medicine that may be affected by supplements.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.