Flavonoids: Benefits and Top Foods 2023

Flavonoids are various compounds found in fruits, vegetables, grains, bark, roots, stems, flowers, tea and wine. There are six different types of flavonoids found in food, and each type is broken down differently by your body.

Flavonoids have strong antioxidant properties and can protect your body from environmental pollutants. Increasing the amount of flavonoids in your diet is a terrific approach to support the health of your body and maybe lower your chance of developing some chronic health conditions.

Flavonoids Benefits

Flavonoids assist in controlling cellular function and shield our cells from potentially harmful chemicals known as free radicals. Simply put, they make your body work more effectively while safeguarding it against common pollutants and stresses.

Flavonoids are also strong antioxidant agents. Your body can be exposed to substances that could be toxic; antioxidants aid in the defense against these compounds. Antioxidants are produced naturally by your body and are also present in dark chocolate, lentils, and a variety of fruits and vegetables.

One of your body's immunological reactions is inflammation. Inflammation can be brought on by allergens, bacteria, toxins, and other irritants, which can cause unpleasant symptoms. Your body may be able to suppress that inflammatory response with the aid of flavonoids, which would lessen the symptoms.

Flavonoids May Have Blood Pressure-lowering Effect

The body can benefit from flavonoids in various ways. One strategy to treat high blood pressure is by include foods rich in flavonoids in your diet. A 2015 review found that at least five subtypes of flavonoids have a demonstrable effect in lowering high blood pressure.

Flavonoids May Lower Cardiovascular Disease

According in one study, flavonoid consumption was associated with lower risk of death from cardiovascular disease (CVD). Most inverse associations appeared with intermediate intakes, suggesting that even relatively small amounts of flavonoid-rich foods may be beneficial.

Flavonoids May Lower Type 2 Diabetes Mellitus Risk

A study suggests that higher intakes of total flavonoids and subclasses (anthocyanidins, flavan-3-ols, flavonols, and isoflavones) are associated with lower risk of type 2 diabetes mellitus (T2DM)

Top Foods High in Flavonoids

Increasing the amount of fruits and vegetables in your diet is the simplest approach to get more flavonoids because many plant foods are high in them. Some of the finest sources of dietary flavonoids are found in these foods:


Onions have been identified as one of the main dietary sources of flavonoids. Onions primarily include two types of flavonoids: anthocyanins, which give some varieties their red or purple color, and flavonols, including quercetin and its derivatives, which give many other varieties their yellow and brown skins.


Although flavonoids are present in many types of berries, some are more strong than others. Blackberries have all six types of flavonoids, making them exceptionally potent. All flavonoids are also present in raspberries, cherries, and other berries. Moderate levels of anthocyanidins are present in strawberries.

Red Cabbage

Red cabbage is a fantastic dietary source of anthocyanidins. Particularly, anthocyanidins have been investigated for their ability to prevent diabetes, cancer, cardiovascular disease, and age-related cognitive impairments.


High quantities of flavanols, which have been researched for their advantages to cardiovascular, are present in green, oolong, and black teas.

Red Wine

Red wine is a fantastic source of flavanols. Red wine has several health advantages when consumed in moderation, especially when it comes to reducing the risk of cardiovascular disease.

Dark Chocolate

Flavanol content is high in both cocoa and chocolate. Particularly cocoa has been investigated for its potential to improve cognitive function and preserve the cardiovascular system.

Citrus Fruits

Flavanones are found in citrus fruits like oranges, grapefruit, tangerines, lemons, and limes. These beneficial plant chemicals become even more concentratedly available when these fruits are juiced. In order to increase nutritious value, you can also squeeze some fresh lemon or lime juice into cold water.

Best Flavonoid Supplements

Quercetin, curcumin, silymarin, green tea extracts, and rutin are common flavonoid supplements.

A. Quercetin

Quercetin mostly present in onions, grapes, berries, cherries, broccoli, and citrus fruits. It is a powerful antioxidant flavonoid and more particularly a flavonol. Quercetin is thought to have a variety of positive impacts on health, including defense against conditions like osteoporosis, lung cancer, and cardiovascular disease.

1. Amazing Formulas Quercetin 500mg

- Antioxidant
Anti-oxidant properties of Quercetin supports healthy aging, cardiovascular health, and immune health. It helps to reduce the damage and irritation caused by free radicals

- Anti Inflammatory
Anti-Inflammatory properties of Quercetin helps to lower the release of histamines, a compound that is released by cells in response to allergic and inflammatory reactions. Subsequently helping to lower pains and discomfort related to Inflammation.

- Safety Checked
All Amazing Nutrition products are manufactured in accordance with Good Manufacturing Practices (GMP), among the highest standards in the world. All our products are proudly made in USA with Guaranteed Purity & Potency. We offer best quality products for the best value. All our products are Third Party Tested. We do not compromise on quality.

4.7 out of 5 - more than 29,500 global ratings

As we all became aware on the Viral Pandemia being lived for almost a year, read in several medical articles about the potential benefits of this flavonoid to prevent/mitigate the virus and ordered several of these for my family in other states. No side effects noted and we all feel fine. This does not replace Multivitamins which should be taken daily besides your regular medications.

2. Jarrow Formulas Quercetin 500 mg

- Supports Antioxidant Status
Quercetin is a phenolic antioxidant found in onions, green leafy vegetables, and fruits such as apples and cherries

- Cardiovascular Health
Quercetin supports cardiovascular health via its role in the inhibition of LDL oxidation

- Immune Health
Quercetin is an AllerTame flavonoid, i.e., one that may support immune health

- Veggie Caps
Take one veggie capsule per day with meals or as directed by your qualified healthcare professional

- Superior Nutrition and Formulation
The goal of Jarrow Formulas is to promote optimal health with high-quality, effective, affordable, and superior formulation of dietary supplements; Our customers can be assured of purity, value, and potency

4.7 out of 5 - more than 5,100 global ratings

Easy to take and was recommended by my doctor — a good value from a trusted company.

B. Curcumin

Curcumin is a flavonoid polyphenol that is the active ingredient in the spice turmeric. Curcumin has multiple health benefits which are best achieved when combined with agents that increase bioavailability such as piperine.

3. Nature's Nutrition Turmeric Curcumin with BioPerine

Turmeric Curcumin with BioPerine 1950mg - Natural Joint & Healthy Inflammatory Support with 95% Curcuminoids & Black Pepper for Maximum Potency & Best Absorption, Tumeric Supplement - 240 Capsules


- High Potency Turmeric Curcumin
Our premium T3 Turmeric Curcumin Complex 1950mg; with 95% standardized curcuminoids and 15mg BioPerine (black pepper) provides maximum potency; absorption and high bio-availability

- Effective Ingredients
Turmeric is arguably one of the most powerful herbs on the planet; Curcumin; is one of the primary compounds in turmeric powder; is a natural antioxidant; providing natural joint and healthy inflammatory support

- With Bioperine for Best Absorption
BioPerine; a patented black pepper extract; has been shown to improve the absorption of many herbs and spices; and provides as much as 2000x better absorption than consuming normal turmeric capsules alone

- Trusted Formula
Our Turmeric is formulated and manufactured in the USA following strict cGMP guidelines; Our Turmeric with BioPerine is third party tested to assure the quality and purity of each batch

4.6 out of 5 - more than 64,700 global ratings

This is my go to. I’m a firm believer in this for anti inflammatory benefits. At close to 60 years old, I have normal blood pressure, no arthritis or other inflammation problems. I take these with a tablespoon of cod liver oil and it works for me. I use to have inflammation issues but have fixed that over time with the help of Curcumin.

4. Garden of Life Turmeric Supplement

Supports the body’s healthy inflammatory function and antioxidant response. 100mg curcumin from organic whole turmeric root - plus ginger root - both fermented to support bioavailability. Probiotics & organic black pepper extract for enhanced digestion

Nutrients from real foods using water extraction & clean tablet technology with 100% organic & non-GMO tablet materials - no soy or corn-derived ingredients. Certified USDA Organic, Non-GMO Project Verified, NSF Certified Gluten Free, Certified Vegan & Kosher

4.7 out of 5 - more than 6,700 global ratings

I have an autoimmune disease that causes a great deal of inflammation in my joints. While this product is not a cure all, I have definitely noticed a significant reduction in inflammation in my joints and, as a result, a great deal of reduction in pain. It did not take very long for this to have an effect on my body either. I have been taking this supplement for about a week and noticed a difference within days. I have regained some range of motion in my hands & fingers because it reduced the inflammatory response.

C. Silymarin

Silymarin is a polyphenolic flavonoid derived from milk thistle (Silybum marianum). It consists of three phytochemicals, silybin, silidianin, and silicristin, and has a long tradition as an herbal remedy. (Source)

5. NOW Supplements, Silymarin Milk Thistle Extract

NOW Supplements, Silymarin Milk Thistle Extract

- Double Strength 
Double Strength Silymarin has twice the milk thistle extract (300 mg per capsule) as in our regular strength product (150 mg per capsule).

- With Additional Support
This vegetarian formula also includes artichoke and dandelion for additional support*

- Certification/Classification
Soy Free, Non-GMO, Vegan, Nut Free, Made without Gluten, Dairy Free, Egg Free, Halal, Kosher

- GMP Quality Assured
NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).

4.7 out of 5 - more than 2,400 global ratings

As an aging person I feel supporting the liver is an important issue to consider so I take this every day just to be supportive of liver function. NOW products are priced reasonably and seem to have a decent quality review as far as I can tell from reading many journals about alternative health supports.

6. Pure Encapsulations Silymarin Milk Thistle Extract Supplement

Pure Encapsulations Silymarin Milk Thistle Extract Supplement

- Liver Support
Silymarin is a highly concentrated milk thistle extract designed to nutritionally support normal liver function.*

- Protein Synthesis
Milk thistle extract also supports healthy protein synthesis in hepatic tissue on a cellular level.*

- Antioxidant Protection
This highly active botanical supports the liver, glutathione concentrations, and superoxide dismutase activity.*

- Pure Quality
Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity.

- Pure Difference
What makes us different isn't just our process or what goes into our supplements -- what we leave out matters, too. Pure Encapsulations products are FREE FROM wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives.

4.8 out of 5 - more than 600 global ratings

PURE ENCAPSULATIONS is hands down the best brand one can buy. I have been with them for 15plus years now, and they never disappoint. Their Milk Thistle has kept my liver healthy.

D. Green Tea Extract

Green tea contains polyphenols, which include flavanols, flavandiols, flavonoids, and phenolic acids. One study found that green tea extract can help improve blood pressure and cholesterol numbers.

7. Nature's Nutrition Green Tea Extract 98% Standardized EGCG

- Premium Green Tea Extract
Nature's Nutrition Premium Green Tea Extract contains a green tea blend (with 98% Egcg, Polyphenols and Antioxidants) for energy and immune support in Men and Women

- Powerful Antioxidant
The Antioxidants and Polyphenols in Green Tea combined exercise can help support natural energy and achieve goals

- All Day Energy
The combination of caffeine and L theanine in Green Tea has synergistic effects to provide gentle energy that lasts throughout the day

- Highly Concentrated Extract
Our Green tea extract is one of the highest concentrated formulas on the market, providing more of the amazing green tea benefits in each capsule

4.4 out of 5 - more than 4,300 global ratings

I use it primarily for the antioxidants along with my other supplements. Good value for the money, was delivered on time, and I'll buy it again.

8. Horbäach EGCG Green Tea Extract Pills

- Traditional Herb
Green Tea has been touted for centuries in Asian Traditions for its properties

- Potent Antioxidants
Standardized to contain 95% Polyphenols, 75% Catechins & 45% EGCG

- Expertly Crafted 
Our professional formula is backed by our commitment to purity and potency

- Horbaach Manufaturers
Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!

- Naturally Free Of
Gluten, Wheat, Yeast, Milk, Lactose, Soy, Artificial Color & Flavoring & NON-GMO

4.5 out of 5 - more than 3,000 global ratings

After watching an infomercial, I started taking Green Tea Extract, Digestive Enzymes, and Caralluma Fimbriata while dieting. As usual, my post menopausal body is very slow to lose weight. However, I am extremely pleased that the weight I am losing is in my waistline! Clothes fit better and I am very encouraged.

E. Rutin

Rutin is a unique antioxidant flavonoid that is mainly found in fruit, vegetables, cereals, and many other plant-based human diets. Rutin has been shown to have an extensive array of pharmacological applications due to its numerous properties including antioxidant, anti-inflammatory, cardiovascular, neuroprotective, antidiabetic, and anticancer activities. (Source)

9. NOW Supplements, Rutin

- Cell Defense*
Rutin is a bioflavonoid related to quercetin and hesperidin found in both citrus and non-citrus fruits, as well as other foods such as buckwheat. Rutin is a powerful combatant of free radicals and is best known for its role in vascular health.*

- Vegan Capsules/ Support Vascular Strength
Rutin helps to maintain the structural integrity of blood vessels, such as veins and capillaries.* Scientific studies suggest that it may help to support vascular function and promote healthy circulation.*

- Cetification/Classification
Soy Free, Vegan/Vegetarian, Nut Free, Non-GMO, Egg Free, Dairy Free, Made without Gluten

- GMP Quality Assured
NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).

4.6 out of 5 - more than 1,300 global ratings

very good and I can feel that it works well for inflammation

10. Nutricost Rutin Supplement

Nutricost's Rutin has 500mg of rutin in every capsule. Each bottle contains 180 vegetarian-friendly capsules. If taken according to recommended use, one bottle is a 6 month supply. These rutin capsules are non-GMO, gluten free, and tested by independent ISO accredited laboratories.

Capsule is easy to swallow, and they work.

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