The name quercetin may not sound familiar to you, but the possible benefits it offers will. This plant flavonoid is found in many types of seeds, flowers, fruits, and vegetables, and it has antioxidant properties. Antioxidants are known for protecting cells from the possible damage of free radicals. And while the claims about quercetin’s health benefits have limited scientific backing, some clinical studies have shown it’s capable of reducing inflammation, which can occur with many health conditions and diseases.
In addition to getting quercetin from eating a healthful diet that includes a variety of plant-based foods, it can be consumed in the form of supplements. Available in capsule, powder, and liquid forms, quercetin supplements are formulated with flavonoids, vitamins, and plant extracts. Although these supplements should never be taken in place of medical advice or prescribed medications, they may help ease various symptoms of different ailments by calming inflammation in the body.
There are a lot of quercetin supplements on the market. We are here to help with our top picks and our informative shopping guide.


What are flavonoids?
Flavonoids are molecules found in plants that benefit cells by strengthening them and protecting them from damage caused by free radicals. Most fruits and vegetables contain these compounds, which also give them their colors — yellow lemons, white onions, and red raspberries are some examples. Quercetin is one of these flavonoids, or plant pigments, that is rich in antioxidants.
Antioxidants vs. free radicals
In order to understand how taking a quercetin supplement may be beneficial to your health, it’s important to understand how antioxidants work.
Free radicals are molecules that can damage cells, potentially leading to numerous diseases, including cancer and heart disease. They form in the body as a result of the metabolic process, primarily when poor diets that consist of trans fats, processed foods, and excessive amounts of sugar are consumed. Environmental factors can also cause free radicals to develop, such as exposure to pollution, radiation, cigarette smoke, and various chemicals. A high level of free radicals in the body can lead to a process called oxidative stress, which in turn can lead to inflammation and various symptoms, ailments, and diseases.
One of the jobs of antioxidants is to tackle free radicals and reduce or eliminate their ability to cause cell damage. Antioxidants are found in numerous types of healthful foods, such as fruits, vegetables, grains, and seeds. They are also available in high concentrations in dietary supplements like quercetin.

