Quercetin: what is it for and in what foods is it found
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Quercetin is a type of flavonoid that gives color to certain foods of vegetable origin and is found in various fruits and vegetables, such as manzana, cherries, onions, peppers, capers, among others.
The consumption of foods rich in quercetin is an excellent way to stimulate and strengthen the immune system, as it is an antioxidant compound that eliminates the free radicals of the organism, so it prevents damage to the cells and DNA and can, therefore, , prevent the appearance of cancer or the emergence of chronic diseases.
In addition, foods considered functional due to the presence of quercetin have anti-inflammatory and antihistamine action that help protect against heart disease and alleviate some symptoms of allergic problems, such as nasal secretion, hives and sore lips.
what is it for
Quercetin is widely used to prevent the appearance of various health problems, which is why it can be used for the following purposes:
- Strengthen the immune system;
- Eliminate the accumulation of free radicals in the organism;
- Lowering “malo” (LDL) cholesterol levels;
- Decrease the probabilities of having a heart attack or stroke;
- Reduce the symptoms of food or respiratory allergies.
Likewise, quercetin can also be used to help prevent the development of cancer or to complement the clinical treatment of various types of cancer, as it is capable of improving the immune system.
List of foods rich in quercetin
| Food (100 g) | quantity of quercetin |
|---|---|
| capers | 180 mg |
| yellow pepper | 50.63 mg |
| Buckwheat | 23.09 mg |
| onion | 19.36 mg |
| Arándano | 17.70 mg |
| Manzana with cascara | 4.42 mg |
| red grape | 3.54 mg |
| broccoli | 3.21 mg |
| canned cherries | 3.20 mg |
| lemon | 2.29 mg |
There is no recommended dose for the daily amount of quercetin; however, it is suggested not to exceed 1 g of quercetin per day, as it can cause kidney damage, contributing to the appearance of renal failure, for example.
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