Does quercetin help with high blood pressure?

Lebensmittel mit Quercetin

Quercetin is a yellow plant pigment from the flavonol group. It's classed as an antioxidant and is thought to have several health-promoting effects. As with many substances, though, the dose makes the poison in high doses quercetin can be toxic.

It occurs naturally in many fruits and vegetables, especially in the skins; peeled produce has a lower content than unpeeled. Growing methods also seem to affect quercetin levels. For tomatoes, fruits from organic farming were found to contain 79 % more quercetin than those from conventional farming.

Foods high in quercetin include capers, lovage, onions particularly the outer rings chives, apples, kale, as well as broccoli and green beans. Red grapes also contain the pigment, mainly in the skin. That's why quercetin is present in red wine, which is a problem for some people who get headaches even from one glass. Researchers consider the quercetin in wine a possible trigger because it may slow the breakdown of alcohol.

Does quercetin help lower high blood pressure?

In a 2020 meta-analysis researchers looked at 17 randomized trials with a total of 896 participants fairly small numbers in the individual studies. These trials ran between 2 and 12 weeks, with participants receiving 30 – 1000 mg of quercetin daily. One of the outcomes examined was blood pressure. On average it did decrease: systolic by 3.09 mmHg and diastolic by 2.86 mmHg.

However, the researchers note that the studies included in the meta-analysis were very heterogeneous and recommend further investigation of quercetin's effects.

Earlier studies reviewed in a 2016 meta-analysis did not show consistent effects on blood pressure.

Conclusion:

Quercetin may lower blood pressure to a small extent. However, study results are inconsistent, so more research is needed to reliably demonstrate an effect.

Interesting:

A study published in September 2024 looked at the effect of quercetin on kidney function in people with high blood pressure. It included data from more than 5,800 people with hypertension. The results show that a high intake of quercetin is very likely protective for kidney function in people with hypertension. Urinary microalbumin was significantly lower in participants who consumed a lot of quercetin than in the hypertensive control group. Mortality was also lower in the quercetin group over the 10-year follow-up.

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Does quercetin help with high blood pressure?

Does quercetin help lower high blood pressure?

Conclusion:

Interesting:

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