Can I take Melatonin with Quercetin?

Understanding the interactions, benefits, and safety of combining these two powerful supplements.

Melatonin
+
Quercetin

Short answer

We found no documented interaction between Melatonin and Quercetin in the sources below. That isn't proof the combination is right for you: check each one's cautions, and ask your pharmacist if you take medication.

Melatonin

What it is: A hormone the brain makes in the dark that helps set your sleep-wake clock.

What the research says: It may help with jet lag and some circadian sleep problems. Sleep-medicine guidelines say there isn't enough evidence to recommend it for chronic insomnia.

Cautions

  • Short-term use seems safe for most people; long-term safety isn't known.
  • Older adults may feel drowsy the next day.

Medicines to check

  • Blood thinners and epilepsy: use only under medical supervision

Source: NIH National Center for Complementary and Integrative Health: Melatonin: What You Need To Know (updated May 2024)

Quercetin

What it is: A plant compound found in apples, onions and tea; the most common flavonoid in the diet.

What the research says: It hasn't been shown to treat any disease. Its anti-inflammatory effects come from lab studies; in athletes, any performance benefits were small.

Cautions

  • No side effects were seen in athletes taking about 1,000 mg a day, but it hasn't been studied enough to know it's safe.

Medicines to check

  • Some prescription drugs processed by the liver: it may increase their side effects (lab data)
  • Losartan (a blood-pressure drug) and tamoxifen: animal or lab data only

In Holitro: Quercetin (500 mg per capsule)

Sources: Memorial Sloan Kettering Cancer Center, About Herbs: Quercetin (updated October 2023); NIH Office of Dietary Supplements: Dietary Supplements for Exercise and Athletic Performance (updated March 2021)

Check with your doctor or pharmacist, especially if you take medication.

Check your stack — free

Educational information only, not medical advice. This reflects general ingredient overlap, not a personalized safety review. Always check with your doctor or pharmacist before combining supplements, especially if you take medication, are pregnant or nursing, or manage a health condition. These statements have not been evaluated by the FDA.

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