The Relationship Between Zinc and Sleep: What You Need to Know

The Relationship Between Zinc and Sleep: What You Need to Know


Zinc is an essential mineral that is important in various bodily functions, including immune system support, wound healing, and growth and development. But does zinc make you sleepy? This is a question that many people have been asking. In this article, we will explore the relationship between zinc and sleep.

Zinc and Sleep

While there is no direct evidence that suggests zinc causes drowsiness or makes you sleepy, there are a few ways in which zinc can indirectly affect sleep. For instance, zinc has been shown to have a calming effect on the body, which can help reduce stress and anxiety. Stress and anxiety are common culprits of sleep disturbances, so reducing them can help improve sleep quality.

Furthermore, zinc produces melatonin, a hormone that regulates sleep-wake cycles. Melatonin is synthesized in the pineal gland, and research suggests that zinc plays a role in converting serotonin to melatonin. Serotonin is a neurotransmitter that affects mood, appetite, and sleep, and it is converted to melatonin during periods of darkness to promote sleep. Therefore, zinc indirectly supports healthy sleep by aiding in melatonin production.

Zinc Deficiency and Sleep

Zinc deficiency is associated with various health problems, including sleep disturbances. Research has shown that low levels of zinc in the body can lead to decreased sleep quality, increased wakefulness, and daytime sleepiness. Zinc deficiency is also linked to sleep apnea, a disorder characterized by interrupted breathing during sleep.

Therefore, ensuring adequate zinc intake may help improve sleep quality, particularly for individuals deficient in this mineral. Zinc is found in various foods, including oysters, beef, pork, chicken, beans, nuts, and whole grains.

Zinc Supplementation and Sleep

While getting adequate zinc from your diet is important, some people may benefit from zinc supplementation. However, it is important to note that taking too much zinc can negatively affect sleep and overall health. The recommended dietary allowance (RDA) for zinc is 11 mg for adult men and 8 mg for adult women. In addition, taking more than 40 mg of zinc daily can lead to adverse effects, such as nausea, vomiting, and diarrhea.

Furthermore, there may be better ideas than taking zinc supplements before bedtime, as zinc can interfere with absorbing other minerals, such as copper and magnesium, that are also important for sleep. Therefore, taking zinc supplements during the day with food is best to avoid potential interactions.


In summary, while there is no direct evidence that zinc makes you sleepy, it may indirectly support healthy sleep by reducing stress and aiding in melatonin production. Zinc deficiency has been linked to sleep disturbances, so ensuring adequate zinc intake may help improve sleep quality. However, taking too much zinc can negatively affect sleep and overall health. Sticking to the recommended dietary allowance and taking zinc supplements with food during the day are important.

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George Hernandez

George specializes as a Nootropic Expert with a Ph.D. in Neuroscience and a BA in philosophy, George has an excellent understanding of the workings of the human brain. He also helps to synthesize several medical papers regarding the efficacy of nootropics. He also tested the most popular nootropic supplements on the market and is making transparent reviews on each of them on this website.

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