The Surprising Link Between Zinc and Sleep Quality

Oct. 26, 2023 by Ava Green

The Surprising Link Between Zinc and Sleep Quality

Sleep, an essential component of our daily lives, profoundly impacts our health and well-being. While various factors influence sleep quality, recent research has shed light on a surprising element: dietary zinc.

A study by Yoan Cherasse and Yoshihiro Urade, titled "Dietary Zinc Acts as a Sleep Modulator," explores this intriguing connection.

Zinc: A Vital Trace Element

Zinc, a trace element found in various foods, plays a crucial role in numerous biological processes. It's involved in immune function, wound healing, DNA synthesis, and cell division. But its role doesn't end there; emerging evidence suggests that zinc also plays a pivotal role in regulating sleep.

The Connection Between Zinc and Sleep

The study delves into the mechanisms by which zinc may influence sleep patterns. Zinc is known to interact with neurotransmitters and receptors in the brain that are involved in the sleep-wake cycle. Additionally, zinc levels in the body have been found to fluctuate throughout the day, with a notable increase during sleep.

Clinical and Experimental Evidence

The article reviews various clinical studies and experimental evidence that support the role of zinc in sleep regulation. For instance, zinc supplementation has been shown to improve sleep quality and increase sleep duration in both humans and animal models. These findings suggest that adequate zinc intake might be essential for optimal sleep.

Implications for Health and Diet

Given the importance of sleep for overall health, understanding the role of dietary zinc could have significant implications. It opens up the possibility of using zinc supplementation as a natural and safe way to improve sleep quality. However, as with any dietary supplement, it's essential to approach zinc supplementation with caution and under professional guidance.


The study by Cherasse and Urade offers a fascinating glimpse into the complex interplay between diet and sleep. It underscores the importance of considering nutritional factors in sleep regulation and opens up new avenues for research and potential therapeutic interventions.

Source: NCBI - PMC