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Dietary Supplements

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Overview

Dietary supplements include vitamins, minerals, amino acids, and other substances taken to supplement the diet. Melatonin is a commonly used supplement for sleep regulation.

How do dietary supplements work?

Mechanisms vary by supplement. Melatonin, for example, acts on MT1 and MT2 receptors in the suprachiasmatic nucleus to regulate the circadian sleep-wake cycle.

Drugs in this class

  • Melatonin (Natrol Melatonin, Nature Made Melatonin)

Frequently asked questions