What it does
A hormone involved in the timing of sleep and the body clock.
What symptoms can—and cannot—tell you
There is no established dietary deficiency syndrome for this specific botanical or compound. Symptoms are not evidence that you need this supplement.
Food sources
Foods are not a reliable substitute for assessment of sleep or circadian problems.
Supplement forms
Immediate-release melatonin; Timed-release / sustained-release melatonin; Sublingual melatonin
Before taking a supplement
Can cause sleepiness and interact with medicines. Discuss use in children, pregnancy or persistent sleep problems with a clinician.
Questions for your visit
Could my diet, medicines, absorption or another condition explain my concern? What evidence would support treatment, and how would we check whether it helps?
Names you may see
Melatonin
Sources & perspective
This is an editorial adaptation of the Purser Wellness nutrient reference app. Purser teaching connections are labeled separately from clinical interpretation. Private cases and individual treatment protocols are not reproduced.
The external resource below explains supplement safety; it does not validate every proposed use of this ingredient.
NCCIH: using dietary supplements wisely
