Melatonin Metabolism
One of 108 insights in your Genomic Lifestyle Optimization Report.
How quickly your body clears melatonin determines whether you wake up groggy from a 1 mg supplement, or can take 5 mg and feel nothing the next morning. Slow metabolizers need lower doses and earlier timing. Fast metabolizers can afford more flexibility.
How your DNA shapes melatonin metabolism.
CYP1A2 is the same liver enzyme that clears caffeine, and it also clears melatonin. Fast metabolizers (carriers of the CYP1A2*1F variant) break melatonin down quickly; slow metabolizers retain it longer. The same enzyme handles both, which is why the two systems sometimes interact in unexpected ways.
Carriers of CYP1A2 fast-metabolizer variants are associated with shorter melatonin half-life, and may find that standard immediate-release melatonin supplements wear off well before morning, producing a strong-but-short pattern. Carriers of slow-metabolizer variants are associated with longer melatonin presence and may experience grogginess from doses that work fine for fast metabolizers.
Extended-release melatonin formulations help bridge the gap for fast metabolizers; lower-dose immediate-release works better for slow metabolizers. Caffeine competes for the same enzyme. Late-day coffee in a slow metabolizer can disrupt melatonin clearance for hours. Cruciferous vegetables speed CYP1A2; certain medications (including some SSRIs and oral contraceptives) slow it.
The "melatonin doesn’t work for me" experience often isn’t about the molecule. It’s about form and timing. Which CYP1A2 variant you carry decides whether immediate-release or extended-release is the right starting point and how much to take.
In your report, Melatonin Metabolism is one dark card: a color marker set by your variants, the mechanism in plain language, and one practical next step.
Want to see real report pages? See the reports
Melatonin Production & Response: the 3-insight cluster.
Melatonin Metabolism is one finding in a tightly related cluster. Mosaic reads the other 2 alongside it, so you see the whole biology, not an isolated data point.
About Melatonin Metabolism.
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Read insightThis is one of 108. Your report reads all of them, from one cheek swab.
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