Compare supplements
Put up to three ingredients next to each other. See where the evidence, dosing, timing, and tradeoffs differ.
Evidence
Limited evidence
Common protocol300–1,000 mg/day——
Protocols mapped
2 goal-specific
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Timing
Once daily or divided; no proven special clock time
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Expected effect
About 2–6 weeks for blood NAD-metabolite changes
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Primary uses
Watch for
Nausea · Headache
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