Taking Ashwagandha or melatonin daily for two months is generally safe for healthy adults with mild sleep problems, with side effects being rare and mild, similar to taking a placebo.
Evidence from Studies
No evidence studies found yet.
What Would Prove This
Per GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this claim, ordered from strongest to weakest.
Whether Ashwagandha and melatonin, alone or combined, are associated with a low risk of serious adverse events across diverse populations and longer durations (>6 months).
A systematic review and meta-analysis of all published RCTs and cohort studies (n≥10,000 total participants) evaluating Ashwagandha (300–600 mg/day) and melatonin (1–5 mg/day) for sleep, reporting incidence of serious adverse events, hepatotoxicity, endocrine disruption, or drug interactions over ≥6 months.
That Ashwagandha and melatonin are safe for 12–24 weeks in adults with mild sleep disturbance, including those with comorbid conditions.
A multicenter, double-blind RCT with 500 participants aged 18–60, randomized to Ashwagandha (600 mg/day) + melatonin (3 mg/day) or placebo for 24 weeks, with monthly safety labs (liver, kidney, cortisol), vital signs, and adverse event monitoring.
Whether long-term use of Ashwagandha and melatonin is associated with increased risk of endocrine, hepatic, or psychiatric adverse events in real-world settings over 1–5 years.
A prospective cohort study of 5,000 adults aged 18–60 using Ashwagandha and/or melatonin for sleep, matched with non-users, tracking hospitalizations, lab abnormalities, and psychiatric diagnoses via electronic health records over five years.
Whether use of Ashwagandha or melatonin is associated with rare adverse events such as hepatotoxicity or hormonal imbalance in clinical practice.
A case-control study comparing 200 adults with clinically confirmed hepatotoxicity or adrenal suppression to 800 matched controls, assessing prior use of Ashwagandha and melatonin over the prior 12 months.
Whether individual cases of severe adverse events (e.g., liver injury, arrhythmia) are temporally associated with Ashwagandha or melatonin use.
A registry of all published case reports of severe adverse events temporally linked to Ashwagandha or melatonin use, with detailed clinical, laboratory, and temporal data to assess plausibility.