What is the most common side effect of melatonin? Understanding melatonin's effects and safety
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4 min read
According to a 2022 survey, over 27% of U.S. adults have reported taking melatonin, often unaware that the most common side effect of melatonin is daytime drowsiness or a 'melatonin hangover'. This lingering fatigue, along with headaches and dizziness, can occur even with appropriate use, especially if the dosage is too high.