Is it safe to take melatonin on a regular basis?

Melatonin, while useful for short-term sleep issues, requires caution for long-term use. Andrew Huberman notes potential risks like hormonal disruption and inconsistent supplement dosages. High doses in supplements may impact sleep and other hormone systems, and dosages often vary from labels. Long-term safety is unclear, and Dr. Huberman suggests consulting a healthcare provider and considering alternatives like magnesium or theanine. For the elderly, cautious use under medical advice is recommended 1 2 3 4 5 6.