Additional side effects include stomach cramps, dizziness, headache, irritability, decreased libido, breast enlargement in men (called gynecomastia), and reduced sperm count.
摘自
https://www.umm.edu/health/medical/altmed/supplement/melatonin
Other related articles
https://www.ncbi.nlm.nih.gov/pubmed/12065466
https://www.livestrong.com/article/232169-the-effects-of-melatonin-on-reproductive-functions/
For men, breast enlargement (gynecomastia) and reduced sperm count are also possible.
from https://draxe.com/melatonin-dosage/?
