Melatonin

Does melatonin work?

Overall Effectiveness Rating for Melatonin

The overall effectiveness rating for melatonin is 2.1 out of 3. This rating means there is some evidence that using melatonin may lead to positive results. This rating also means that some evidence does not back up all claims. Below you can find individual ratings for specific claims.

Overall Confidence Rating for Melatonin

There are 14 studies in the database on melatonin; the confidence rating is 47. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating. Note, this rating is for melatonin as a whole. There are also individual ratings for the claims below.

Products Containing Melatonin

There are 7 products in the database containing Melatonin. Follow the link to see the full list.

Individual Claims

The overall ratings above do no necessarily reflect each claim about melatonin. Individual claims can have higher or lower ratings. For example, some supplements may have a lot of backing for one claim, but be completely useless for another. Click on claims below for more information.

Performance Claims Effectiveness Rating Confidence Rating
improve sports performance
increase strength

Hormone Function Claims Effectiveness Rating Confidence Rating
increase levels of growth hormone
increase testosterone
decrease levels of somatostatin (growth hormone inhibiting hormone)

Mental Health Claims Effectiveness Rating Confidence Rating
improve cognitive ability

General Health Claims Effectiveness Rating Confidence Rating
increase bone density
increase total sleep time
improve sleep quality