Melatonin

Does melatonin work?

Melatonin Claims

The supplement database currently has 9 claims for Melatonin. The claims include: improve sleep quality, increase total sleep time, increase bone density, decrease levels of somatostatin (growth hormone inhibiting hormone), increase levels of growth hormone, increase strength, improve sports performance, increase testosterone, improve cognitive ability.

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 21 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 4 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.

The effectiveness rating for melatonin's ability to decrease levels of somatostatin (growth hormone inhibiting hormone) is 3 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about melatonin's ability to decrease levels of somatostatin (growth hormone inhibiting hormone).

Effectiveness Rating for this claim: 3 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for melatonin's ability to improve cognitive ability is 2 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about melatonin's ability to improve cognitive ability.

Effectiveness Rating for this claim: 2 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for melatonin's ability to improve sleep quality is 2.7 out of 3. The confidence rating for this claim is 60. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about melatonin's ability to improve sleep quality.

Effectiveness Rating for this claim: 2.7 out of 3

Confidence Rating for this claim: 60

The effectiveness rating for melatonin's ability to improve sports performance is 1 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about melatonin's ability to improve sports performance.

Effectiveness Rating for this claim: 1 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for melatonin's ability to increase bone density is 1 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about melatonin's ability to increase bone density.

Effectiveness Rating for this claim: 1 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for melatonin's ability to increase levels of growth hormone is 2.2 out of 3. The confidence rating for this claim is 120. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about melatonin's ability to increase levels of growth hormone.

Effectiveness Rating for this claim: 2.2 out of 3

Confidence Rating for this claim: 120

The effectiveness rating for melatonin's ability to increase strength is 1 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about melatonin's ability to increase strength.

Effectiveness Rating for this claim: 1 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for melatonin's ability to increase testosterone is 1 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about melatonin's ability to increase testosterone.

Effectiveness Rating for this claim: 1 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for melatonin's ability to increase total sleep time is 2.5 out of 3. The confidence rating for this claim is 120. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about melatonin's ability to increase total sleep time.

Effectiveness Rating for this claim: 2.5 out of 3

Confidence Rating for this claim: 120