The Claim
Commercially available melatonin dietary supplements demonstrate substantial label inaccuracies, with measured melatonin concentrations varying from 74% to 347% of the labeled dosage, and a subset of products containing no detectable active ingredient.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Many over-the-counter melatonin pills don't actually contain the amount of melatonin listed on the bottle. In fact, some have way more, some have way less, and a few don't have any melatonin at all.
See the scientific wording
Commercially available melatonin supplements frequently exhibit significant label inaccuracies, with actual melatonin content ranging from 74% to 347% of the stated dosage, and some products containing zero detectable active ingredient.
What the research says
1 studyThe study tested 31 melatonin supplements and found that most did not contain the amount of melatonin listed on the label, with some having way too much or way too little. This proves that supplement labels are often inaccurate.
Related videos
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.