In this study, researchers analyzed 30 melatonin supplements purchased from local grocery stores in Canada (one of the few countries, in addition to the United States, where melatonin is found). Available without a prescription). They tested to see how the amount of melatonin in the supplement matches the amount listed on the bottle.
Melatonin content was found to be highly variable between samples and quantities, with no discernible pattern between brand, supplement form, rated value, or presence of other herbal extracts. Read the study results section. The actual amount of melatonin ranged from -83% to +478% across the samples tested – which means some contained levels 478% higher than stated on the bottle (while others contained less melatonin than was promised in the Supplement facts (label).
“In addition, lot-to-lot variance within a given product varies as much as 465%,” adds Elaine Wermitr, FNP-BC, family and family nurse practitioner. spokesperson Better sleep.
“Terrify So” Christina Graham, registered nurse and Noom مدرب coachHe says of the eye-opening study, “Tests also found serotonin in 26% of the samples. Serotonin is more rigorously controlled and the presence of serotonin in high amounts can lead to serious side effects.”
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