Journal: 88% of melatonin gummies tested in study mislabeled

If you take melatonin gummies to help you sleep, you might want to keep reading.

COLUMBIA, S.C. (CNN)— If you take melatonin gummies to help you sleep, you might want to keep reading.

The Journal of the American Medical Association (JAMA) published a research letter Tuesday where researchers tested 25 products labeled as melatonin gummies at an outside lab.

According to the researchers, 88% of the gummies tested were labeled inaccurately.

One of the products actually contained 347% more melatonin that what was listed on the label.

An expert says consuming a gummy with extremely high levels of melatonin can be dangerous and have side effects.

Researchers also found in their study that some of the products also contained CBD, which is found in cannabis.

According to the FDA, it is illegal to market CBD by adding it to a food or labeling it as a dietary supplement.