15 Nov 2023 --- Researchers caution that melatonin consumption by US children and adolescents is “exceedingly common,” while studies on the long-term use of the hormone in sleep supplements are lacking in this population. Through an online survey with parents, the researchers found that 18.5% of kids aged 5-9 and 19.4% of those aged 10-13 had used melatonin in the past 30 days. The youngest age group examined (one to four years old) had the lowest use of melatonin in the past 30 days, at 5.6%. However, this is still higher than an earlier study, which found that 1.3% of US parents reported that their kids used melatonin during 2017-2018.