This claim looks at how much melatonin supplements people in the US have been taking over the last twenty years. It tracks whether usage has gone up, down, or stayed the same, without checking if the supplement actually works or is safe.

This claim simply tracks how often US adults have been taking melatonin supplements over the last twenty years. It looks at survey data to see how popular these supplements have become over time, without checking if they actually help or harm anyone's health.

This study only tracks how many US adults have been taking melatonin supplements and how those numbers have changed over time. It intentionally does not look at whether the supplements actually help or harm health, keeping the focus purely on tracking usage patterns for public health purposes.

When researchers study the safety of melatonin, mixing people who get it from a doctor with those who buy it over the counter can mess up the data. This mistake makes it look like the prescription version is more dangerous than it really is.

The amount of melatonin in store-bought sleep aids often doesn't match what's printed on the label. In fact, many pills contain way more or way less than advertised, making it hard to know exactly what dose you're actually getting.

A small test of 10 melatonin pills bought in the U.S. found that 4 of them had way more or way less melatonin than what was printed on the bottle — so you might not be getting what you think you're paying for.