Looks like it was within 10% of described for 71% of supplements (which sounds pretty okay) but there were some big outliers for the rest.
It also suggests the biggest variance was in mixed-supplement pills while pure melatonin pills were mostly within the normal range. Definitely good to know but I wouldn't worry too much if you are just getting basic pure melatonin from a well-known manufacturer.
Sure but if that's mostly the mix of supplements in one tablet versions. If you buy pure melatonin from a respected brand it's going to be a pretty high chance you are getting the right dose.
It also suggests the biggest variance was in mixed-supplement pills while pure melatonin pills were mostly within the normal range. Definitely good to know but I wouldn't worry too much if you are just getting basic pure melatonin from a well-known manufacturer.