They gave people with sleeping problems 75mg magnesium threonate or placebo for 21 days and tested their…

they gave people with sleeping problems 75mg magnesium threonate or placebo for 21 days and tested their sleep parameters with an oura ring every week.
the results?

I was honestly surprised.
placebo group had longer REM, deep sleep and Total sleep time.

In a profile of mood states, both group had lower fatigue, tension, depression and anger.