link it gaveYes, evidence suggests magnesium citrate can aid sleep by relaxing muscles, reducing anxiety, and calming the nervous system. Studies show it may improve sleep quality, reduce the time it takes to fall asleep, and boost melatonin. It is particularly effective for those with a magnesium deficiency, which is linked to poor sleep.
https://www.verywellhealth.com/magnesiu ... ep-7501514
not exactly Pub Med
The thing I have always failed to get info on is the actual lack of magnesium. There we got PubMed
Magnesium deficiency is extremely common, with approximately 45% to 50% of the U.S. population failing to meet the recommended daily intake. Globally, an estimated 2.4 billion people, or about 31% of the world's population, do not consume enough magnesium.
PubMed Central (PMC) (.gov)
+4
https://pmc.ncbi.nlm.nih.gov/articles/PMC6163803