Magnesium has been shown to:
help quite down thoughts that go round in your mind,
help regulate hormones that have a calming effect on the brain,
support immune system function,
and, relax muscles.
You can take a supplement to add more magnesium (Mg) to your diet. Mg in the form of magnesium chelate is well absorbed. Take it at night before bed. Also, it's best to take Mg and zinc separately.
Or you can add Mg-rich foods to your daily diet....
Foods high in Mg are: Green vegetables Animal products Legumes/beans Nuts/seeds Bananas Raw cacao Potatoes
Our diet is high in these foods, but we tend to take a powder supplement a couple times a week as insurance (I always get a better night's sleep when I do - not waking up in the middle of the night with thoughts about all the things I need to do the next day).