Of all the supplements being discussed, this one is one of the more important ones. although it is very weak against depression. Magnesium is a limited NMDA antagonist, along with zinc.

TIP: One can swallow unscented epsom salt USP, one teaspoon per day, if they have a hard budget for supplements. a pound of Epsom satl UPS is a few dollars. There is instructions on the container on how much to take internally as a laxative. Less than this amount acts as a poor-man's magnesium supplement.