After doing some research, I found that magnesium lactate is the cheapest, most bioavailable, and the supplement with fewer side effects. For example, orotate,

After doing some research, I found that magnesium lactate is the cheapest, most bioavailable, and the supplement with fewer side effects. For example, orotate, taurate, malate, glycinate, and others can give you extra amino acids and you can overdose or break the balance.