This has changed my overall health so much. Most people are deficient in magnesium & it can cause SO MANY health problems. This helps calm your central nervous system & helps you get better quality of sleep. It helps with PMS, it helps with body aches, joint aches, anxiety, depression, and energy levels. 2 pills are 300 mg which is what it says on the bottle but I take 4 pills to get 600 mg. The suggested dosage is great for supplemental use but for therapeutic reasons I take more. LTKfamily LTKunder50 LTKFitness