aSquared Nutrition’s maximum strength Magnesium Glycinate supplement provides 400mg per serving, with 180 tablets offering a full 90-day supply. This non-buffered, highly absorbable form of Magnesium supports bone, muscle, nerve, and cardiovascular health, promotes energy levels, digestion, relaxation, and normal sleep patterns, and may help reduce muscle aches, anxiety, and headaches. Now with smaller, easier-to-swallow tablets, this non-GMO, vegetarian supplement is made in the USA and third-party tested for purity, potency, and superior bioavailability.