Magnesium Glycinate (90 Capsules) by Jarrow Formulas is a dietary supplement in capsule form. Manufacturer Suggested Use: Adults take 3 capsules once a day with a meal or as directed by your qualified healthcare professional. Ingredients: Serving Size: 3 Capsules Amount Per Serving: Magnesium (as Magnesium Glycinate) ... 360 mg Other Ingredients: Capsule (hydroxypropylmethylcellulose) and magnesium stearate (vegetable source).