ALKA CALM Effervescent Magnesium Potassium blend formulated for maximum absorption, with natural Stevia, raspberry, and lemon flavors. One teaspoon provides: Magnesium 200 mg Potassium 150 mg Vitamin C (ascorbate) 75 mg Fiber 25 mg Riboflavin (Vitamin B2) 10 mcg Mix one teaspoon with water. 56 servings per container. 8 oz