Alka Calm by Professional Complimentary Health Formulas ( PCHF ) 8 oz Recommended DosageAs a nutritional supplement take 1 level teaspoon twice daily. For best results, place in tepid water and let dissolve. Cool to taste.IndicationsAn easy to absorb, water-soluble form of magnesium and potassium for supplementing these minerals. Useful for buffering the body's systems and alleviating symptoms associated with magnesium / potassium deficiencies.Each tsp contains Calories 7 Vitamin C (L-ascorbic acid) 75 mg Riboflavin (vitamin B2) 10 mcg Magnesium (as malate/citrate/ascorbate/lactate reacted from magnesium carbonate and citric/ascorbic acids) 200 mg Potassium (as citrate/malate/tartrate/aspartate/ascorbate reacted from potassium bicarbonate and citric/ascorbic acids) 150 mg