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Potassium and Magnesium Powder
£17.45Directions: a food supplement, stir half a level teaspoon into water or juice and drink once daily, or as directed by your healthcare professional.
Potassium Magnesium Citrate
Price range: £7.95 through £18.20Directions: As a food supplement, take one to three capsule daily with food, or as directed by your healthcare professional.

