NATROL ACIDOPHILUS PROBIOTIC DIETARY SUPPLEMENT PROMOTES A HEALTHY DIGESTIVE SYSTEM BY SUPPLYING "FRIENDLY" BACTERIA TO YOUR GUT. EACH 100-MG. CAPSULE CONTAINED 1 BILLION LIVE CULTURES AT THE TIME OF MANUFACTURING. FOR OPTIMAL RESULTS, TAKE ONE CAPSULE THREE TIMES DAILY A HALF HOUR BEFORE MEALS. BE SURE TO CONSULT YOUR HEALTHCARE PROVIDER BEFORE USING IF YOU HAVE A MILK ALLERGY. THIS BOTTLE CONTAINS 150 ACIDOPHILUS PROBIOTIC CAPSULES.