Flora Probiotic Blends Are Tailored To Meet Your Needs. The Type And Amount Of Probiotic Bacterial Strains Needed For Best Results Will Change At Different Stages Of Life And Under Different Health Conditions.* All 7 Blends Of Flora's Probiotics Use Only Medicinal Strains Of Friendly, Probiotic Bacteria. By Using The Right Probiotic Supplement, You Can Take A Proactive Approach To Maintaining Gastrointestinal Wellbeing, A Core Foundation Of Overall Good Health.* Flora Probiotic Blends Are Best Taken After Meals. All Of The Bacterial Strains Chosen Have Been Specially Developed And Tested For Their Gastric Resistance.* Unlike The Live Bacterial Content Of Many Foods Being Marketed Today, The Probiotic Strains In Udo's Blends Are Able To Survive The Stomach Acids To Reach The Intestinal Tract At Full Potency.*