OptiBac Probiotics Bifidobacteria And Fibre is a natural supplement containing selected microorganisms and fibres to help those with constipation. It can be taken once in a day for maintaining healthy bowel movements. Active, powerful ingredients Bifidobacterium lactis BB-12 a high-quality strain, to survive stomach acidity and biliary salts to reach the gut alive. Fructooligosaccharide (FOS), a soluble fibre provides natural, high fibre for easy digestion. It acts as a food source for the body\'s natural bacteria, and as roughage in the bowels. Safe to use. This is safe and gentle to use supplement for long-term use, and can be taken by infants as young as 1 year. It is also safe for pregnant and breastfeeding mothers, as well as the elderly.