All mammals (including dogs, cats and humans) have numerous beneficial bacteria living in their digestive tracts (gut). Gentle Digest contains prebiotics and probiotics. Probiotics provides a source of beneficial intestinal bacteria and also helps to encourage their growth. Prebiotics help stimulate the growth and/or activity of probiotics. Gentle Digest is helpful for numerous issues including antibiotic associated diarrhea, constipation, and irregularity, occasional bouts of gas, periodic outbreaks of ear yeast, infection, aiding senior pets who have difficulty absorbing food nutrients, maximizes benefits for pets fed a raw diet.