UT Strength Feline has been formulated to support urinary tract health and can be used long term with those animals who are predisposed to UT issues and crystals. This veterinarian formulated product includes D-Mannose, GanedenBC30 and cranberry extract. These ingredients work together to promote normal function of the urinary tract system. UT Strength from VetriScience is a chicken liver flavored soft chew that even finicky cats love.