It is this product that responded best to my expectations. Antibiotics seriously and irremediably jeopardizing the intestinal flora "Mitsie" after sterilization, I looked something like the ultra-yeast to humans, can regularize it. So I mixed him a bag with his kibble regularly (for 15 days every 2 to 3 months). I have found nothing better to date. Highly recommend for cats with similar intestinal problems.