Crumps' naturals Gutsy Calm Bites. Gutsy Calm Bites help de-stress and promote relaxation with gut boosting prebiotics in every bite. Formulated with science backed ingredients like fermented yeast and powerful prebiotics to help naturally occurring good gut bacteria thrive. These tasty bites are infused with Ashwagandha and Reishi mushrooms known for stress-reducing properties, ensuring your pet's well-being from the inside out. Why? Because 90% of mood elevating serotonin is found in the gut! Healthy Gut = Healthy Body = Healthy Mind. Made in Canada Available Sizes: 4.6 oz (130 g) / 10 oz (284 g).