Zesty Paws Allergy Immune Bites are chewable grain-free treats that contain digestive and immune-boosting ingredients that promote a healthy response to food, skin, seasonal, and environmental allergies to help your canine feel happy and healthy. It provides Omega-3 fatty acids EPA and DHA which supports immune health for dogs with skin allergies that may cause itching. These dog probiotics and allergy immune booster are suited for dogs – small, large, senior, & puppies.