Shop By Health Need / Dog / Weak Immunity

This collection brings together 82 immune-support foods, supplements, and treats for dogs whose natural defences may need extra attention — senior dogs, those recovering from illness, or any dog needing steady daily support. Here you'll find antioxidant-rich treats, functional foods, and targeted supplements formulated to help maintain a healthy immune system. Many options feature ingredients like omega-3 fatty acids, vitamins C and E, and probiotics that support overall resilience and wellness. If you're not sure where to start, our team can help you match a product to your dog's age, size, and dietary needs. Shop immune-support dog products in North York or ship across Canada.