Omega oil is an essential component of pet health, supporting digestion, joint health, skin and coat, and overall well-being. NAS Puppy Development Omega Oil is rich in high levels of DHA (docosahexaenoic acid), an omega-3 fatty acid crucial for dogs' neurological development. DHA is one of the primary structural components of the brain and plays a vital role in the development of the nervous system and retinal function in dogs.