Nutrition profoundly affects dog health, longevity, and daily wellbeing. Understanding canine nutritional needs helps owners make informed choices that support their dog's welfare throughout life.
Canine nutrition welfare has two primary dimensions: ensuring nutritional adequacy and preventing the harm of obesity. Nutritional deficiencies from poorly balanced home-prepared diets or single-ingredient feeding cause specific diseases — calcium-phosphorus imbalances cause bone problems, taurine deficiency is linked to dilated cardiomyopathy in some breeds, and vitamin D deficiency impairs bone development. Obesity is the more prevalent welfare problem, associated with osteoarthritis pain, reduced exercise tolerance, increased anaesthetic risk, and shortened lifespan. The welfare benefits of maintaining a lean body condition score throughout life are substantial and well-evidenced. Owner education about body condition scoring and appropriate caloric intake is the most impactful single nutritional intervention available.