Top 8 Vitamins & Multivitamin Supplements for Dogs in Canada (2025): A Vet-Informed Guide to Targeted Nutrition, Joint and Immune Support

VetriScience Canine Plus Senior Multivitamin ranks as the market leader for senior dogs by offering a veterinarian‑focused, higher‑potency formula that targets joint, cognitive and immune health alongside standard vitamins. Technically and financially it sits at the premium end compared with the other options, but its vet‑formulated reputation and senior‑specific dosing justify the higher cost for owners prioritizing clinically oriented daily care for older pets.

Pet Wellbeing Young Life Daily Multi is positioned as a premium UK-formulated option emphasizing well-dosed, bioavailable vitamins and omega blends tailored to developmental stages, which helps justify its higher price compared with mass-market brands. It stands out technically by focusing on quality ingredients and targeted growth support, appealing to owners seeking vet-grade formulations rather than the cheapest daily option.

VetriScience Canine Plus Senior Multivitamin is a science-forward product favored by veterinarians for its balanced, research-informed blend of antioxidants, vitamins and joint-support ingredients, delivering a technically rigorous profile for aging dogs. Though typically priced above basic brands, its clinical backing, transparent formulations and often veterinarian-directed distribution provide measurable value for owners seeking a premium, evidence-oriented supplement.

Grizzly Salmon Oil Plus is a premium, cold-pressed salmon oil noted for high EPA/DHA concentration and sustainable sourcing, positioning it as a market leader for potency and ingredient quality to support coat sheen and skin health. Although it carries a higher sticker price than mainstream chews and basic softgels, its greater concentration can mean lower required serving sizes and favorable cost-per-active-ingredient for owners focused on maximum omega-3 intake.

Thorne Vet Canine Basic Nutrients is a veterinary-grade supplement formulated for clinicians and pet owners who need precise, research-backed nutrient levels and high purity, prioritizing measured immune and antioxidant support over palatability. Technically superior in raw ingredient testing and potency compared with consumer chewables, Thorne Vet is usually the most expensive option but offers the strongest quality assurance and dosing control for dogs with specific health needs.

K9 Power Go Dog positions itself as the best-in-class hydration and performance drink for active and working dogs, offering an electrolyte-forward formulation designed for rapid rehydration and endurance support. Compared with the gentler rehydration formulas on this list it emphasizes higher electrolyte concentration and sport-focused ingredients, making it technically suited for exercise and heat-stress scenarios while commanding a premium price-per-serving versus budget options.

PetAg Esbilac 2nd Step Puppy Weaning Food is included as the lead feeding product for lactation scenarios because it provides a nutritionally balanced transition food for pups when maternal milk is insufficient or supplementation is needed, complementing maternal prenatal supplements rather than replacing them. Its technical advantage over vitamin-only products is that it directly supplies calories and macronutrients for growing puppies; financially, it is more of a consumable feeding cost compared with one-time supplement purchases but is essential in mixed litters or orphaned-puppy care.