Best Supplements and Probiotics for Small Animals: Top 8 Picks in Canada for 2026

Living World Vita-Plus Multi-Vitamin is a broadly available, budget-friendly powder/tablet multivitamin designed for everyday use across a range of small mammals, offering wide retail distribution and easy dosing. It competes with pricier, more specialized formulas like Oxbow by delivering good basic micronutrient coverage at a lower up-front cost, though it may lack the same level of species-specific concentration or niche ingredients found in the top-tier option.

Cosequin DS Plus MSM is positioned as a best-in-class everyday joint support for small dogs thanks to its double-strength glucosamine and added MSM, which deliver a broadly trusted, clinically familiar backbone for long-term mobility care in small animals. Compared with higher-cost, more complex formulations on this list it offers a cost-effective balance of evidence-backed ingredients and convenient chewability, making it a practical first-line option for owners seeking proven results without specialty pricing.

Oxbow's Natural Science Skin & Coat Supplement ranks best-in-class for small mammals thanks to its veterinary-formulated, high-quality ingredient profile that emphasizes natural omega sources and biotin to support fur and skin health in rabbits, guinea pigs and chinchillas. Compared with the other products on this list it leans toward premium sourcing and rigorous formulation, which typically comes with a higher price but offers veterinarians and owners a technically robust option for long-term skin and coat maintenance.

Living World Green Botanicals offers an affordable, plant-forward probiotic treat tailored for daily use in small animals, balancing palatability with gentle digestive support. Financially it undercuts many premium formulas while remaining widely available, making it a strong value choice compared with Oxbow's higher-cost clinical approach and Vitakraft's comprehensive nutrient mixes.

Marshall Pet Products GoodBye Odor for Ferrets is a niche market leader that complements digestive care by controlling ammonia and odor from bedding and litter, improving overall hygiene and reducing stress-related digestive upset in ferrets. Although not a direct probiotic or prebiotic, its targeted, affordable odor-control formulation makes it an important adjunct to the other digestive-support products on this list, particularly for ferret owners managing environmental factors that influence gut health.

Vetri‑Science Vetri‑DMG Liquid is notable for its distinct technical approach: a liquid DMG formulation derived from yeast that offers flexible dosing and rapid administration for animals, making it a go‑to when precise or adjustable dosing is required rather than a straight beta‑glucan supplement. It complements the list by providing an alternative immunomodulatory mechanism to beta‑glucans—trading the chewable/tablet convenience of NaturVet and NOW Pets and the clinical standardization of Thorne for liquid versatility and targeted use.

Martin Mills' Little Friends Timothy Recovery Plus takes a natural, hay-based approach to appetite and calming support by offering highly palatable timothy hay and recovery blends that encourage grazing and steady gut motility. Technically less concentrated than medicinal supplements, it is financially attractive for long-term use and works well as a foundational, calming option alongside more targeted supplements from the other brands.

Natural Factors' Milk Thistle for Pets stands out as the go-to single-ingredient, standardized silymarin product for owners who prefer a focused herbal approach to liver and detox support; its ingredient purity, clear standardization, and transparent labeling make it especially appealing for use alongside other targeted therapies. Financially and technically, it tends to be more economical per active milligram than complex blends and offers predictable pharmacology compared with multi-ingredient formulas like Thorne's blends or the clinically oriented Denamarin.