Joint supplements including glucosamine, chondroitin, and hyaluronic acid are widely used in horses but scientific evidence for their efficacy in improving joint health and welfare remains mixed.
Horses with joint disease experience pain and mobility restriction that directly impacts welfare. If joint supplements genuinely reduce pain or slow cartilage deterioration they represent a meaningful welfare intervention. However, the lack of robust clinical evidence means owners may be spending money on ineffective products while missing out on proven pain management approaches. Horses with identified joint disease should receive veterinary assessment and evidence-based treatment first. Supplements may play a role as adjuncts but should not replace veterinary care or proven analgesics.