Yes, dogs can potentially overdose on joint supplements. Excessive intake might lead to side effects like gastrointestinal upset. Always adhere to the recommended dosage and consult a veterinarian before administering supplements. Monitoring your dog and ensuring accurate dosing is crucial for their safety.Yes, dogs can potentially overdose on joint supplements. Excessive intake might lead to side effects like gastrointestinal upset. Always adhere to the recommended dosage and consult a veterinarian before administering supplements. Monitoring your dog and ensuring accurate dosing is crucial for their safety.