If your dog has joint disease, you can take shark chondroitin for a long time, which can relieve the dog's pain and effectively prevent the occurrence of the disease. If your dog's body is normal, then it is best not to give your dog shark chondroitin. Otherwise, it will be counterproductive and affect the dog's health. Pay attention to the dog's diet management and do not feed the dog food with excessive oil and salt content, which will increase the burden on the dog's body.