People with calcified knee can take care of it through daily diet and exercise. 1. Daily diet: If you have calcified knees, you can take peas and other foods in your daily diet to supplement vitamin K. In addition, you can also take glucosamine supplements under the guidance of a professional doctor to maintain the health of your knees. 2. Exercise: Common exercises to maintain knee health include leg lifting exercises, which are as follows: stand in front of a step and step up one or two steps with one leg, paying attention to the fact that the whole foot should touch the ground. Then the foot on the steps for support, the body slowly raised, the left foot slowly off the ground until the toes pointing to the ground, adhere to a few seconds, alternating legs. Related exercise exercise should be carried out under the guidance of professionals, so as to avoid improper operation and cause injury. In addition, people with calcified knees should also pay attention to keep warm in their daily life, do not get cold, in order to better maintain the normal function of the knee.