The most obvious signs of calcium deficiency in middle-aged and elderly people are leg cramps, back pain, height reduction, fragility fracture, etc. They may also suffer from knee pain, insomnia, irritability and a series of other symptoms. The most obvious sign of calcium deficiency in middle-aged and elderly people is leg cramps, which are mostly seen at night when they sleep, or after getting cold, leg cramps will occur when they move their legs and feet, which will seriously affect their sleep. This is when calcium deficiency is more serious and should be supplemented in time. Calcium deficiency in middle-aged and elderly people will also cause a reduction in height, hunchback, but also prone to fragility fracture or osteoporosis spontaneous compression fracture. Knee pain, insomnia, irritability and a series of other symptoms are also more common. Middle-aged and elderly people who suffer from calcium deficiency should promptly supplement foods with high calcium content, such as: milk, rib soup, etc., and usually more sunshine to promote calcium absorption. Through the dietary calcium treatment, leg cramps, if the symptoms are not relieved, you can go to the hospital, if necessary, under the guidance of a physician to take calcium medication.