The main symptoms of calcium deficiency in women in their 50s include cramps, joint pain, back pain, self-consciousness, lack of concentration, insomnia and sleeplessness. 1. Insomnia, poor sleep at night, excessive sweating, poor color. 2. Lack of energy, poor concentration, feeling of lack of strength, not being able to get up the spirit for anything, and not getting good relief even after resting. 3. Numbness of hands and feet, leg and foot cramps, back pain, itchy skin in severe cases, heel pain, osteoporosis, easy to fracture. If you want to clarify whether there is a calcium deficiency, or the extent of the deficiency, you can go to the hospital for a blood calcium test and so on. If the decrease of blood calcium value is not obvious, you can eat more calcium-rich foods, including milk, soy milk, shrimp, marine fish, nuts, kelp, etc., these foods have good effect of calcium supplementation, and you can eat more every day. If the blood calcium value decreases significantly, you can take oral calcium supplements according to medical advice. At the same time, pay attention to, in the process of calcium supplementation should be more sunshine, to promote calcium absorption. If there is any discomfort, consult a doctor in time and follow the doctor’s instructions.