What are the reasons for calcium loss

Calcium loss may be caused by aging, hormonal changes, imbalanced diet, lack of exercise, chronic diseases, and other factors.

1. As age increases, the body's ability to absorb calcium gradually decreases, and a decrease in bone mass is a natural phenomenon. Middle aged and elderly people experience a decrease in intestinal calcium absorption efficiency and an increase in renal calcium excretion, leading to continuous loss of bone calcium. The sudden drop in estrogen levels in postmenopausal women can accelerate the rate of bone loss.

2. Hormonal changes

Abnormal secretion of parathyroid hormone can disrupt the balance of calcium and phosphorus metabolism. Hyperthyroidism accelerates bone turnover, and elevated cortisol levels can inhibit osteoblast activity. If pregnant and lactating women do not supplement calcium in a timely manner, the mother will release calcium through the bones to supply the fetus.

3. Unbalanced diet

Long term insufficient calcium intake or vitamin D deficiency directly affects calcium absorption. A high salt diet increases urinary calcium excretion, while excessive caffeine and alcohol interfere with calcium metabolism. Vegetables with high oxalic acid content combine with calcium to form insoluble precipitates, reducing the bioavailability of calcium.

4. Lack of exercise

Insufficient mechanical load stimulation can lead to negative balance in bone remodeling. Long term bedridden individuals can lose up to one percent of their overall bone mass per week. Moderate weight-bearing exercise can promote bone cell activity, and people who lack exercise generally have lower bone density than those who are active.

5. Chronic disease

Advanced glycosylation end products in patients with diabetes will damage ossein, and chronic kidney disease will affect the synthesis of active vitamin D. The atrophy of small intestinal villi in patients with celiac disease leads to calcium absorption disorders, and inflammatory factors in rheumatoid arthritis accelerate bone resorption.

To prevent calcium loss, it is necessary to ensure sufficient daily intake of calcium rich foods such as dairy products and soy products, combined with moderate vitamin D supplementation. It is recommended to engage in weight-bearing exercises such as brisk walking and dancing, and avoid smoking and excessive alcohol consumption. Middle aged and elderly people can undergo regular bone density testing, and those with chronic diseases should receive targeted interventions under the guidance of a doctor. Sunlight exposure helps the skin synthesize vitamin D, and it is recommended to engage in moderate outdoor activities every day.