Scientific research has confirmed that after the age of 32 for men and 28 for women, bone calcium decreases at a rate of 0.1-0.5% per year. By the age of 60, as much as 50% of bone calcium can be lost, making osteoporosis more likely. At present, besides using some hormones to slow the loss of calcium, there are no better methods to prevent the reduction of bone calcium.
Bone density refers to the mineral content of bones, with calcium being the most important element. Bone density varies from person to person. Individuals with higher bone density, even with the same rate of loss, can postpone the onset of osteoporosis due to a better baseline. Research shows that calcium supplementation is only effective in maximizing mineral content in bones during a specific period around the age of 30. After 35, the body's overall physiological functions begin to decline. Therefore, the optimal period for calcium supplementation is from before the age of 35 throughout the entire adolescent development stage.
According to nutritionists, the recommended daily calcium intake is 800 milligrams. It is difficult for our current dietary structure to meet this target. The daily calcium intake for young men is typically around 500 milligrams, and for women, it's around 400 milligrams. Therefore, it is essential to increase the consumption of calcium-rich foods or calcium supplements in the diet. Foods high in calcium include dairy products, legumes, dried fruits, leafy vegetables, and animal bones. Dairy products have the highest calcium content, and the body also absorbs and utilizes this calcium efficiently. 250 grams of milk can contain up to 300 milligrams of calcium, making daily consumption of 250 grams of fresh milk an ideal way to supplement calcium. Alternatively, supplementing with 1 gram of calcium tablets or preparations, such as calcium gluconate daily, can also meet the body's needs. Furthermore, it should be emphasized that women's calcium requirements are slightly higher than men's, at 1000 milligrams per day, and 1500 milligrams per day during pregnancy.