How to avoid excessive calcium supplements?

In order to avoid excessive calcium supplementation, you can start from the following aspects:
1. Accurately assess calcium needs
Understand the calcium requirements of different groups of people: The calcium requirements of different groups of people are different in age, gender and physiological status. For example, according to the recommendation of the Chinese Nutrition Society, the daily intake of calcium for adults is generally 800-1000 mg, while the demand for elderly, pregnant and lactating women is relatively high, about 1000-1200 mg for the elderly, and 1000-1300 mg for pregnant and lactating women. Children and adolescents are in the stage of bone growth and development, calcium intake should also increase accordingly, 7-10 years old children daily calcium intake of about 800-1000 mg, 11-17 years old adolescents about 1000-1200 mg. Understanding these criteria can help people control their calcium intake.
Consider individual differences: individual lifestyle, eating habits, disease conditions and other factors can also affect the actual need for calcium. For example, people who engage in outdoor activities and get enough sunshine for a long time have a relatively large amount of vitamin D synthesized through the skin, which can promote calcium absorption, so calcium supplementation can be appropriately reduced. Patients with certain diseases, such as hyperparathyroidism, are prone to elevated blood calcium levels and need to control calcium intake more strictly.
Second, reasonable dietary intake of calcium
Food calcium source control: many foods are rich in calcium, such as milk and its products, soy products, fish, shrimp and shellfish, green leafy vegetables and so on. A balanced diet is a safe way to consume calcium. For example, milk contains about 100-120 mg of calcium per 100 grams, and tofu contains about 100-150 mg of calcium per 100 grams. You can combine these foods according to your calcium needs. However, it should also be noted that the calcium content of some foods may be misunderstood, such as spinach, although it contains a certain amount of calcium, but also contains oxalic acid, oxalic acid will combine with calcium to form calcium oxalate, affecting the absorption of calcium, so when eating vegetables with high oxalic acid content such as spinach, it is best to blanch, remove oxalic acid and then cook.
Avoid over-reliance on calcium supplements: Minimize the use of calcium supplements if you can meet your calcium needs through food. Appropriate use of calcium supplements should only be considered in cases where dietary calcium intake is insufficient, such as vegetarians, lactose intolerant people (it is difficult to obtain calcium from milk), etc. Also, when using calcium supplements, you should take them strictly according to the instructions or recommendations of your doctor.
3. Check your blood calcium level regularly
The importance of medical testing: Regular blood calcium level testing is an effective way to avoid excessive calcium supplementation. A blood test can be done to see if the blood calcium concentration is within the normal range. The normal blood calcium concentration is generally 2.25-2.58 mmol/L. If the blood calcium concentration is high, it is necessary to adjust the calcium intake and dose. For high-risk groups such as the elderly and patients with chronic renal insufficiency, blood calcium should be regularly tested, because these groups are more prone to abnormal calcium metabolism.
Combined with other tests comprehensive judgment: In addition to blood calcium detection, it can also be combined with other tests such as bone density detection to comprehensively assess the status of calcium. Bone density tests can reflect the amount of calcium in the bone and help determine whether there is an excess or insufficient calcium. For example, dual-energy X-ray absorptiometry (DXA) is currently a common method for diagnosing osteoporosis and evaluating bone mineral density, which can provide a more accurate basis for reasonable calcium supplementation by detecting bone mineral density in the lumbar spine, hip and other parts.