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Calcium needs to follow the principle
Calcium deficiency is a growing global health concern that affects millions of people worldwide. Experts have identified it as a serious condition that not only causes physical and mental discomfort but also hinders the overall development of human health. This issue demands urgent attention from all sectors of society.
During pregnancy, 99% of the calcium transferred to the fetus is used for bone development, while just 1% remains in the blood as ionized calcium. However, after birth, most individuals experience some degree of calcium deficiency. People of all ages suffer from this problem, with children and the elderly being the most affected. Scientific studies reveal that starting at age 20, bone mass decreases by about 1% annually, and by the age of 50, it can drop by up to 30%. This alarming trend highlights the importance of maintaining adequate calcium levels throughout life.
When the body lacks calcium, it begins to draw calcium from the bones into the bloodstream to maintain normal serum calcium levels. This process, known as "calcium leaching," disrupts the balance between bone calcium and serum calcium, leading to metabolic imbalances. While short-term deficiencies may not immediately affect serum calcium, prolonged lack can lead to serious health issues. In children, symptoms may include thinning hair, loss of appetite, restless sleep, and rickets. In adults, it can cause skeletal deformities, vision problems, back pain in pregnant women, and even developmental issues in fetuses. In the elderly, it increases the risk of osteoporosis, bone degeneration, kidney stones, hypertension, diabetes, and cognitive decline.
Despite eating calcium-rich foods like dairy, beans, seafood, and bones, many still suffer from calcium deficiency. The problem lies in how well these sources are absorbed. Most dietary calcium comes in the form of insoluble salts, which are difficult for the body to absorb. Additionally, substances like phytic acid in grains or fatty acids in meat can further reduce absorption by forming insoluble compounds. According to modern nutritional standards, adults should consume at least 800 mg of bioavailable (ionized) calcium daily, while infants need around 1,000 mg. Unfortunately, for years, medical professionals mistakenly measured calcium as pure elemental calcium, leading to ineffective supplementation. Recent advancements have corrected this misunderstanding, sparking a global shift in calcium nutrition.
Choosing the right calcium supplement is crucial. Ideal supplements should be highly absorbable, contain high-quality calcium, and dissolve easily. Many new products now meet these criteria, making calcium supplementation more effective than ever before. Natural sources like milk, dairy products, shrimp shells, beans, nuts, seaweed, and kelp are excellent for meeting daily calcium needs. Among them, shrimp shells are particularly rich in calcium, containing up to 2000 mg per 100 grams, and are easily absorbed when properly processed.
For optimal absorption, calcium should ideally be taken one hour before meals on an empty stomach. A balanced diet is the foundation of good health. The Chinese Dietary Guidelines recommend regular consumption of milk and soy products, which are high in calcium. Programs like the Soybean Action Plan and the Student Milk Program are excellent ways to improve calcium intake.
Preventing calcium deficiency involves ensuring sufficient intake through food and, if necessary, supplements. When choosing calcium supplements, it’s important to avoid harmful ingredients and select products that are safe and effective. The form of calcium in the diet is less important than factors like age, health status, and overall diet. Granules that dissolve easily are often more effective, and organic forms like calcium citrate are better for those with low stomach acid.
Finally, calcium supplementation is a long-term commitment. It takes time to see results, and consistency is key. Studies show that consistent calcium intake during childhood and adolescence plays a vital role in building strong bones for life.
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