Calcium-rich foods

Calcium is a regulator of human life activities and is the source of life, accounting for approximately 1.5% to 2.0% of adult weight, and a total weight of approximately 1200 grams. Calcium plays an important physiological role in all stages of growth and development in life, from childhood to adulthood and even to old age, and is an indispensable and important element in ensuring human health and longevity.
Calcium is abundant in limestone, clam shells, and animal bones. However, in the case of most calcium, calcium insoluble in water exists in nature and is hardly absorbed by the human gut. In a wide variety of foods, calcium-rich foods are few, few, plus the traditional vegetarian diet in our country, there is little habit of drinking milk and dairy products. Therefore, the problem of calcium deficiency has become prominent, especially among children, women and the elderly.
With the development of society, life expectancy per capita is prolonged, and the aging of society is becoming more and more serious. The lack of calcium leads to more and more obvious damage to human health. Calcium supplementation has become a hot topic in the 21st century. To this end, nutritionists called on all sectors of the community to adjust the dietary structure as soon as possible and pay attention to the intake of more calcium-containing foods: milk, cheese, beans and soy products, eggs, kelp, seaweed, shrimp, fish, sesame, fish meal, Fish foods such as fish and green leafy vegetables are used to improve human health.