calcium is an important substance to promote human bone health
the Research Report of the National Academy of Sciences points out that children aged 4 ~ 8 need 800 mg of calcium per day; The daily calcium demand of 13-18-year-old adolescents at the peak of growth and development soared to 1300 mg; With the gradual completion of bone development, the daily calcium requirement of adults aged 19 ~ 50 decreased to 1000 mg; After the age of 50, people are approaching old age and osteoporosis begins. At this time, the daily calcium demand rises to 1300 mg.
Connie & middot, director of food and Nutrition Department of Purdue University; Dr. Weaver pointed out that adolescence is a key period for the health of human bones in the future, because most of adult bones have grown and developed during this period. For women, 95% of bones have been developed by the age of 17, and 99% by the age of 27. This means that if a girl does not supplement enough calcium during growth and development, she will face an increasing risk of fracture in her life.
milk is the main source of calcium supplement.
American Journal of clinical nutrition published the research results of Cincinnati Children’s Hospital in the United States. It shows that the degree of osteoporosis and fracture risk of adult women who drink less than one glass of milk a day in childhood are twice that of adult women who drink more than one glass of milk a day in childhood. Therefore, nutritionists believe that drinking a glass of milk every day is the bottom line to meet the daily calcium demand of the human body. Dr.
believes that eating 4-5 portions of calcium rich food every day can meet the daily calcium demand of the human body. For example, each 250 grams of milk or yogurt can provide at least 300 mg of calcium. In addition, calcium fortified soybean milk, orange juice, kale and cereal breakfast all contain a certain amount of calcium. But among these foods, calcium in milk is most easily absorbed by the human body. This is because milk contains vitamin D, natural sugar and other components that help the intestines and stomach quickly absorb calcium in milk. In addition, milk also contains other minerals that contribute to bone development.