Eat too much meat every day. Pork, beef, mutton and other meat are the lowest calcium content food. If there is no meat in every meal, eating a lot of meat will not only lead to obesity, but also lead to the excess of total protein in the diet, leading to the loss of calcium.
Don't eat coarse food at ordinary times. Grain is the food with high content of calcium and vitamin D, and vitamin D is an important nutrient to promote calcium absorption. Children usually eat little coarse grain will affect calcium intake.
Three meals a day are too salty. Calcium in the human body is excreted from the urine together with sodium. Therefore, if salt is eaten too much, the amount of sodium excreted in the urine will be more. At the same time, the amount of calcium excreted in the urine will also increase, resulting in the loss of calcium in the body.
The partial diet is serious. Lack of trace elements such as copper, manganese and zinc in food will also affect bone density, so partial diet will also affect the growth and development of children's bones and bone mass. Usually, you should eat more calcium rich foods such as milk, fish, shrimp, mussel, radish, celery, spinach, cabbage, cabbage, various bean products, etc.
I usually drink too much carbonated drinks. Children who regularly drink large quantities of carbonated drinks are three times more likely to have fractures than teenagers who do not. So, it's better for children to drink less of this kind of drink.
There are too few activities at ordinary times. The more functional activities of bone system, the more developed muscles, the more calcium bone absorbs.
Children need to do more physical exercises, through muscle contraction, so that the bone force, prevent muscle atrophy and osteoporosis. It is very important for calcium absorption that vitamin D is produced and transformed only by outdoor activities and sunlight!