Some parents feared that infants and young children were not well-nourished. They often gave them fruit juice instead of drinking water and vitamin C supplements. Fruit juice tastes good and nutrition is also good. It is good for the children to drink properly. But drinking too much is harmful. 
Recent studies abroad have shown that infants under the age of two, if they regularly take large amounts of fruit juice, can affect appetite, lead to malnutrition, affect normal growth and development. Dr. Feiner Lievez of the United States and his colleagues conducted research on eight infants between 14 and 27 months of age. After investigating their dietary records, the researchers found that they drank approximately 1.5 to 3 bottles (standard bottles) of fresh fruit juice daily. Later, after reducing the intake of fresh fruit juice and increasing the amount of milk, the weight of infants and young children has increased significantly. 
Juices made from fruits are rich in fructose, which the body can absorb and use, but excess fructose can affect the body's absorption of copper. Copper is one of the necessary trace elements in the human body to participate in the manufacture of cardiovascular tissue. The lack of copper in children will leave hidden dangers for coronary heart disease in the future. Copper is also an integral part of many enzymes in the body. It is involved in the metabolism of iron in the body. Therefore, copper deficiency can also cause anaemia, and the therapeutic effect of iron supplementation is also not good. 
In addition, fruit juice also contains tannic acid and pigments. After entering the human body, the former is combined with calcium ions to form calcium citrate, which is not easy to release, so that the blood calcium concentration is reduced, resulting in excessive sweating, emotional instability, and even skeletal deformities and other symptoms of calcium deficiency. The harm of pigments to children is also quite large. Accumulation of excess pigments in the body is not only one of the causes of ADHD in children, but also can interfere with the function of various enzymes, and impair the metabolism of proteins, fats and sugars, thereby affecting the growth of infants and young children. development. 
Experts suggest that infants should not be given fruit juice before half a year old. They may take appropriate amounts after 1 year of age. However, the daily amount should not exceed half a bottle, especially apple juice, which can lead to diarrhea when taken in large quantities. Children should be given plenty of boiled water, because boiled water most easily passes through the cell membrane and interferes little with the body, which is beneficial to metabolism, maintains immune function, and improves disease resistance. White boiled water can add some juice, but not too much, but it can not replace boiled water.
Source: Chinese maternal and infant network
Recent studies abroad have shown that infants under the age of two, if they regularly take large amounts of fruit juice, can affect appetite, lead to malnutrition, affect normal growth and development. Dr. Feiner Lievez of the United States and his colleagues conducted research on eight infants between 14 and 27 months of age. After investigating their dietary records, the researchers found that they drank approximately 1.5 to 3 bottles (standard bottles) of fresh fruit juice daily. Later, after reducing the intake of fresh fruit juice and increasing the amount of milk, the weight of infants and young children has increased significantly. 
Juices made from fruits are rich in fructose, which the body can absorb and use, but excess fructose can affect the body's absorption of copper. Copper is one of the necessary trace elements in the human body to participate in the manufacture of cardiovascular tissue. The lack of copper in children will leave hidden dangers for coronary heart disease in the future. Copper is also an integral part of many enzymes in the body. It is involved in the metabolism of iron in the body. Therefore, copper deficiency can also cause anaemia, and the therapeutic effect of iron supplementation is also not good. 
In addition, fruit juice also contains tannic acid and pigments. After entering the human body, the former is combined with calcium ions to form calcium citrate, which is not easy to release, so that the blood calcium concentration is reduced, resulting in excessive sweating, emotional instability, and even skeletal deformities and other symptoms of calcium deficiency. The harm of pigments to children is also quite large. Accumulation of excess pigments in the body is not only one of the causes of ADHD in children, but also can interfere with the function of various enzymes, and impair the metabolism of proteins, fats and sugars, thereby affecting the growth of infants and young children. development. 
Experts suggest that infants should not be given fruit juice before half a year old. They may take appropriate amounts after 1 year of age. However, the daily amount should not exceed half a bottle, especially apple juice, which can lead to diarrhea when taken in large quantities. Children should be given plenty of boiled water, because boiled water most easily passes through the cell membrane and interferes little with the body, which is beneficial to metabolism, maintains immune function, and improves disease resistance. White boiled water can add some juice, but not too much, but it can not replace boiled water.
Source: Chinese maternal and infant network