What are the symptoms of malnutrition in a 1-year-old baby?

A 1-year-old baby with malnutrition usually has symptoms such as weight loss, developmental delay and decreased immunity, as follows:

1. Weight loss: Due to insufficient nutrition intake, babies with malnutrition cannot meet the energy and nutrients required for normal growth and development. Therefore, the baby's weight will drop abnormally. Malnutrition can lead to the decomposition of muscle and fat tissue, resulting in weight loss.

2. Developmental delay: Malnutrition can affect the baby's growth and development, leading to developmental delay. The baby's height and weight growth rate is significantly lower than that of normal babies of the same age, and the time to achieve developmental milestones (such as sitting, crawling, walking, etc.) will also be delayed. Developmental delay may affect the baby's intellectual development and physical fitness.

3. Decreased immunity: Malnutrition can damage the baby's immune system and lead to decreased immunity. The baby is susceptible to infection and often has symptoms such as repeated fever, respiratory tract infection, and digestive system problems. Decreased immunity can also affect the baby's ability to respond to vaccines and increase the risk of illness.

In addition to the relatively common symptoms above, there are other possible symptoms, such as anemia, dry skin, thinning hair, angular cheilitis, etc. These symptoms appear due to malnutrition that leads to impaired function of various body systems and lack of specific vitamins and minerals. Anemia may be caused by insufficient iron, vitamin B12 or folic acid. Dry skin and thinning hair may be manifestations of vitamin A and vitamin E deficiency. Angular cheilitis is often associated with vitamin B2 deficiency. The appearance of these symptoms indicates that there is a problem with the baby's nutritional intake, and timely intervention and nutritional supplementation are needed.

Please note that the above answers are for reference only. If you have specific symptoms or questions, please consult a professional doctor for further diagnosis and treatment.