Choline plays a crucial role in the production and development process of the human body. Studies have shown that choline has positive promoting and improving effects on brain development and metabolism, nervous system information transmission, visual enhancement, and calcium metabolism. In addition, choline can affect fetal brain development, enhance baby's memory, and play a key role in the closure of neural tubes; Lack of choline may lead to memory impairment, kidney damage, stem cell damage, and cause cardiovascular and cerebrovascular diseases. 

Choline is mainly used in the field of food for infants and young children, as well as for pregnant and lactating women. It is a necessary nutrient added to infant formula. The main sources of choline in the human body are self synthesis and food acquisition. Generally, choline deficiency does not occur. However, for infants and young children, their ability to synthesize choline on their own is limited, especially in the case of insufficient breast milk. The main source of choline needed by the body is infant formula, so monitoring the choline content in infant formula is of great significance