How does the enzyme rennin help the digestive process in infants?

Rennin, also known as chymosin, is an enzyme produced in the stomachs of infants that plays a crucial role in the digestion of milk. It curdles milk proteins, particularly casein, into a gel-like substance, which slows down the digestive process and allows for more efficient nutrient absorption. This prolonged digestion is particularly beneficial for infants, as it ensures they receive maximum nutrition from their mother's milk or formula. Additionally, rennin helps create a stable environment for other digestive enzymes to work effectively.