Final answer:
Casein hydrolysate, such as Pregestimil, is a form of hydrolyzed protein used in infant formula for babies who have trouble digesting intact proteins.
Step-by-step explanation:
Casein hydrolysate, specifically the premade formula Pregestimil, is a form of hydrolyzed protein used in infant formula. It is specially designed for babies with difficulty digesting intact proteins. Casein, a type of milk protein, is broken down into smaller molecules through hydrolysis, making it easier for babies to digest.