Infant formula typically contains six basic components: protein, fat, carbohydrate, vitamins, minerals, and other nutrients such as probiotics and prebiotics
. The most commonly used infant formulas contain purified cow's milk whey and casein as a protein source, a blend of vegetable oils as a fat source, and lactose as a carbohydrate source, along with a vitamin-mineral mix and other ingredients depending on the manufacturer
. Modern infant formulas may also contain human milk oligosaccharides, which are beneficial for immune development and a healthy gut microbiota in babies
. Some additional ingredients found in baby formulas include DHA, iron, corn syrup solids, and soy
. It's important to note that different brands of formula may have specific combinations of these components and ingredients, which can vary in their indicated use and benefits
