As a food ingredient with complete protein, soybeans are often used as an alternative source of intake. Soybeans can be used as baby formula or food for adults. But behind its benefits, soybeans also have a number of controversies that are often debated. There are various claims of benefits and side effects of consumption of soybeans, both as a basic ingredient in food and milk. Although most have not been clinically approved, there is no harm in looking at all of these controversies. Soybean Milk for Infants Cow Milk Allergy Soy-based formula milk is often used as a substitute for breast milk, especially in infants who are allergic to cow's milk-based formula milk or if baby's digestion cannot digest lactose. This allergy usually causes the baby to have diarrhea or cry after feeding because his digestion becomes uncomfortable. Despite this experience, you should not immediately replace breastfeeding with soy-based formula milk, unless it has been recommended by a doctor