The newborn child must need breast milk as necessary for their growth. Every mother should give breast milk in adequate quantity. It is ideal milk for infants. The World Health Organisation also suggest breast milk as an ideal source for new infant upto first six months.
There are many benefits of breast milk. If you give your child breast milk for regular upto six months you can reduce the chances and prevent from the major chronic disease like adiposity, diabetes, and some cancers like childhood leukemia etc. If mother is not able to give breastfeed for some medical reason, people are using soy-based formula and protein hydrosylate formulas should be given if doctor or child specialist suggest.
I think breastfeeding is the best option because it will improve the immune system and keep your children healthy by fighting it from the various ailments by improving the immune system.