Answer to Q1.
Breastmilk is the best source of nutrition for healthy babies as it contains the right balance of nutrients for infants and also anti-infective agents which protect the baby against infection. Breastmilk also confers immunological advantages which may reduce the incidence of illness and which may extend into later childhood. These include not only antibodies and other immune-protective proteins, but also living cells.
Breastmilk may also reduce the risk of development of allergies in those where there is a family history of allergy, and it is hygienic, convenient and free.