Studies comparing breast-feeding to bottle-feeding show that:

A) breast-fed babies have fewer allergies and stomach aches.
B) breast-feeding is recommended for about half of all mothers.
C) recent improvements in formula make bottle-feeding more nutritious than breast milk.
D) breast-feeding should end as soon as a baby gets a tooth.

Breast-feeding

The practice of feeding a baby with milk directly from the mother's breast, providing essential nutrients and antibodies.

Allergies

Immune system responses to foreign substances (allergens) that are typically harmless to most people, causing symptoms such as sneezing, itching, and swelling.

Bottle-feeding

Feeding a baby from a bottle filled with milk (either expressed breast milk or formula), as an alternative to breastfeeding, allowing others to feed the baby and facilitating measuring how much the baby consumes.