Our baby's doctor is not pro breastfeeding. Our baby is 13 months old and her weight has dropped, which is why the doctor asked my wife to use formula milk. However, I think breast milk is better than formula. What should my wife do?

just keep breastfeeding! beyond 12 mths of age, kids only need milk for calcium. their main source of nutrition is longer milk (unlike newborn up till 1yo), and instead food is their main source of nutrition. i find that avocados are packed with lots of nutrition, vitamins and high in healthy fat, a good snack to offer to kids! :)