Contrary to popular thought, you can combine breast feeding with using formula. Your body adjusts its milk production based on demand: Low demand equals low supply. Many women who return to work and don't want to pump during the day, for instance, will nurse their babies in the mornings and evenings and provide formula for daytime feedings. Kids who are not gaining weight adequately may get fed breast milk first, then a topper of 1 to 3 ounces of formula to supplement what Mom makes. That way, the kid still gets the benefit of immunity and all the goodness of breast milk, while meeting her energy needs.
More Answers from Mehmet Oz, MD