This concern is the most common reason for starting formula supplementation, and also for early weaning. You can be assured that nearly all mothers can produce an adequate milk supply for their infant. The human race would not have survived for millions of years if this was not the case. Many of these medical problems can be corrected.
Women have two breasts instead of one so that they can nurse twins.
Since breastmilk intake can t be measured without using sophisticated scientific equipment, it is important to know how to tell if your baby is getting enough.