The contraceptive effects of breast-feeding still play an important ro
le in child spacing in developing countries; however, its use as a met
hod of family planning was untested until 1988, when an international
group of researchers met in Bellagio and reached a consensus statement
that reads ''The maximum birth spacing effect of breast-feeding is ac
hieved when mothers fully or nearly fully breast-feed and remain ameno
rrheic (and no menstrual bleeding has occurred before the 56th post-pa
rtum day). When these two conditions are present, breast-feeding provi
des more than 98% of protection in the first six months. That became t
he basis for a method of family planning called the lactational amenor
rhea method (LAM). Which is a new introductory family planning method
that simultaneously promotes child spacing and breast-feeding, with it
s optimal nutrition and disease preventive benefits for the infant. Th
is method is based on the natural infertility caused by the hormonal s
uppression of ovulation.