... the uniform recommendation of exclusive breastfeeding for the first months of life is the lack of understanding of reasons for the marked attrition rates in exclusive breastfeeding, even among ... intentions to exclusively breastfeed for months, 23% of mothers added solids to their infant s diet at 4.5 months; 55% HUMAN-MILK INTAKE DURING EXCLUSIVE BREASTFEEDING IN THE FIRST YEAR OF LIFE Table ... determinants of the duration of exclusive breastfeeding A limitation to promoting exclusive breastfeeding for the first months of life is our lack of understanding of the reasons for the attrition rates...