Many restrictions are demanded from amother during pregnancy, and then during lactation. Do not eat this, do not do this, etc. I find it incredible that society has found a new restriction "do not exercise", your baby will refuse the breast because YOUR milk will taste bad!!! ONE study (Infant Acceptance of Postexercise Breastmilk)reported this. It is said in the beginning of the study that the women involved in the study had not previously reported that her infant refused to nurse following exercise. Then the discussion says that acceptance of pre and post-exercise milk was measured by the mother's perception, then that wether or not it was the detection of sour taste or the supression of sweet taste, the postexercise milk was less acceptable to infants ( could the behavior have been linked with the baby reacting to his mother's absence or the surroundings?). What we need to know is that two other studies were published in 1994 (Effects of dieting and physical activity on pregnancy and lactation & A randomized study of the effects of aerobic exercise by lactating women on breastmilk volume and composition). These studies suggests that breastfeeding women can safely undertake an exercise program postpartum without jeopardizing breastmilk volume or composition. Both report that mothers did not have any difficulty breastfeeding their baby after exercising. Dany Gauthier, IBCLC Breastfeeding Coordinator Coordonnatrice en allaitement maternel pour la region 03 Quebec [log in to unmask]