In recent times the rôle of the carbohydrates in infant feeding has received marked attention. Whether the importance they have assumed in the minds of some in the pathology of nutritional disturbances is justified must be decided by future study.
For years the adjustment of the carbohydrate percentage to the digestive and caloric requirements of the infant was considered the easiest part of the problem of infant feeding. The fact that mother's milk contains constantly 7 per cent, of lactose, furthermore the fact that lactose is of animal origin and is essentially the same whether human or derived from the cow, ass, rabbit, dog or horse, made this portion of the problem seem simple. To imitate Nature and furnish the infant with the same carbohydrate in the same percentage appeared to answer every requirement.
That lactose could cause digestive disturbances with the production of acid, green, foamy, watery stools as