Lactose or milk-sugar is best for normal babies. It may split up in the
intestines into acids and when it ferments is likely to be a laxative.
Sucrose (cane-sugar) has no advantage over lactose, except that it is
cheaper. Do not give sucrose if other sugars are on hand.
Maltose (malt-sugar) is expensive and is never given pure.
Dissolve all sugars in warm sterilized water. Malt extract is more
laxative than other milk-sugar preparations. Malt extract should be
brought to boiling-point only.