Maternal diet and self-control directly impact the physical and mental strength of both mother and child.

Original passage

Many advisers urge that every wish of the mother should be gratified; that if she desires any article of food, however harmful, she should freely indulge her appetite. Such advice is false and mischievous. The mother's physical needs should in no case be neglected. Two lives are depending upon her, and her wishes should be tenderly regarded, her needs generously supplied. But at this time above all others she should avoid, in diet and in every other line, whatever would lessen physical or mental strength. By the command of God Himself she is placed under the most solemn obligation to exercise self-control.