One may make up five ounces additional food; but the first two days only two or three ounces of the additional amount should be given; the next two days, four ounces; after two days more, the five ounces may be given.
The increase in the quantity given at a single feeding should not be more than a quarter of an ounce.
[ FOOD FOR HEALTHY INFANTS—THE LATER MONTHS ]
How long should the fat be as much as three times the proteids?
This is seldom of advantage longer than three or four months.
What changes should then be made in the milk?
After Formula V of the First Series (6 ounces of 10-per-cent milk in 20 ounces of food) has been reached, the fat should be increased very slowly for this proportion (3 per cent) is near the limit for most healthy children. The milk should now be strengthened chiefly by raising the percentage of proteids.
How is this accomplished?
The 10-per-cent milk and the formulas derived from it should now be discontinued, and those made from 7-per-cent milk used.