The soy formulas are Isomil, Prosobee and Carnation Soy. Some babies will get allergic to soy and then must try special hypoallergenic formulas, Nutramigen or Alimentum. They are made from specially treated cow's milk protein. If this does not work then goat's milk may be tried. Goat's milk must be supplemented with vitamins, iron, and with folic acid.
Folic acid is present in fruit and vegetables.
Now some brands of evaporated goat's milk have folic acid already added to it. It has been popular with kids for many years. Occassionally babies will not tolerate the regular formula, then formulas may be made up from evaporated or whole milk. 3 Teaspoons of sugar. For the first 2 months of life, the milk containers and the water used should be sterilized by boiling for 1 minute.