|Unpasteurized goat's milk is a poor substitute for breast milk or formula. Goat's milk is low in Vitamin D and it is also low in iron, Vitamin B12 and folate, which can lead to an iron deficiency or megaloblastic anemia (low blood counts). Goat's milk is also very susceptible to brucellosis, a bacterial infection in animals that can be passed on to your infant.
If you are going to feed your infant goat's milk, make sure that you use a commercially prepared pasteurized form or boil it yourself. You will also need to give vitamin supplements to ensure that your child is getting enough iron, Vitamin B12 and folate.
For children with an allergy to milk proteins or lactose and who can not breast feed or tolerate a cow's milk based formula, a better alternative to goat's milk would be a soy formula (like Isomil or Prosobee) or an elemental formula (such as Nutramigen, Alimentum, or Pregestamil).