Goats milk formula

Just wondering if anyone knows.. We have our 7month old on karicare goats milk formula, he has reflux and a sensitive tummy so our doctor recommended it and it has made him a much more settled baby. Anyway at our health nurse appointment the other day she said that goats milk formula doesn't have as much iron in it as regular formula and I should be giving him a supplement such as pentevite and then a friend of mine was telling me it lacks other vitamins as well. Does anyone know if this is true?? I have a doctor appointment next week but I'm concerned we aren't giving him enough of what he needs now.