You do not need to repeat the lactose intolerance tests because your baby cannot tolerate milk as you have seen with this milk challenge.Possibly as a result of his intolerance,his diet seems to be limited. The Isomil should be adequate as his formula and is supplemented with calcium. The problem lies with his solids which do not seem to be enough for him.Follow the recommendations on this website for feeding him his solids: www.babynet.co.za
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