A naturopath practitioner claims to have achieved dramatic improvement in treating the symptoms of autism spectrum disorder in children with fecal transplants. But physicians and scientists are skeptical, including Fulton Schools Professor Rosa Krajmalnik-Brown, whose research has helped to develop the fecal transplant method the naturopath says he is using. Krajmalnik-Brown joins medical professionals and other researchers who warn it is too early in the testing of the procedure to verify its effectiveness and safety. While some results are encouraging, she adds, for now there is too much potential risk involved and more research is needed to confirm the treatment as a viable option.