Yes. I am and so are other physicians i know. I have had good experiences with chinese medicine, homeopathy, gluten free/casein free diet, supplements and of course therapies. I have had patients experience significant improvement. I actually have two patients (who were high functioning to begin with) have their diagnosis of autism removed. While that is unusual, it shows it can happen.
Unfortunately, NO. "natural" ways implies non-pharmacological, non-educational/behavioral interventions. There are no proven dietary, vitamin, bariatric or other interventions that have been shown effective in treating pdd. See www.Nimh.Nih.Gov/health/publications/autism/treatment-options.Shtml.
Yes. I have a bio-medical and sensory integration program that has helped some children recover.