Our two and a half year old son had difficulty with stuttering for a few months.  After my sister-in-law, a nurse, told us about the potential dangers of nitrates for children, especially contributions to developmental delays, we removed all nitrates from our son's diet and within about a week the stuttering was gone. Yesterday, our son went on an outing to the zoo with my mother. Strangely, his stuttering returned full-force today. I called my mother to ask what he had ingested for lunch
and dinner yesterday. The glaring answer:  a HOTDOG.