People so love using that story to bash on veganism, all angry & righteous as this article is, and it’s a LIE: http://www.azcentral.com/news/articles/2008/07/04/20080704parker0704.html
Here's a statement from the prosecuting attorney:
"The problem is not that Blair Parker or Kimu Parker fed these children a vegan diet, the problem is that they didn’t feed them. I’m sorry that the news has publicized this as somewhat of an attack on a vegan diet... I believe you can raise very, very healthy children on a vegan diet, but you can’t raise healthy children on the food that the Parkers were giving their children."
Parker obsessed about the children's bowel movements, gave them enemas that further impeded absorbing any nutrients.
"Vegan children who are fed properly grow," said Deputy County Attorney Frankie Grimsman. In fact, when the kids were placed in foster homes, they immediately began to gain weight - while still on vegan diets.