I am a similar height to the lady in the article. I have never been eight stone except when pregnant. I also lose weight easily when really stressed and have been down to five stone, the weight that the lady now claims to be. Yet my menstrual cycle has never stopped.
When I was at my lowest weight, (I was eating btw) I may have been able to get into younger peoples clothes (to be fair her height is a factor in being able to get into girls clothes) but I didn't, i wore my normal clothes, even if they looked baggy. This is clearly a MH issues on the part of the mother and it's reflecting badly on how she feeds her daughter. She should be sensible about her daughters diet, not just letting her eat crap all the time - thats almost as bad as her telling her daughter not to eat.
Ineedabetter the child in the article is seven, not eleven or twelve.