Michelle Roberts Health editor, BBC News online
Experts are warning about the risks of extreme restrictive eating after a teen developed permanent sight loss after living on a diet of chips and crisps.
Eye doctors in Bristol UK cared for the 17-year-old after his vision had deteriorated to the point of blindness.
Since leaving primary school, the teen had been eating only French fries, Pringles and white bread, as well as an occasional slice of ham or a sausage.
Tests revealed he had severe vitamin deficiencies and malnutrition damage.

Chips and Junk Food are BAD for Our EYES
Malnourished
Three years later, he was taken to the Bristol Eye Hospital because of progressive sight loss, Annals of Internal Medicine journal reports.
Dr Denize Atan, who treated him at the hospital, said: "His diet was essentially a portion of chips from the local fish and chip shop every day. He also used to snack on crisps - Pringles - and sometimes slices of white bread and occasional slices of ham, and not really any fruit and vegetables.
"He explained this as an aversion to certain textures of food that he really could not tolerate, and so chips and crisps were really the only types of food that he wanted and felt that he could eat."…


