Though he was a self-described fussy eater, the teen was healthy in all other respects and wasn’t on any medication, said researchers at the University of Bristol in England. Tests showed he had a form of anemia and low vitamin B12 levels. After B12 injections and dietary advice, the doctor sent him home.
However, it did not end there. A year later the boy, now 15, had hearing loss and vision symptoms, but doctors couldn’t find a cause, the researchers said in a statement.
Two years after that, he was 17 and legally blind. That’s when they discovered a severe vitamin B12 deficiency, low copper and selenium levels, high zinc levels and “markedly reduced” vitamin D and bone mineral density, the researchers said.
He revealed that his diet consisted mainly of Pringles, French fries, white bread and occasionally some processed meats like ham and sausage.
Since starting secondary school, the patient had consumed a limited diet of chips, crisps, white bread, and some processed pork,” the researchers said. “By the time the patient’s condition was diagnosed, the patient had permanently impaired vision.”