the mother of a recovering anorexic has taken the brave decision to help others gripped by the devastating eating disorder overcome their illness .
consumed by an obsession with the ` perfect body ' , emma walker slipped into a dangerous cycle , her weight plummeting in a matter of months .
such was the severity of her eating disorder , that the 15-year-old was admitted to hospital twice and faced rigorous .
today , weighing a healthier eight stone -lrb- right -rrb- the 15-year-old is sharing her story to help others that