Mark (26) and Peter Lavery (19) have never knowingly eaten meat, chicken or fish. They are also barred from having cheese, eggs, beans and tofu. For most people, that would seem like the ultimate deprivation. But these young, southside Dubliners fully understand that having a diet that is almost totally protein-free ensures their survival.
Mark says his problems began soon after his birth when a heel prick test was done. This routine procedure checks newborn babies for six medical conditions including cystic fibrosis. “Five days later, my parents were told I had a disease called phenylketonuria (PKU).”