George weighs almost 5 pounds, several times the weight of a normal hedgehog. The article doesn't mention if there's a Body Mass Index recommended for hedgehogs, but explains that George had been gorging on easily-available greens and on bread that was meant for the birds.
George's nurse at the Centre explained his new catfood diet:
"We've got to reduce his weight and we've got to do it slowly. Cat food is high in protein and we're stopping him eating bread. So it's a bit like the Atkins diet."