Britain's fattest dog has been forced to go on a crash diet after being rescued by the RSPCA - weighing the same as bruising football ace WAYNE ROONEY. Bulbous Alfie, a 12-year-old cream Labrador, weighed a whopping 12st 5lbs when he was signed over to the animal charity. Shockingly, the fat lab had gained so much weight because his elderly owner, who suffers from dementia, kept forgetting he had already fed him. The porky pooch who was "being fed to death" was so fat he could not even stand up and it took four animal workers using towels as a sling to lift him. Stunned RSPCA staff said Alfie is the fattest dog they have ever seen - describiBritain's fattest dog has been forced to go on a crash diet after being rescued by the RSPCA - weighing the same as bruising football ace WAYNE ROONEY. Bulbous Alfie, a 12-year-old cream Labrador, weighed a whopping 12st 5lbs when he was signed over to the animal charity. Shockingly, the fat lab had gained so much weight because his elderly owner, who suffers from dementia, kept forgetting he had already fed him. The porky pooch who was "being fed to death" was so fat he could not even stand up and it took four animal workers using towels as a sling to lift him. Stunned RSPCA staff said Alfie is the fattest dog they have ever seen - describing him as "a massive blob with a leg at each corner". Astonishingly, Alfie who was taken into care in March this year, was three times heavy than the average Labrador - which usually weigh just 4st 7lbs.ng him as "a massive blob with a leg at each corner". Astonishingly, Alfie who was taken into care in March this year, was three times heavy than the average Labrador - which usually weigh just 4st 7lbs.