The bouncy bunny, over 3ft long and larger than the average three-year-old child, wolfs down around £50 of food each week.
His daily diet is based around cabbage, broccoli, two types of sweetcorn, cucumber, carrots, dried watercress, apples, brown bread, cream crackers, swede and a helping of Weetabix.
Ralph first won the largest rabbit title in 2010 but was then overtaken by fellow Continental Giant breed Darius from Worcester, who took the title last year weighing three and a half stone.
Now East Sussex-born Ralph has forged ahead again after tipping the scales at 3st 8lb.
His owner Pauline Grant said: "He is supposed to be the world's biggest bunny. He has matured now and is the heaviest he has ever been.
"Ralph is fine and healthy. The worst thing is that he is moulting at the moment so everyone is covered in rabbit hairs. His diet has not changed much over the years. I have been told by one or two vets that I should not give him all the food but it does not seem to do him any harm. He is fit and healthy."
Pauline of Uckfield, East Sussex, added: "He is a big celebrity."
Ralph's mother Amy was recognised in the Guinness Book of Records as the world's biggest rabbit before she died four years ago.
His father Roberto is also a former holder of the record after weighing in at 3st 5lb.
Pauline cares for Ralph at the Sussex Horse Rescue Trust centre in Uck-field, which she runs along with helper Cindy Winson, 17, and others.
She relies on donations from visitors to help foot the bill not only for the horses but for Ralph's enormous meals.
Pauline added: "We have got a big place here and he can go anywhere he wants. He has a fantastic life and is not just kept in a hut.
"His diet is incredible. It is dear at the moment but it is worth it. His welfare is paramount for us.
"He will not get any bigger now. Our visitors really like him and are fascinated by him and his family."
Waiting for ah bear to come in to say that it taste delicious in a claypot
Tat said, does obese bunny suffer from health problems?
Originally posted by ^Acid^ aka s|aO^eH~:Waiting for ah bear to come in to say that it taste delicious in a claypot
Tat said, does obese bunny suffer from health problems?
I do know that obese pets like cats and dogs suffer from health problems, mostly because of lack of excercise and rich food. As for bunnies their diet are more vegetables orientated, my guess is they don't have the same problems with their furry cousins.
My skinny bunny has a lousier diet than that bunny above, also suffer from cancer, and is currently blind in both eyes.
Originally posted by ditzy:My skinny bunny has a lousier diet than that bunny above, also suffer from cancer, and is currently blind in both eyes.
Give the bunny some steroid.