Look how this guy has pumped up his muscles!
His 31 inch biceps are as big as a grown-man’s waist!
An Egyptian-born bodybuilder has just had his 31 inch biceps crowned the biggest in the world.
Moustafa Ismail, 24, has spent ten years pumping iron twice a day.
'Big Mo' eats as much as 3 pounds of chicken, 1 pound of steak or fish, and four cups of almonds washed down with two gallons of water and three litres of protein shakes in a day.
The bodybuilder was so dedicated to bulking up his arms he moved his whole family to America to gain access to better work-out equipment.
He can lift an incredible 500 pounds.
He has a daily exercise regime of 5am until 8am during which he concentrates on cardio, strength-training and body sculpting, using heavy and light isolated weights.
When he is not pumping iron, he's pumping gas at the two petrol stations he owns near his home in Massachusetts.
'Working out makes my mood better. You’re just focusing.
'I like that, in this type of sport, you can see your improvement in your shape,' he says. 'I know they are growing, my chest, my shoulders, my arms. I love weights.'
Moustafa’s biceps have now been confirmed as a record and he will appear in the Guinness Book of World Records 2013, which is being launched in London today.