The muscular giant smiles gently into the camera of his smartphone.

Hafthor "Thor" Björnsson is known to most people as "The Mountain" from the hit series "Game of Thrones".

He played this role over four seasons.

The name says it all: the 32-year-old Icelander is a man like a mountain.

Björnsson is 2.05 meters tall and became the strongest man in the world in 2018.

He sometimes managed 501 kilograms in the deadlift, 440 in the squat, and 250 in the bench press. Björnsson now wants to attack boxing. But the Icelander lost more than 50 kilograms. In an interview he reveals his training and nutrition plan. And the recipe for building muscle.