Because there is no heavyweight classification of sumo, gaining weight is a very effective way to win. But their weight structure is different from that of ordinary obese people.

Through scientific training and work and rest (exercise on an empty stomach for 5-6 hours in the morning to extreme hunger+eat a lot of carbohydrates+go to bed immediately), sumo wrestlers make all the added fat subcutaneous. High-intensity exercise will not affect muscle strength and organs. A sumo wrestlers has no less muscles than a so-called muscular man, but subcutaneous fat covers the muscles. However, subcutaneous fat is very easy to consume through exercise, which is equivalent to only increasing tonnage.