Sumo Wrestlers Eat Up to 7,000 Calories Per Day

A sumo wrestler's immense size is a carefully cultivated strategic advantage in a sport where mass is paramount. With no weight classes, being heavier makes a wrestler more difficult for an opponent to push out of the ring or throw to the ground, a principle rooted in physics. This pursuit of bulk is achieved through a highly disciplined and traditional lifestyle. The daily regimen is scientifically structured to maximize weight gain; wrestlers wake up early and train intensely for hours on an empty stomach. This strenuous morning practice is designed to slow down their metabolism and increase hunger for their first meal of the day around midday.

This massive midday meal is followed by another large meal in the evening. The cornerstone of their diet is "chankonabe," a nutrient-dense stew packed with proteins like chicken, fish, and tofu, along with a variety of vegetables. While the stew itself can be quite healthy, wrestlers consume it in enormous quantities, often accompanied by several bowls of rice and sometimes beer to significantly increase their caloric intake. After their large lunch, wrestlers are required to take a long nap, a crucial step that encourages the body to convert the vast number of calories into body weight rather than burning them for energy.

Despite consuming between 5,000 and 8,000 calories daily, active wrestlers are protected from many obesity-related health issues due to their rigorous training. The intense exercise builds incredible muscle mass and tends to store fat just under the skin rather than around vital organs, which is less dangerous. However, this delicate balance is shattered upon retirement. Without the demanding daily training to offset their caloric intake, former wrestlers face a high risk of cardiovascular disease and other health problems, and their life expectancy is notably shorter than that of the average Japanese male.