Professional sumo wrestlers consume roughly 5,000 calories per day, spread across just two large meals. That’s more than double the 2,000 to 2,500 calories recommended for an average adult male, and the way those calories are consumed is just as important as the amount.
Why Only Two Meals a Day
Sumo wrestlers skip breakfast entirely. Their mornings begin with two to three hours of intense training on an empty stomach. The first meal of the day comes at lunch, and the second is dinner. This pattern is deliberate. Training in a fasted state forces the body to conserve fuel, and when a massive meal finally arrives, the body is primed to store as much of it as possible. Over time, exercising without eating beforehand can lower resting metabolic rate, pushing the body further into fat-storage mode.
Between those two meals, some wrestlers also eat snacks or a late-night meal if needed to keep their calorie count high enough. But the core of the diet revolves around two enormous sittings.
What Those 5,000 Calories Look Like
The centerpiece of the sumo diet is chanko-nabe, a protein-rich hot pot stew. A typical batch includes chicken breast, pork sausage, cabbage, carrots, onions, peppers, brown rice, soy sauce, garlic, and ginger, all simmered together in a large communal pot. The macronutrient split is surprisingly balanced: about 37% protein, 34% carbohydrates, and 29% fat. It’s not junk food. The stew itself is nutrient-dense and built around whole ingredients.
The calories pile up through sheer volume. A single sitting might include five to ten bowls of white rice alongside the stew. Beer adds a significant number of empty calories on top. A wrestler might drink as many as six pints during the midday meal alone. Between the rice, the stew, and the alcohol, a single lunch can easily clear 2,500 calories or more.
The Post-Meal Nap
After lunch, sumo wrestlers do almost nothing. They take a long nap, resting until dinner. This isn’t laziness. It’s a calculated part of the weight-gain system. Eating a massive meal and then immediately going to sleep minimizes the number of calories burned through activity, directing more energy toward fat and tissue storage. The combination of fasted morning training, enormous meals, and prolonged rest periods is what builds the distinctive sumo body over months and years.
More Muscle Than You’d Expect
Despite their size, professional sumo wrestlers carry a surprising amount of muscle. The average professional wrestler weighs about 258 pounds (117 kg) with a body fat percentage around 26%. That’s high compared to the general population, but it means roughly three-quarters of their body weight is lean mass, including bone, organs, and a substantial amount of muscle built through daily grappling and resistance training.
Body composition also separates the elite from the rest. Wrestlers in the top Sekitori division have significantly more lean mass relative to their height than wrestlers in lower ranks. Researchers found that a specific threshold of lean mass, not just overall size, was one of the best physical predictors of whether a wrestler would reach the professional ranks. In sumo, bulk matters, but functional muscle matters more.
The Health Cost of 5,000 Calories
This eating pattern comes with serious long-term consequences. Sumo wrestlers between ages 35 and 74 have a significantly higher mortality rate than the general Japanese population. Their life expectancy is around 65 years, roughly 10 years shorter than average. The heavy body weight and high levels of visceral fat (the deep abdominal fat surrounding organs) expose wrestlers to hypertension, type 2 diabetes, heart disease, fatty liver disease, joint degeneration, and certain cancers. Cardiovascular disease is the leading cause of death among both active and retired wrestlers.
While active wrestlers offset some of these risks through intense daily training, retirement is where the danger spikes. Many wrestlers struggle to reduce their caloric intake after leaving the sport, and without hours of daily exercise, the metabolic consequences of carrying that much weight catch up quickly.