If you still like eating good food, just be an ironman.. He can easily use up what he has eaten... quality food is the fuel to being an ironman...

An Ironman Triathlon is one of a series of long-distance triathlon races
organized by the World Triathlon Corporation (WTC) consisting of a 2.4-mile (3.86 km) swim, a 112-mile (180.25 km) bikeand a marathon 26.2-mile (42.2 km) run, raced in that order and without a break. Most Ironman events have a strict time limit of 17 hours to complete the race, where the Ironman race starts at 7:00 AM, the mandatory swim cut off for the 2.4-mile (3.9 km) swim is 2 hours 20 minutes, the bike cut off time is 5:30 PM, and all finishers must complete their marathon by midnight.