âChampsâ â the biggest deal in Jamaica. What exactly is the Boys and Girls Championships? The only way to properly answer this question is to actually go to Kingston, Jamaica, at the end of March and witness the event that is affectionately and simply known as âChampsâ.
  It usually takes about 4 to 6 hours for a full stomach to digest the food. However, this varies from person to person, and if vomitting occurs, much less time. It takes â¦ from 12 to 24 hours for the food to completely leave the digestive/excremetory systems.ome meals can take 10 minutes start to finish  while others can take 30 minutes or o â¦ ver 3 or 4 hours. It also  depends on what you use to cook it.
so generally, food leaves the stomach about four hours after you eat it. it really depends on how big of a meal you've eaten, because the duodenum can only take in a small amount at a time for calorie absorption (i believe, on average, every 30 minutes or so it opens up to take in another handful of chyme). but, of course, digestion continues after food leaves the stomach. it goes on to the rest of the small intestine for further nutrient absorbtion, and then to the large intestine for water absorbtion. under normal circumstances, it can take 24-48 hours for a meal to fully leave your body.