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It is actually said through all text books and book i have read that it is 2 to 5 hours that food stays in the stomach.

According to the Mayo Clinic, it is 6-8 hours for both the stomach and small intestine. The problem is that there exist other factors that never seem to be mentioned.

The single biggest factor is whether the digestive fluids are at full strength, or have they have been cooled or diluted by liquids taken with meal, which is the sure way to stop or slow a chemical reaction? If liquids are consumed with meal (common error), the length of the digestion process is lengthened, which exposes the stomach tissue and the esophagus to acid erosion, elevating risk of ulcers and esophageal cancer.

The second "time" factor is the complexity of the food eaten. Digesting a huge Thanksgiving feast requires a far greater release of digestive juices and time than a meal consisting of a large salad and piece of fish. Up to 80% of the energy available in a large complex meal can be used just in the digestion process.

A large complex meal of proteins, vegetables, starches, and carbohydrates can stay in just the stomach for up to 8 hours.

Unknowingly, people who snack consistently are also lengthening digestion time, as each new dose of undigested food will delay the movement of the digested food from the stomach into the small intestine.

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11y ago

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