How long does it take to digest canned tuna?

The digestion of canned tuna, like most proteins, typically takes about 2 to 4 hours in the stomach, depending on individual digestive health and the presence of other foods. After that, it continues to be processed in the small intestine, which can take an additional 3 to 5 hours. Overall, the complete digestion and absorption of tuna may take around 24 to 48 hours before it is fully eliminated from the body.