How much oil stays in canned food after draining?

Added: 2026-05-28

[00:00:00]You think you are saving calories by draining that can of tuna. Most people tip the can over the sink and wait for the drips to stop. But the oil does more than just sit there. It soaks into the fibers of the fish while it sits on the shelf.

[00:00:13]Researchers found that even after thorough draining, about 15 to 25% of that oil stays inside. If a can has 20 g of oil, you are still eating about 4 g of it. This adds 50 extra calories to your lunch.

[00:00:28]Water-packed cans of oil taste this because the liquid does not bond with the protein.

[00:00:33]Check the label next time.