Why hunger can return after dinner

Evening hunger can reflect a combination of biology and learned habits rather than simply the amount eaten earlier in the day, researchers explain. Appetite can naturally increase later in the day.

A University of Bath researcher points to changes in the hunger hormone ghrelin. Meals containing protein and fibre may help people feel full for longer, although needs differ between individuals.

A University of Birmingham researcher says repeated snacking in the same setting can make that setting a cue to eat. Watching television, for example, may trigger an established routine. Enjoyment of food can also influence cravings. The explanation is general information, not a universal diet prescription or medical treatment.