Is eating late at night bad for you? Now and then, no. But a big new study found that people who regularly eat after dinner or after bedtime have a higher risk of liver disease, so the habit might be worth a rethink.
If your evenings look like dinner at 7, three episodes of The Traitors on catch-up and toast at 10:15pm, you're in very good company. Here's what the research found, and how to cut back without banning snacks altogether.
The quick version
- Regularly eating late was linked to a 20 to 30% higher risk of liver disease in a study of nearly 200,000 people.
- It shows a link, not proof. The odd late snack is unlikely to be a problem.
- Most late-night eating is about tiredness, boredom or habit, not hunger.
- Small swaps, like a more filling dinner, make the biggest difference.
Is eating late at night bad for you?
Occasionally, no. But a 2026 study of nearly 200,000 people found that regularly eating after dinner or after bedtime was linked to a 20 to 30% higher risk of liver disease, including fatty liver disease and cirrhosis. The study was observational, so it shows a link rather than proof.
What did the study find?
Researchers at Oregon Health & Science University looked at data from three long-running US health studies (Wilechansky et al., 2026). People who regularly ate late had a 20 to 30% higher risk of liver disease than those who didn't.
Some context before you bin the bread. People reported their own eating habits, other factors could explain the pattern, and only a small number of people with fatty liver disease go on to develop serious problems. The team is now running a trial to see whether eating earlier actually improves liver health.
Interesting? Yes. Reason to panic about a slice of toast? No.
Why does meal timing matter?
Your body runs on a roughly 24-hour clock, and it's generally better set up to deal with food earlier in the day. A late snack now and then is no big deal. It's doing it every night for years that the researchers think may add up.
Why do I get hungry late at night?
Most of the time, it isn't really hunger. It's tiredness, boredom, or that "I deserve this" feeling after a long day. I'm the first to admit a bad day and a biscuit tin are a dangerous combination.
The good news? Habits are far easier to change than biology.
Running on empty by the evening? Iron, magnesium and vitamins B6 and B12 all contribute to the reduction of tiredness and fatigue. Take the ALYVE quiz to see if your diet is covering the basics.
How to stop late-night snacking
Eat a proper dinner. Protein, fibre and healthy fats keep you fuller for longer, so there's less to "top up" later.
Close the kitchen, gently. Tidying up or brushing your teeth after dinner is a surprisingly effective signal that eating is done for the day.
Bring it forward. Love an evening snack? Have it a little earlier rather than cutting it out. Thirty minutes earlier is still progress, and easy wins are the ones that stick.
When to speak to your GP
If you have a liver condition, diabetes or another health condition, or you're pregnant or taking medication, speak to your GP before making big changes to when or how you eat.
Sorry, 10:15pm toast. It's not you, it's your timing.
Want help building an evening routine that actually sticks? Take the ALYVE quiz, or book a call with one of our nutritionists.
Frequently asked questions
Is it bad to eat late at night?
Occasionally, no. A 2026 study of nearly 200,000 people linked regularly eating after dinner or after bedtime to a 20 to 30% higher risk of liver disease. It shows a link rather than proof, so the habit matters more than the odd late snack.
What time should you stop eating at night?
There's no proven cut-off, and the study didn't set one. Having your last proper meal a little earlier, and leaving a gap before bed, is a simple place to start.
Why do I get hungry late at night?
Often it isn't true hunger. Tiredness, boredom, habit and a dinner that didn't quite fill you up are the usual culprits.
References
Wilechansky, R.M., Casey, K., McHill, A.W., Chan, A.T. and Simon, T.G. (2026). [Article title to confirm]. Clinical Gastroenterology and Hepatology. Available at: https://doi.org/10.1016/j.cgh.2026.09.047
