Mid-afternoon. Lunch has left the building. Dinner is still a rumour.
You need something, and the best filling snacks are not the ones that sound most virtuous. They are built from protein, fibre and a bit of bulk, and they are things you actually want to eat, so the biscuit tin stays shut until dinner.
Here is what works, why it works, and how to make it taste like a treat.
Key Takeaways
- Pairing: Protein, fibre and plenty of actual food are a good place to start. Think Greek yoghurt with berries, oatcakes with cheese, or hummus with vegetable sticks.
- Bulk: In the 1995 satiety index study, boiled potatoes kept people fuller than any other food tested, calorie for calorie, while croissants were the least filling.
- Satisfaction: A snack only works if you actually want to eat it. Start with something substantial, then add the bit that makes you look forward to it.
- Taste: Filling doesn't have to mean joyless. Start with something substantial, then add something ridiculously delicious.
What makes a snack filling?
A snack is filling when it brings protein, fibre, water or plain physical bulk. Protein can help you feel satisfied, fibre brings bulk, and water-rich foods give you more to actually eat. The snacks that stick around tend to have a bit of substance to them. The most filling snacks usually combine two of those rather than relying on one.
A 2012 review in the British Journal of Nutrition found that eating more protein keeps people feeling fuller for longer. Fibre is the other half, and the British Nutrition Foundation says UK adults average about 16g a day against a recommended 30g. Snacks are an easy place to catch up.
Then there is the satiety index of common foods, a 1995 study that gave people equal-calorie portions of different foods and measured how full they felt afterwards. Boiled potatoes came top. Croissants came bottom, around seven times less filling.
The pattern was interesting: foods with more weight and water tended to do well, while simply being rich or fatty didn't necessarily make something more satisfying.
And here is the bit the snack lists skip. The foods people rated tastiest tended to be the least filling. Which explains a great deal about crisps.
That does not mean a filling snack has to be joyless. It means building it the other way round: a filling base, then a small amount of something ridiculously good on top.
Take cold, thick Greek yoghurt and drag a spoonful of Messyface through it. Dark, glossy and deeply caramel-like, with a nutty edge that stops it going sickly. Leave the swirl unstirred. The yoghurt does the filling. The swirl does the rest.
The ridiculous part? It is just grapes and sesame. Grape molasses and sesame tahini, and that is the whole ingredients list. The sweetness comes from the grapes. No refined sugar. No palm oil.
Moreish is one of the words we hear most often from people who try Messyface, which is worth knowing before you open a jar next to a tub of yoghurt.
What are the best filling snacks?
The best filling snacks pair protein or fibre with something you enjoy eating. There are plenty of good places to start: Greek yoghurt, boiled eggs, cottage cheese, hummus with vegetables, popcorn, roasted chickpeas, oatcakes with cheese, nuts, apple with peanut butter and stuffed dates. Here are fifteen, grouped by what does the heavy lifting.
Protein-led snacks
- Greek yoghurt with fruit. Thick, cold, and far more protein than something that eats like pudding has any right to. Berries on top, or a dark swirl for the full effect. Our high-protein yoghurt bowl works just as well at 4pm as it does at 8am.
- Boiled eggs. Cook a batch on Sunday and keep them in the fridge. A pinch of salt, maybe an oatcake alongside. Cheap, portable, done.
- Cottage cheese. Having a proper comeback. Pile it onto a rye crispbread with sliced tomato and black pepper, or go sweet with pineapple.
- Tinned fish on rye. Sardines or mackerel mashed onto rye bread with a squeeze of lemon. Savoury, salty and properly substantial.
- Edamame. Frozen beans, a few minutes in boiling water, sea salt. Popping them out of the pods slows you down, which is half the point.
Fibre and crunch snacks
- Hummus and vegetable sticks. Chickpeas bring fibre and some protein, carrots and peppers bring crunch and water. Scoop generously.
- Popcorn. Made at home, a big bowl comes in at relatively few calories. Salt, smoked paprika, or both.
- Roasted chickpeas. Drain a tin, pat dry, toss with oil and spices, and roast at 200°C until properly crunchy, usually 25 to 30 minutes. Shake the tray halfway.
- Oatcakes and cheese. Oats for fibre, cheese for protein, and a snack that sits happily in the cupboard for weeks. See our healthy snacks for work for more cupboard-friendly ideas.
- Overnight oats. Oats soaked in milk or yoghurt until thick and spoonable. Our strawberry caramel overnight oats are the version worth making twice.
Sweet snacks that still fill you up
- Apple slices with peanut butter. Crunch, fibre, protein and fat on one plate. Or spread on Messyface Peanut for a darker, sweeter, thicker version.
- Stuffed dates. Sticky, chewy, seriously sweet. Split them and fill with nut butter, like our peanut butter caramel crunch dates.
- Nuts and dried fruit. A small handful of almonds with a couple of dried apricots. Almonds with a couple of dried apricots give you crunch, chew and sweetness in the same handful.
- Chia pudding. Chia seeds swell overnight in milk into something thick and wobbly. Top with fruit.
-
Energy bites. Oats, nut butter and chopped dates, rolled into balls and kept in the fridge. Make a batch, eat one, then another.
How many calories should a filling snack be?
There isn't one useful number. How much you want from a snack depends on how hungry you are, what you've eaten already and how far away the next meal is.
A boiled egg when dinner is around the corner is a very different proposition from yoghurt, fruit and oatcakes when lunch disappeared three hours ago.
Calories can tell you how much energy a food contains, but they don't tell you whether you'll find it satisfying. Protein, fibre, texture, portion size and whether you actually enjoy eating the thing, all matter too.
So rather than engineering the mathematically perfect snack, size it by the gap. A little something if dinner is nearly ready. Something with a bit more heft if it isn't.
What should you eat when you want something sweet?
When you want something sweet, pair it with something filling rather than eating it on its own. Apple with nut butter, yoghurt with a swirl of something rich, or dates stuffed with nut butter all answer a sweet craving while bringing fibre or protein along to keep you full.
A craving is not a character flaw. It is usually just the afternoon.
Try this. Spoon a little Messyface into a small bowl and warm it for about 5 seconds in the microwave. It loosens into a glossy, pourable ribbon. Fan out cold apple slices and pour it over. It runs between them and pools at the edge of the plate.
Crunchy apple. Warm caramel. Sticky fingers. Absolutely glorious.
Naturally sweet still means sweet. Messyface gets its sweetness from grape molasses, alongside sesame tahini. It isn't the filling part of this particular snack. It's the reason you want the apple.
The same warm spoonful over a scoop of vanilla ice cream after dinner is a different conversation entirely.
One important, non-messy bit: Messyface contains sesame, and Messyface Peanut also contains peanuts. Both are made in a facility that also handles nuts.
Which snacks feel filling but don't last?
Snacks that feel filling but wear off quickly are usually low in protein and fibre, or come in a glass. Smoothies, a plain rice cake, crisps and some cereal bars can all hit the spot, but if you're properly hungry you might want something alongside them with a bit more substance.
| Snack | Why it can wear off | Give it a partner |
|---|---|---|
| Smoothie | Easy to drink fast, nothing to chew | A boiled egg or a handful of nuts |
| Plain rice cake | Mostly air and crunch | Cottage cheese, hummus or nut butter |
| Crisps | Light, salty, easy to keep eating | Hummus and vegetable sticks |
| Cereal bar | Protein and fibre vary a lot | Greek yoghurt |
| Fruit on its own | Good fibre, little protein | Peanut butter or cheese |
None of these are bad snacks. They just do better with backup.
How do you make filling snacks you'll actually eat?
Make filling snacks easy to reach before hunger arrives. Boil eggs and portion hummus at the weekend, keep oatcakes and nuts in the cupboard, and have at least one snack you properly look forward to. A filling snack nobody wants stays in the fridge, however sensible it is.
You open the fridge, stand in its light, close it again, then open the cupboard as though something might have changed in there in the last forty seconds. Nothing has.
That moment is where a bit of preparation pays off. A pot of roasted chickpeas, a tub of yoghurt, an apple and a knife, sitting there ready.
And make one of them exciting. Food isn't eaten from a spreadsheet. For more grab-and-go ideas, see our on-the-go snacks.
Top Tips
- If something needs a bit more staying power, give it a sidekick: fruit with nut butter, crackers with cheese, crisps with hummus.
- Crunch helps. Apples, vegetables, nuts and popcorn all make a snack feel like something you've actually eaten.
- Batch cook at the weekend: eggs, roasted chickpeas and energy bites all keep for days.
- Warm a spoonful of Messyface in a small bowl for 5 seconds before drizzling. The spoonful, never the jar.
- Keep a clean spoon handy. You will want it.
Frequently asked questions
What is the most filling snack?
In the 1995 satiety index study, boiled potatoes were the most filling food tested, calorie for calorie. For everyday snacking, Greek yoghurt, boiled eggs, cottage cheese and hummus with vegetables are reliable choices, combining protein, fibre or water with enough bulk to keep you satisfied.
What snack keeps you full the longest?
Snacks with some protein, fibre and substance are a good place to start. Greek yoghurt with berries, apple slices with peanut butter, oatcakes with cheese and hummus with carrot sticks are all good examples. Protein helps keep hunger down and fibre adds bulk, so hunger takes longer to return.
Are nuts a good filling snack?
Yes. Nuts contain protein, fibre and fat, and the British Nutrition Foundation notes they can support satiety. Pair them with fruit or a couple of dried apricots for extra fibre and sweetness.
What is a good filling snack under 100 calories?
If you're specifically looking for something under 100 calories, fruit, vegetable sticks, a boiled egg or a small bowl of plain popcorn can fit the bill. But if you're properly hungry, don't be surprised if a 100-calorie target leaves you wanting something else ten minutes later.
What can I eat when I'm hungry between meals?
When you are hungry between meals, eat something with protein or fibre rather than something quick and light. Fruit with nut butter, a boiled egg, oatcakes with cheese or yoghurt are all easy. If dinner is close, keep it small. If it is hours away, have something more substantial.
So, what are the best filling snacks?
The best filling snacks have some substance to them, yoghurt, eggs, hummus, oatcakes, apples, dates and, crucially, they're things you actually fancy eating. Keep a few around and the strange no-man's-land between lunch and dinner gets considerably easier.
And when you want the snack to feel like a treat, there is a jar that tastes dark, fudgy and deeply caramel-like, far naughtier than two ingredients have any right to. Just grapes and sesame.
That one's Messyface.
Warm a spoonful. Pour it over cold apple slices. Lick the plate. Nobody is watching.
