No food is banned here. The trick with snacking isn't willpower, it's picking snacks that actually fill you up for the calories, and gently stepping down from the heavy stuff rather than going cold turkey. That's especially true on a GLP-1, where you've got less room, so every snack should earn its place.
Quick answer: the best low calorie snacks are high in protein, fibre or water, so they keep you full. Think 0% Greek yogurt, berries, veg sticks, air-popped popcorn, edamame or a boiled egg. Then use the swap ladder below to ease off crisps, chocolate and biscuits without feeling deprived.
What makes a good snack
Three things keep a snack filling for few calories: protein, fibre and water. A protein or fibre snack tells your body you've eaten. A quick sugary one spikes and fades, and you're hungry again in twenty minutes. So the goal isn't just "low calorie", it's "low calorie and actually satisfying".
The best low calorie snacks
🟢 Top tier: filling and light
- 0% Greek yogurt: high protein, thick and creamy, around 55 calories per 100g. Add berries.
- Berries and other light fruit: water and fibre for very little. See the fruit tier list.
- Veg sticks with a light dip: carrot, pepper, cucumber with salsa or low-fat hummus.
- Air-popped popcorn: a big bowl for around 100 calories, real crunch.
- Edamame: protein and fibre, surprisingly filling.
- A boiled egg: about 70 calories of pure protein and staying power.
- A small tin of tuna or a few prawns: protein with almost no calories.
🟢 Good tier: handy and sensible
- Rice cakes or oatcakes with a scrape of nut butter or low-fat cheese.
- A piece of fruit with a few nuts for staying power.
- A couple of squares of dark chocolate: less sugar than milk chocolate and easier to stop at.
- A skinny latte or hot chocolate made with skimmed milk: warm and slow to drink.
The swap ladder
You don't have to quit your favourites overnight. Step down a rung at a time. Each swap keeps the craving sorted for fewer calories, and after a few weeks the lighter version just becomes your normal.
| Instead of | Try | Why |
|---|---|---|
| Crisps | Air-popped popcorn | Same crunch, a fraction of the calories |
| Milk chocolate bar | 2 squares of dark chocolate | Less sugar, easier to stop |
| A cream egg | A square of 70% dark chocolate | Far less sugar for the same chocolate hit |
| Ice cream | 0% Greek yogurt with frozen berries | Protein instead of sugar and cream |
| Biscuits | Oatcakes or a couple of dates | More fibre, slower energy |
| A fizzy drink | Sparkling water with lime | The fizz without the sugar |
| A big handful of nuts | A measured 20-30g portion | Same nutrition, calories under control |
The point isn't to ban the top row. It's to make the bottom row your default, and keep the treats as treats.
Sneaky ones to watch
A few snacks wear a "healthy" label but are calorie-dense: granola and cereal bars, dried fruit (all the sugar, none of the water), smoothies (easy to drink 300 calories), and nuts straight from the bag. None are off-limits, just weigh a portion so they don't quietly undo your day. If you're not sure what something costs you, that's exactly what a quick check is for.
Check a snack in seconds
Type any snack into the free counter and see the calories and protein before you reach for it.
Try the free macro counterFAQs
What is the most filling low calorie snack?
High-protein ones win. 0% Greek yogurt, a boiled egg, edamame or tuna keep you fuller for longer than a sugary snack of the same calories.
Is popcorn good for weight loss?
Air-popped, yes. A big bowl is around 100 calories with real fibre. The cinema and toffee kinds are a different story.
What is a good late-night snack?
Something light and protein-led, like 0% Greek yogurt with berries, or a small bowl of edamame. It settles a craving without a big calorie hit before bed.
