Top 10 · Updated October 2026

Lowest-Calorie Flapjack

The 10 lightest flapjack products on this list range from 328 to 429 kcal per 100 g. The flapjack with the fewest calories per 100 g, so you can compare energy density at a glance. We checked 26 flapjack with complete data.

1

Raw Protein (Honey Berry)

Warrior

328 kcal 4.8 g sugar 26.7 g protein 4.1 g fat
2

Bakewell Flapjack

Oh So… Scrummy · 110g

e NOVA 4 389 kcal 20.2 g sugar 8.8 g protein 18.3 g fat

Also: Vegetarian
3

Fruity Flapjack

Asda · 52 g

NOVA 4 390 kcal 5.8 g protein 13.5 g fat

Also: Palm oil free
4

Strawberry jam flapjack

Bramble Foods · 80g

e 411 kcal 61 g sugar 4 g protein 9.1 g fat
5

Apricot & Coconut Oat Bars 3 x

e NOVA 4 418 kcal 22.4 g sugar 8.1 g protein 18 g fat

Also: Palm oil free · Vegan · Vegetarian
6

Chocolate Chip Flapjack

Hollylane · 80g

c NOVA 4 424 kcal 17.5 g sugar 6.3 g protein 16.4 g fat

Also: Palm oil free
7

Lively lemon flapjack

Graze · 53g

c NOVA 4 427 kcal 12 g sugar 6.2 g protein 21 g fat
8

Oat Flapjack with Golden Syrup

Bobbys

e 427 kcal 27.8 g sugar 5.9 g protein 21.1 g fat
9

Lemon Drizzle Flapjack

Graze

c NOVA 4 428 kcal 11.8 g sugar 6.2 g protein 22 g fat

Also: Vegetarian
10

All Butter Flapjack Mini Bites

Sainsbury's

e NOVA 4 429 kcal 28.5 g sugar 5.8 g protein 17 g fat

Also: Palm oil free · Vegetarian · No additives

How we built this list

We ranked all published flapjack on Foodmetria that have a photo and the required nutrition data, using values per 100 g from the product label. Ties are broken by Nutri-Score and by how often shoppers scan the product. Rankings update automatically as label data changes. Read our methodology.

More flapjack rankings

Healthiest Flapjack by Nutri-Score Highest-Protein Flapjack Least Processed Flapjack Best Low-Sugar Flapjack All flapjack