Top 10 · Updated October 2026

Lowest-Calorie Breakfast Bar

The 10 lightest breakfast bar products on this list range from 225 to 420 kcal per 100 g. The breakfast bar with the fewest calories per 100 g, so you can compare energy density at a glance. We checked 14 breakfast bar with complete data.

1

Miettes de thon listao à l'huile de tournesol

Nature Valley · 104 g

a NOVA 4 225 kcal 0 g sugar 23 g protein 15 g fat
2

Oatmeal Crumble Strawberry

Nature's Bakery · 12 bars

d NOVA 4 350 kcal 32.5 g sugar 5 g protein 6.3 g fat
3

Nutri Grain Strawberry

Kellogg's · 1.3 oz, 37g

d NOVA 4 351 kcal 29.7 g sugar 5.4 g protein 9.5 g fat
4

Nutri Grain Soft Baked Breakfast Bars

Kellogg's · 64 bars - 2.36kg

d NOVA 4 351 kcal 32.4 g sugar 5.4 g protein 9.5 g fat
5

Organic Super Bar Blueberry

Yumi · 6 oz

c NOVA 4 353 kcal 17.6 g sugar 5.9 g protein 10.3 g fat
6

Soft Bakes Strawberry Filled

Belvita · 250g

c NOVA 4 368 kcal 18 g sugar 4.8 g protein 10 g fat

Also: Palm oil free
7

The Better Breakfast Bar

Members Mark

c NOVA 4 375 kcal 30 g sugar 5 g protein 10 g fat

Also: Palm oil free
8

The BETTER BREAKFAST BAR APPLE CINNAMON

Members Mark

c NOVA 4 375 kcal 30 g sugar 5 g protein 10 g fat

Also: Palm oil free
9

Z bar

Clif

d 389 kcal 27.8 g sugar 5.6 g protein 11.1 g fat
10

Soft Baked Breakfast Bars Banana Chocolate Chip

Nature Valley

d NOVA 4 420 kcal 22 g sugar 6 g protein 18 g fat

How we built this list

We ranked all published breakfast bar 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 breakfast bar rankings

Healthiest Breakfast Bar by Nutri-Score Highest-Protein Breakfast Bar Least Processed Breakfast Bar Best Low-Sugar Breakfast Bar All breakfast bar