Top 10 · Updated October 2026
Lowest-Calorie Snack Bar
The 10 lightest snack bar products on this list range from 200 to 333.3 kcal per 100 g. The snack bar with the fewest calories per 100 g, so you can compare energy density at a glance. We checked 114 snack bar with complete data.
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Prebiotic Bar Peanut Butter Chocolate
supergut · 480 g -
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How we built this list
We ranked all published snack 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.