All products
6

Ingredient · Additive

isomalto-oligosaccharides (vegetable source)

Mixed · 6/10, higher is cleaner

How we reached this

Isomalto-oligosaccharides (IMO) — partial-fiber, partial-sugar profile. FDA does NOT recognize as dietary fiber post-2018 review. Marketed as fiber on many cleaner-label bars but glycemic impact closer to sugar than fiber.

Sources · 1

Also listed as

isomalto-oligosaccharides

Products containing this · 1

About this rating

Ratings run 1–10, higher is cleaner, and are set editorially against the sources above — see the methodology page for how an ingredient rating becomes part of a product score. Last reviewed 2026-05-25.