ONE Protein Bar

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GGR Score: 4.2

Product Highlights

20 g protein with less than 1 g sugar
Gluten-free
Whey protein isolate
Amazon rating of 4.7

Manufacturer: Categories: Protein Powder, Supplements

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In-Depth Review

ONE Protein Bar Review (2026): Did We Find The One?

Author: Chelsea Rae Bourgeois, MS, RDN, LD

Looking for your next favorite high-protein snack? Find out if this is the one for you with our ONE Protein Bar review. Read the full review.

Pros & Cons

Pros

Convenient
Affordable
Multiple flavors available
Low sugar

Cons

Some reports that new formula leaves a chemical aftertaste
Contains sucralose

Product Summary

ONE protein bars are available in a variety of dessert-inspired flavors, and offer up a high-protein, low-sugar snack.