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ONE Protein Bar

Common questions

Is ONE Protein Bar healthy?

ONE Protein Bar scores 40/100 on Scout's independent analysis of ingredients, additives, and lab results — a below-average score in Scout's analysis. ONE Protein Bar scores 40/100.

Does ONE Protein Bar contain seed oils?

Yes — Scout's ingredient analysis flags seed oils in ONE Protein Bar, and that is reflected in its score.

How processed is ONE Protein Bar?

ONE Protein Bar is NOVA Group 4: Ultra-Processed Foods.

How does ONE Protein Bar compare to other protein bars?

ONE Protein Bar ranks #44 of 71 protein bars in Scout's independent rankings. The current top score in the category is Jacob Protein Bar at 96/100.

Which ingredients drive ONE Protein Bar's score?

In Scout's ingredient-by-ingredient analysis, Milk Protein Isolate, Whey Protein Isolate, Whey Protein Concentrate count in its favor; Maltitol, Palm Kernel Oil, Sucralose are flagged as ingredients of concern. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

Healthy alternatives

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Jacob Protein Bar
Jacob
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Jacob Protein Bar Mixed Berry
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Powerfit Foods Bare Bar
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Santa Cruz Paleo Protein Bar Chocolate
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See more

ONE Protein Bar

ONE
Contains seed oils
40 Poor

At a glance

Beneficial ingredients 3
Harmful ingredients 5
Owned by Hershey
Category Protein Bars
Summary

ONE Protein Bar scores 40/100. Delivers 20g protein with 1g sugar, but the ingredient quality tells a different story. Maltitol, palm kernel oil, sucralose, soy lecithin, and soluble corn fiber dominate. The protein blend is decent but buried under processed fillers and artificial sweeteners. The 1g sugar claim is misleading — maltitol still raises blood sugar.

Key ingredients 10

Maltitol
Bad

Sugar alcohol with the highest GI among sugar alcohols. Causes significant GI distress.

See more about Maltitol →
Palm Kernel Oil
Bad

Over 80% saturated fat. Cheap filler fat.

See more about Palm Kernel Oil →
Sucralose
Bad

Chlorinated artificial sweetener linked to gut microbiome disruption.

See more about Sucralose →
Soy Lecithin
Bad

Processed emulsifier typically derived from GMO soybeans.

See more about Soy Lecithin →
Natural Flavor
Bad

Vague catch-all term with zero transparency.

See more about Natural Flavor →
Soluble Corn Fiber
Neutral

Processed fiber to boost label claims.

See more about Soluble Corn Fiber →
Glycerin
Neutral

Humectant for texture.

See more about Glycerin →
Milk Protein Isolate
Good

High-quality complete protein containing both whey and casein.

See more about Milk Protein Isolate →
Whey Protein Concentrate
Good

Well-studied protein source retaining bioactive compounds.

See more about Whey Protein Concentrate →
Whey Protein Isolate
Very Good

Premium protein with excellent bioavailability.

See more about Whey Protein Isolate →

Processing

Group 4 · Ultra-processed

Ultra-Processed Foods

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