Last reviewed May 2026
Is ONE Protein Bars vegan?
Brand: ONE BarManufacturer: The Hershey CompanySnacks / Protein
Not Vegan
Contains animal-derived ingredients.
In short
No — Contains whey protein isolate.
01 · The verdict
The verdict
Low sugar protein bars.
02 · Reasoning
Why is it Not Vegan?
Contains whey protein isolate. Not vegan.
03 · Regions
Regions & availability
USA
04 · Alternatives
Vegan alternatives
No Cow Bars
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Frequently asked
FAQ
Are ONE bars vegan?
No, they contain dairy.
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