Ingredient ProfileAdditiveReviewed 2026-04-14

Potassium bromate

Potassium bromate: what it does in food, current safety notes, diet compatibility, and shopper guidance from IngrediCheck.

Aliases and label clues

Potassium bromatebromated flourflour improver

Overview

Potassium bromate is a flour improver that can strengthen dough and improve loaf volume in commercial baking. It is one of the clearest examples of an ingredient that remains legal in parts of the U.S. while many other markets have already rejected it.

Diet snapshot

Gluten freeNo
VeganYes
Low FODMAPDepends
Dairy freeDepends

What It Does in Food

Potassium bromate is most commonly used as dough improver and oxidizing agent in packaged food.

dough improveroxidizing agent

Category

Additive

Evidence and Regulatory Summary

FDA still allows potassium bromate in narrow baking uses, but the ingredient is under pressure from state action, retailer reformulation, and long-running toxicology concerns. That combination makes it more than just a theoretical rulebook debate.

Diet Notes

Potassium bromate is primarily a bread-supply issue, not a diet-identity issue. The practical concern is whether a bakery still relies on it when plenty of competing loaves do not.

Shopper Guidance

If you buy packaged bread frequently, potassium bromate is one of the easiest legacy additives to screen out. The ingredient is usually avoidable, which makes label comparison more actionable than hand-wringing.

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