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Sodium Bisulfate

Low concern

Sodium bisulfate is FDA GRAS (GRN 3) and AAFCO-approved as a feed additive. It functions as a pH-lowering acidulant and is metabolized to sodium and sulfate.

Found in

634 products

What it is

Sodium hydrogen sulfate (NaHSO4), an inorganic acid salt used to lower pH.

Acidulant and pH adjuster; reduces pH for preservation, color, and texture in beverages, dressings, and fillings.

Why it's flagged

not to be confused with sulfite preservatives

What regulators actually say

"Sodium bisulfate — GRAS Notice No. 000003"

FDA GRAS Notice Inventory — hfpappexternal.fda.gov

"Generally Recognized as Safe — substances added to food that are generally recognized as safe"

FDA — fda.gov

Regulatory status

United States — FDA

GRAS (GRN 000003)

European Union — EFSA

Not commonly listed as food additive in EU

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