Potassium sulfite
Other names potassium sulphite, E225
Potassium sulfite: high in histamine. If you're sensitive to any of these, check it against your profile before eating.
Intolerances
- Histamine (+liberators / DAO inhibitors)High
Potassium sulfite is the potassium salt of the group, and sulfites are not documented as inhibitors of DAO, the enzyme that clears histamine. Sulfites are here because their intolerance looks like histamine intolerance and travels in the same foods — not because a mechanism links them. The swap changes the nutrition label and nothing about this axis: it raises the same separate sulfite question as the sodium form and no other.
Sources· 4
- Comas-Baste et al., Biomolecules 10:1181 (2020)
- Maintz & Novak, Am J Clin Nutr 2007
- Reg. (EU) No 1169/2011 Annex II for the 10 mg/kg declaration
- EFSA (2016), re-evaluation of sulfur dioxide and the sulfites, EFSA Journal 14(4):4438
- TyramineNone
- SalicylateNone
- SucroseNone
- FODMAPsNone
- LactoseFODMAPsNone
- OligosaccharidesFODMAPsNone
- SorbitolFODMAPsNone
- FructoseFODMAPsNone
- NickelNone
- OxalatesNone
- GlutenNo
Intolerance levels are based on our documented scientific sources. See sources →
React to Histamine (+liberators / DAO inhibitors)? Check these too
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Frequently asked questions
Which intolerances does potassium sulfite affect?
Potassium sulfite is notable for histamine. Clear on tyramine, salicylate, sucrose, FODMAPs, lactose, oligosaccharides, sorbitol, fructose, nickel, oxalates and gluten.
Does potassium sulfite contain histamine?
Yes — potassium sulfite is high in histamine. Potassium sulfite is the potassium salt of the group, and sulfites are not documented as inhibitors of DAO, the enzyme that clears histamine. Sulfites are here because their intolerance looks like histamine intolerance and travels in the same foods — not because a mechanism links them. The swap changes the nutrition label and nothing about this axis: it raises the same separate sulfite question as the sodium form and no other. Amounts vary by brand and recipe, so always check the label of the exact product.
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