Sodium Metabisulfite

Sodium Metabisulfite is notable for histamine and salicylate. Clear on tyramine, sucrose, FODMAPs, lactose, oligosaccharides, sorbitol, fructose, nickel, oxalates and gluten.

Yes — Sodium Metabisulfite is high in histamine. Sodium metabisulfite is the sodium salt in its dimeric form, the one that turns up most often on a wine or dried-fruit label, 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. If a label says sulphites without an E number, this is the most likely one. It behaves like the rest of the family: no histamine of its own, and a sensitivity that happens to travel in the foods this axis already covers.

Yes — Sodium Metabisulfite is high in salicylate. Sodium Metabisulfite is a sulfite, which is a separate intolerance from salicylate, but the two are so often eliminated together — and so often co-present in dried fruit and wine — that it is flagged on this axis. Amounts vary by brand and recipe, so always check the label of the exact product.