Aluminium silicate

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

Yes — Aluminium silicate is high in nickel. Aluminium silicate is a clay, and clays are the classic carriers of trace nickel - the metal sits in the mineral lattice as it came out of the deposit. Used as an anti-caking agent, so it turns up in powders. One thing to weigh, from the regulation that governs it: nickel is a stated purity criterion for E 555 potassium aluminium silicate and for NO other silicate — not for this one. The metals routinely capped here are arsenic, lead, mercury and cadmium. Nickel travels with aluminium and clay out of the ore, and the law corroborates nothing about it for this particular additive.

Aluminium silicate contains only low levels of salicylate. Aluminium silicate is an anti-caking mineral. No salicylate content and no cross-reaction mechanism — present on this axis only as part of the additive block. Amounts vary by brand and recipe, so always check the label of the exact product.