Green S

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

Yes — Green S is high in histamine. Green S (E142) is the green of tinned peas, mint sauce and mint confectionery, and it is another triarylmethane rather than an azo dye. It is not permitted in the United States, which is why a British mint sauce and an American one can look different. Elimination lists remove it with the rest of the synthetic colours. None of this is about histamine content: a colour carries none. Colours are on this page because the pseudoallergen-free elimination diet removes them as a class, and that diet is itself unproven in double-blind trials.

Yes — Green S is high in salicylate. A synthetic green colour used in tinned peas, mint products and confectionery, and one of the dyes listed as a salicylate cross-reactor.

Green S contains only low levels of FODMAPs. Green S is a synthetic dye, and there is no fermentable carbohydrate in it.

Green S contains only low levels of tyramine. Green S is a synthetic triarylmethane dye, and it contains no tyramine. It sits higher on the histamine axis than here, which is not a contradiction: that axis counts liberators - things that make the body release its own histamine - while this one counts content only. There is no tyramine liberator, because the body stores none to release. Amounts vary by brand and recipe, so always check the label of the exact product.