Propane-1,2-diol alginate

Propane-1,2-diol alginate is notable for FODMAPs, histamine and nickel. Clear on lactose, gluten, fructose, oligosaccharides, sorbitol, sucrose, tyramine, salicylate and oxalates.

Propane-1,2-diol alginate contains only low levels of FODMAPs. Propylene glycol alginate comes from brown seaweed and ferments in the colon - but slowly and evenly, without the fast osmotic pull that makes a FODMAP a FODMAP. Low rather than none, because it does feed the bacteria; low rather than high, because it does it gently and is used in fractions of a percent.

Propane-1,2-diol alginate contains only low levels of histamine. Propylene glycol alginate is that seaweed alginate modified to survive acid drinks and hold beer foam. It is a chain of sugars, and sugars are not what bacteria decarboxylate into an amine.

Propane-1,2-diol alginate contains only low levels of nickel. Propylene glycol alginate is a seaweed extract chemically modified to survive acid drinks and hold beer foam. Two origins meet in it, the seaweed and the synthesis, and neither contributes much. Seaweed is the reason nickel is asked about here at all: it concentrates trace elements from seawater, and the review behind this level is about exactly that load in seaweed and in the ingredients made from it. Amounts vary by brand and recipe, so always check the label of the exact product.