Glucose syrup

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

Glucose syrup contains only low levels of FODMAPs. Glucose syrup is glucose, and glucose is the one sugar this axis never counts. It is absorbed actively and completely in the small intestine whatever the dose - no transporter to saturate, no enzyme that might be missing, nothing left to ferment. It even helps: glucose carries fructose across the gut wall with it.

Glucose syrup contains only low levels of oligosaccharides. Glucose syrup is glucose and short glucose chains joined the way starch is, not the way an oligosaccharide is - alpha-1,4 - which human amylase and maltase split completely in the small intestine. Nothing reaches the colon, which is the test this axis applies.

Glucose syrup contains only low levels of sucrose. Glucose syrup contains no sucrose at all - it is starch broken down into glucose chains and free glucose. Nothing needs sucrase to handle it, which makes it one of the safer sweeteners on this axis. Amounts vary by brand and recipe, so always check the label of the exact product.