"Glucose-fructose syrup" is a term used to describe a sweetener that contain a mixture of glucose and fructose. Sometimes it is written as “fructose-glucose”.   The fructose content in glucose-fructose syrup can vary depending on the specific syrup and its production methods. In some cases, the fructose content may be around 42% to 55%, similar to HFCS.   When the fructose is in excess of the glucose, as it would be if the fructose is 55%, then it would be high FODMAP. In Canada, an ingredient listed as glucose-fructose means HFCS.   It's important to note that the specific composition and labeling requirements can differ amongst the US, Canada and Europe, and they may even vary within different countries in Europe.    Some manufacturers provide additional information on their websites or product literature about the fructose-to-glucose ratio in their syrups. If you're concerned about the exact ratio, you might need to do a bit of research specific to the brand or product.   Depending on the country or region, there might be labeling regulations that require certain terms or disclosures for products with specific sugar compositions. However, this can vary, so it's best to check local regulations.   If you're seeking detailed information about the fructose-to-glucose ratio, you can consider reaching out to the manufacturer directly. They may be able to provide more specific information about their product's composition.   While this is not foolproof, if it is listed as “fructose-glucose” we assume fructose is in greater proportion and that the ingredient would not be appropriate during the Elimination Phase of the low FODMAP diet. Also, in general, if you know that fructose is an issue for you digestively, you might want to steer clear altogether. We have an article for you on Fructose Intolerance & Malabsorption.