High-fructose corn syrup

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

Yes — High-fructose corn syrup is high in FODMAPs. High-fructose corn syrup is less of a problem here than its name and reputation suggest. The common grades are 42 or 55 percent fructose, which is close to the half-and-half of sucrose - so most of the fructose has glucose to travel with. Agave, at 80 percent, is the worse sweetener despite the better image.

Yes — High-fructose corn syrup is high in fructose. High-fructose corn syrup is glucose syrup with part of the glucose enzymatically flipped to fructose - the ratio is set in the factory, and the common grades run 42% or 55% fructose. The 55 grade therefore carries more fructose than glucose, which is what puts it on this axis; the 42 does not.

High-fructose corn syrup contains only low levels of sucrose. High-fructose corn syrup is glucose and fructose already separate - despite the name it contains no sucrose. It is a problem on the fructose axis and not on this one, which is the clearest example of why the two are different questions. Amounts vary by brand and recipe, so always check the label of the exact product.