All Quinnoa articles in one place.
Sorbitol is a sugar alcohol found naturally in selected fruits and manufactured for sugar-free candy, gum, baked goods, oral-care products, and liquid medicines. It is incompletely absorbed, provides fewer calories than sucrose, and causes a smaller glucose response. The same incomplete absorption explains its osmotic and laxative effects when intake exceeds individual tolerance.
Acacia fiber, also called gum arabic, is a plant exudate rich in complex polysaccharides obtained mainly from Acacia senegal and Acacia seyal. It dissolves readily, adds little viscosity at moderate concentrations, and largely reaches the colon for fermentation. Compared with inulin, it is generally described as fermenting more gradually, which can create a different gastrointestinal tolerance profile.
Fructooligosaccharides, or FOS, are short-chain carbohydrates made mostly of fructose. Human digestive enzymes break them down poorly, so they reach the colon and become substrates for gut microbes. This is why FOS are widely used as prebiotic ingredients. Smaller amounts also occur naturally in chicory, onion, garlic, leek, asparagus, wheat, and selected fruits.
Galactooligosaccharides, or GOS, are short oligosaccharides made mainly from galactose. Most commercial GOS are produced from lactose using beta-galactosidase enzymes that build new galactose-containing linkages. Human enzymes digest these structures poorly, so much of the ingredient reaches the colon, where bifidobacteria and other microbes can use it.
Isomaltulose is made from one glucose and one fructose molecule, just like sucrose, but the two sugars are connected by a different bond. Intestinal sucrase-isomaltase breaks that bond more slowly, so glucose and fructose enter circulation more gradually. Unlike low-calorie rare sugars, however, isomaltulose is absorbed almost completely and ultimately provides about the same energy as ordinary sugar.
D-tagatose is a rare monosaccharide closely related to fructose. It tastes much closer to sucrose than most high-intensity sweeteners, while only part is absorbed and metabolized in the conventional way. FDA recognizes an energy value of 1.5 calories per gram in the United States. Because tagatose also supplies bulk and participates in browning, it can behave more like sugar in food formulation than stevia or sucralose.
Resistant dextrin is a starch-derived glucose polymer in which processing creates bonds that human digestive enzymes cannot easily break. Unlike conventional maltodextrin, a substantial fraction reaches the colon. Because it is soluble, stable, and low-viscosity, manufacturers can add several grams to drinks or foods without creating a thick gel. FDA recognizes the resistant dextrin/resistant maltodextrin category as dietary fiber.
Maltodextrin is a carbohydrate made by partially breaking down starch from corn, potato, rice, wheat, or other sources into shorter glucose chains. It dissolves easily, is only mildly sweet, and works well for adding body, carrying flavors, drying ingredients, and providing rapidly available carbohydrate. Unlike resistant dextrin, ordinary maltodextrin is readily digested and can raise blood glucose quickly.
Polydextrose is a highly branched glucose polymer manufactured so human digestive enzymes cannot easily break most of its bonds. It supplies bulk with little sweetness and relatively little energy, making it useful for adding fiber and replacing part of the sugar or fat in bars, desserts, drinks, and lower-calorie foods. In the colon it is fermented relatively slowly and can influence microbial activity and bowel function.
Soluble corn fiber is a corn-starch-derived ingredient processed to create glucose linkages that human digestive enzymes do not readily break. Although the name may sound similar to corn syrup or ordinary maltodextrin, a substantial fraction resists small-intestinal digestion and reaches the colon. Its neutral taste and low viscosity let manufacturers add several grams of fiber to beverages, bars, and dairy products without making them thick.
Oat beta-glucan is a soluble fiber that forms viscous solutions in the gut. That viscosity helps explain its well-studied relationship with modest reductions in LDL cholesterol. Meta-analyses of randomized trials commonly use at least 3 g/day and find significant decreases in LDL and total cholesterol. The amount of oats needed to provide 3 g varies because beta-glucan concentration differs among products.
“Fibermixxing” is a recent label for looking not only at total fiber grams but also at the types and food sources providing them. The term gained visibility in 2026 as a follow-on to fibermaxxing. The scientifically useful part is that dietary fibers differ in viscosity, fermentability, solubility, and structure, so psyllium, oat beta-glucan, inulin, resistant starch, and bran are not physiologically interchangeable.