E963 – Tagatose
SweetenerDescription
D-Tagatose is a naturally occurring ketohexose monosaccharide, an isomer of fructose, typically produced industrially via enzymatic isomerization of D-galactose. It functions as a low-calorie bulk sweetener (92% the sweetness of sucrose), texturizer, and humectant. It has a low glycemic index (~3) and exhibits prebiotic properties.
Risks
Gastrointestinal distress (diarrhea, flatulence) at high consumption levels
Notes
D-Tagatose is a naturally occurring sugar that can be found in small amounts in dairy products, certain fruits, and even tree sap. To make it commercially, manufacturers typically start with lactose (milk sugar) and use special enzymes to convert it into tagatose. This process transforms the milk sugar into a different type of sugar molecule called a ketohexose, which has a unique structure that our bodies process differently than regular sugar. As a sweetener, tagatose provides about 90% of the sweetness of regular table sugar but with only about one-third of the calories. You'll find it in sugar-free candies, baked goods, cereals, and diet soft drinks where it works as a bulk sweetener, meaning it provides both sweetness and volume to replace sugar. What makes tagatose special is that it also acts as a prebiotic, feeding the beneficial bacteria in your gut and potentially supporting digestive health. While tagatose occurs naturally, the commercial version is produced through processing, making it technically a processed natural ingredient. It's suitable for vegetarians and vegans, and since it's typically derived from milk sugar, people with severe lactose intolerance should check with manufacturers about potential traces. The ingredient is generally recognized as safe, though like other sugar alcohols, consuming large amounts may cause digestive discomfort in some people.