Footnote 1:  Tagatose has a low glycemic index of 3 and has prebiotic effects

Skytte (2006), Sweeteners and Sugar Alternatives in Food Technology

Footnote 2:  Tagatose does not promote tooth decay

21 CFR 101.80, Section 2

Footnote 3:  Tagatose does not raise blood glucose levels when consumed on its own

Donner TW, Wilber JF, Ostrowski D. D-tagatose, a novel hexose: acute effects on carbohydrate tolerance in subjects with and without type 2 diabetes. Diabetes Obes Metab. 1999 Sep;1(5):285-91