Sweeteners

Definition: Substitutes for sugar, which have the same sweetening power with a lower dosage. The high intensity communicates at low levels a long lasting sweet taste and some remove bitter/metallic after tastes (e.g. NHDC)

Sweet effects just on taste perception

Palatability agents, which intensify at low levels the gustatory and olfactory sensations

Without or less caloric energy compared to sugar, explanation: most of the sweeteners can not be split with the help of body own enzymes