.Depending on their energy contribution they are classified as ‘‘caloric’’or ‘‘low calorie/non caloric’’ (Table 1) or as ‘‘nutritive’’ or ‘‘non-nutritive’’, as established by the US Food and DrugAdministration (FDA) (Table 2).35In some cases the term‘‘natural origin’’ is used in the consumer information, as with steviol glycoside, or ‘‘artificial’’ origin when they are synthetic (Table 1).