A  safety evaluation of the potential use of fructooligosaccharides (FOSs) as flavor enhancers/sweetners in plain, unsweetened yogurt was conducted. FOSs are naturally occurring sugars that consist of sucrose molecules to which 1, 2, or 3 additional fructose units have been added by a b-(2-1)-glycosidic linkage to the fructose unit of sucrose. The acceptable daily intake–the maximum amount of the additive that can be safely consumed on a daily basis for a lifetime–was investigated. It was concluded that FOSs have an established, acceptable background in food and that they do not represent a health hazard. The writers contend that preparation of FOSs and their use as flavor enhancers/sweeteners in plain, unsweetened yogurt at a concentration of 0.5 percent can be considered safe.