The invention relates to a particulate creamer or whitener composition, wherein the particles comprise fat, carbohydrate, whey protein and an acidulant, and wherein, if reconstituted in demineralized water, a 10 % (w/w) dispersion or solution of said composition in demineralized water has a pH between 3.5 and 6. The invention furthermore relates to a process for preparing such a composition, and to the use of the particulate composition in food products, in particular in food products having an acidic pH, i.e. below 7, preferably below pH 6.5, more preferably below pH 6.0.