The invention pertains to a liquid composition for preventing and/or treating memory decline and/or cognitive dysfunction, Alzheimer's, Parkinson's and/or dementia, said composition comprising: (i) at least 50 mg nucleoside and/or nucleotide per 100 ml; (ii) between 0.2 and 10 grams protein per 100 ml; (iii) between 0.05 and 3 wt. % of 5 thickener, based on total weight of the composition. The thickener is preferably selected from the group consisting of cellulose, xanthan gum, gellan gum, alginate, guar gum, locust bean gum, gum karaya, gum tragacanth, carrageenan, and mixtures thereof. The composition preferably has a loss factor tan δ between 0.1 and 100, as measured at any strain in the range of 1 100% at 0.1 Hz and 20° C. It is particularly found that a thickener selected from the group consisting of gellan gum, xanthan gum and cellulose greatly reduces sedimentation.