 This aim of this study is to investigate the prebiotic potential of date fruits in healthy human volunteers compared to a control diet. Each arm was 21 days in duration, separated by a 14 days washout period. Faecal samples, and blood samples will be collected from each volunteer and high resolution analytical techniques HPLC, LC-MS and NMR will be employed to characterise the whole system metabolic response to ingestion of date fruits compared to the control. Changes in microbial parameters and metabolite profiles will be correlated with changes in biomarkers of chronic disease, including faecal water genotoxicity, cellular reactions, blood lipids and bowel movements. 