Provided is a flavor modifying composition including a blend of a water soluble filler including plant fibers; and at least one sucrose substitute of natural source, wherein said flavor modifying composition includes at least 90% w/w of the filler, the amount being determined when said composition is in dry form; and said flavor modifying composition is water soluble. The flavor modifying composition is particularly effective in enhancing sweet taste and/or aroma of a product. Further provided are products including the flavor modifying composition.