(43)There have been recent developments in the expression of the nutrition declaration, other than per 100 g, per 100 ml or per portion, or in its presentation, through the use of graphical forms or symbols, by some Member States and organisations in the food sector. Such additional forms of expression and presentation may help consumers to better understand the nutrition declaration. However, there is insufficient evidence across all the Union on how the average consumer understands and uses the alternative forms of expression or presentation of the information. Therefore, it is appropriate to allow for different forms of expression and presentation to be developed on the basis of criteria established in this Regulation and to invite the Commission to prepare a report regarding the use of those forms of expression and presentation, their effect on the internal market and the advisability of further harmonisation.