Publications on portion information 02 November 2011 EUFIC is involved in research on the effects of portion information on consumer behaviour. Below you see a list of all scientific, peer reviewed publications where EUFIC is an author. Hieke S, Palascha A, Jola C, Wills JM, Raats M. The pack size effect: influence on consumer perceptions of portion sizes. Appetite 2016;96:225-238. Raats M, Hieke S, Jola C, Hodgkins C, Kennedy J & Wills J. Reference amounts utilised in front of package nutrition labelling; impact on product healthfulness evaluations. European Journal of Clinical Nutrition 2015;69:619-625.