(1)Whether, since the implementation of the Health Promotion Levy, his department conducted any research into its effect on levels of obesity in the Republic; if not, why not; if so, (a) who conducted the research, (b) on what date was the research conducted, (c) what did the research reveal about the effectiveness of the levy, (d) what is the reason that the research has not been made public and (e) on what date will the research be made public;
(2) whether the research has been shared with the National Treasury; if not, why not; if so,
(3) whether there has been any discussion of the research between his department and the National Treasury; if not, why not; if so, what are the relevant details of the discussions;
(4) whether there are any plans to conduct such research now or in the future; if not, why not; if so, what are the relevant details?