With respect to Health Canada’s vitamin D recommendations: (a) does the government plan to update them and, if so, (i) how, (ii) what is the timeline for the update, (iii) what research is Health Canada using in conducting the update; (b) what are the qualifications of the experts who will evaluate and select the research used to support any decision about the adequacy of Health Canada's current vitamin D recommended daily allowances; (c) is there current, accepted evidence to suggest that taking vitamin D in amounts higher than the recommended daily allowance is harmful; (d) what amount of vitamin D, if any, would be harmful to Canadians' health; (e) if there is an amount found to be harmful, what “harm” did the said amount cause; and (f) which studies were used to draw any conclusions found in (e)?
In the House of Commons on June 17th, 2010. See this statement in context.