hi i have never heard of this but found a good reason to dietPippin said:I haven't heard anything about waist circumference being an issue, but I have never had an immigration medical, so hopefully others with experience will answer this query. There is a correlation between large waist measurements and risk of heart disease (I think it is greater than 40" for men and 36" for women in North America. I do not know whether the same standards apply to all cultures or not.) As far as what is included in the medical, MEZO has a wonderful link. Go down and you will see MEDICAL references. Congrats on getting this far in the process and Good Luck.
http://www.canadavisa.com/canada-immigration-discussion-board/for-your-immigration-journey-important-links-t64774.0.html
rohan