Sweet items taste less sweet in Canada than they do in the United States. I know this to be true, but I like expanding my knowledge on this theory.
I made a recent trip to Windsor, Canada, located in the province of Ontario right across the Detroit River from Detroit, MI. I found this bargain rate grocery store along the lines of an Aldi but with better selection.
I like Heinz ketchup from Canada. Tastes much less sweet and much better than the version in the States. Try explaining to Customs that you are trying to bring ketchup across a border. I had to do that once; I don't think she cared since ketchup isn't a border issue.
I was also on the prowl for Hostess products from Canada. I have had Twinkies in Canada, but wanted to expand my Hostess experience. I found the Cup Cakes on this trip. With the Twinkies and Cup Cakes, I still get the sweet taste, but it feels more sincere, dare I say, more homemade than the industrialized versions here in the States.
Most people would likely find the Canadian versions to be underwhelming. I liked them a lot.
I don't have much experience with British products, but I figure no one does over-the-top sweetness like the United States. If I lived in Canada, I would buy more sweet products.