On-line Vitamins Much Cheaper for Canadians

Since I plan on living a long time (and keeping my bones strong throughout my life) I am very interested in the cost of my osteoporosis vitamins. Supplements in Canadian stores are a LOT more expensive than those found on-line. Vitamin D is restricted to 1000 IU a tablet which is silly in a Canadian winter. Vitamin K2 is hard to find and usually overpriced. And the Canadian brand of strontium is about 30% more expensive than the Doctor's Best brand. Canadians are much better off buying on-line.