[devaboone]

There is a big difference between Canada and the US in how Vitamin D is treated.

In the US, you can go into any major pharmacy chain like CVS or Walgreens and purchase Vitamin D over the counter in 5,000 unit pills, with the bottle instructions saying to take once daily. I periodically check the Vitamin D supplements available and will find them with 10,000 units per pill, again with instructions to take once daily.

Many of the patients from the US who come to me are taking Vitamin D - and 5,000 units a day is a common dose. Most of them are told to take this by their physician, and others are on the dose because they just went to the pharmacy and picked up a bottle, which happened to contain 5,000 units.

Just a quick google search produced these 10,000 unit pills available at Walgreens, made by a common vitamin company. Note that the instructions are to take once daily, and there is no mention of watching calcium levels: https://www.walgreens.com/store/c/nature's-bounty-d3-10,000-...