13 of 13 people found the following review helpful
Costco's Kirkland Brand Vitamin D3,
Verified Purchase(What is this?)
This review is from: Costco 2000 IU Kirkland Signature Vitamin D3 Capsules (Personal Care)
For some reason not in my local UK costco. So I ordered it here. In Costco you can buy everything from Kirkland Brand Almonds to Dog food so this is basically Costco's own brand in case people were unaware.
Pretty good value, because you get nearly 2 years worth - 600 tablets for £12 and a trusted Brand, so this is the one of the numberoius out there to get.
The minimum Adult Recommended Daily Amount for vitamin D3 is 200UI. 4000 IU is the EU Upper level (Maximum) which they say is unlikely to cause any health problems.
And that means 2000IU should be a decent amount to take daily.
You should note that 10,000 to 20,000 IU of vitamin D can be produced in 30 minutes of whole-body sunlight exposure according to the Wikipedia on Vitamin D.
Given the Brand and amount this is a great deal.