"I have ordered these for myself and my daughter for about two years, as we were both diagnosed with a D3 deficiency. They are economically priced, yet are of very high quality. This is the best brand I have been able to find. We take two a day and they do a great job for us. I like the large bottle, as I don't need to order them nearly as often as other brands."
Remember: Kirkland is the REASON you joined Costco
Pros: quantity quality price with shipping included.
Cons: we have no costco nearby but we have ups
"Living up ere north of Mason-Dixon, around the Great Lakes, when 62% of days are overcast, we don't get much opportunity for vitamin D from the sun,
Enter Kirkland's Vitamin D supplement.
One of these a day, and we've met the daily need for this vital prohormone, which medical science is indicating that Vitamin D is more important than ever. And you will never be able to beat the Kirkland deal for value."