My daughter has had a vitamin D deficiency for many years as well as osteoporosis. Her doctors have tried prescription dosages, as well as daily supplemental D — nothing made much of a difference except moving her level maybe 5-10 points over a year. Then I came across the Bluebonnet Brand sold at Whole Foods (I also have ordered from Amazon) . This has made a huge difference — her levels have gone from 26 to 59 since we started using this product. It contains fish oil unlike most of the other products she has tried. Her neurologist and bone doctor were amazed at her levels and asked me what I was giving her!

I have been using this product for many years...I like that it doesn't contain lanolin derivatives which is what most D3 is made from. Lanolin D3 makes<br />me itch. This product doesn't..And by taking 3000-4,000 iu per day, my blood test shows me to have normal D3 readings.

These were the only vitamin D3 I have found that are totally derived from actual cod liver oil, and not from lanolin scraped off of sheep skin. Ugh!

small, easy to swallow.

Too expensive

Have tried lots of different brands in the last few years, but keep coming back to these.<br />Ymmv.