Start by reading the book, Vitamin K2 and the Calcium Paradox. We need to take K2, and the same amount of Vitamins A and D3 on a daily basis. Most of the Vitamin A pills are 10,000 IU's and I am delighted to be taking D3 the same dosage. Most books do not mention the importance of Vitamin A and I don't think many doctors in the US know that if you take the same amount of A and D3 you do not have to worry about taking too much Vitamin A. Doctors study only one semester in their entire schooling--and it is unfortunate that their teachers don't know much either. Now that I am taking this size pill I can relax knowing that I won't get the number of pills I need to take confused. The health benefits of taking these three vitamins are incredible. I have no sign of the 2 blood clots I had in 2014. One word of caution--you can't take both blood thinners and Vitamin K at the same time. Also--it is better to reverse the problem than to experience blood clots. These vitamins also reverse type 2 diabetes and prevent Alzheimer's as well as help many other conditions. Well worth the money. I almost forgot, if you only take one of the three vitamins you are automatically short in the other 2 vitamins. Most books (and doctors) do not realize the importance of Vitamin A (which releases the old Calcium by directing it to leave the body through our urine.)

Wish I would have read the ingredients...corn syrup? corn maltodextrin? Very disappointing.

Very disappointed in this product and will be returning it. It is entirely unnecessary for a tablet to contain corn syrup solids, rice extract, potato starch and other fillers. Organic or otherwise, health conscious individuals usually don't consume corn syrup or things like potato starch so why Bronson chose to include these ingredients is baffling. There are other brands of Vitamin D supplements that do not contain these fillers... choose those.

When I found out that my Vitamin D levels were low, my primary care practitioner encouraged me to supplement. When I told her I'd found a 10,000 IU supplement, she thought I was mistaken. After supplementing with 3 months, I went from chronically low (14) to the upper end of the desired range (80) This is potent stuff, so I'd get lab tests and work with a medical professional first. They have me take a pill in the morning and one in the evening during the colder months when I'm not outside much, and just one a day in spring and summer.<br /><br />It's hard to find this dosage in stores. My only complaint is that the pills sometimes feel a little powdery when swallowing, but other than that, no complaints.<br /><br />Update: The regimen of taking this twice daily during winter months and cutting back to alternating days of one tablet one day with two the next has kept me at solid levels of Vitamin D.

I TAKE IT AND IT SEEMS TO WORK, I HAVE NO ISSUES WITH THIS PRODUCT AND BELIEVE VITAMIN D IS VERY IMPORTANT FOR GOOD HEALTH I TAKE 10000 A DAY AND I HAVE NOT BEEN SICK FOR 2 YEARS, NO COLDS NO NOTHING. NOT BAD FOR 62.

I was diagnosed with Osteopenia and was instructed to begin taking a vitamin D supplement. I saw this on Amazon and decided to order it. My doctor is impressed with my Vit. D level and I am very happy with the product!