If there's only one supplement you're taking for your health and your diet is decent, it should probably be Vitamin D. I highly recommend taking Vitamin D instead of a multivitamin most of the time. The standard supplement is Vitamin D3, otherwise known as cholecalciferol. Vitamin D3 tends to be better absorbed than other forms of Vitamin D. Vitamin D is an essential vitamin known as the sunlight vitamin, due to synthesis occurring in the skin from the sun's radiation. It has a multitude of benefits to the body including supporting bone structure, mood state, and is generally seen as healthy and anticancer. The RDA for vitamin D is currently set at 400-800IU/day, but this is likely too low for adults. The safe upper limit in the United States is currently defined as 2,000IU/day, and in Canada it's 4,000IU/day. However, research suggests that the true safe upper limit is 10,000IU/day. Supplemental vitamin D is implicated in wide-ranging benefits, such as increasing cognition, immune health, bone health, and well-being; reducing the risks of cancer, heart disease, diabetes, and multiple sclerosis; and increasing testosterone levels in deficient populations. This product by 21st Century Health Care offers a cost-effective supplement for the benefits mentioned above. Taking everything into account, I highly recommend this high quality product. I hope you'll find my review helpful to you. I am a strong advocate on scientific medical research and evidence-based information, and constantly want to differentiate between marketing hyperbole and real world effects. If you like my review, please kindly click ‘Yes’. And also, please feel free to check out my page for more reviews by clicking my name 3827GreenWood at the top of this review. Best wishes and good health to everyone!
Posted by eathealthy on Dec 28, 2013 | Verified Purchase
These tablets are easy to take, just one a day to enhance immunity and prevent cancer. I do prefer to take a liquid vitamin D supplement such as D drops. Plus the drops taste better. This bottle was a freebie but wonèt purchase again. If you like my review check out my page by clicking eathealthy in blue above to see reviews of all the products I have purchased from iHerb!
Posted by briksons on Jan 27, 2018 | Verified Purchase
In our country we don`t have many sunny days. So we need this D vitamin very much!
Posted by iHerb Customer on Oct 23, 2017 | Verified Purchase
Great product, recomended
Posted by iHerb Customer on Dec 01, 2016 | Verified Purchase
you can never get too much vitamin D, so 2 of these a day will do good.
Posted by iHerb Customer on Jul 07, 2015 | Verified Purchase
Posted by iHerb Customer on Jun 13, 2015 | Verified Purchase
This pill is very small and easy to swallow.
Posted by iHerb Customer on Apr 12, 2015 | Verified Purchase
its a good price
Posted by iHerb Customer on Mar 16, 2014 | Verified Purchase
Softgel capsules are better than these, but the price is good.
Posted by iHerb Customer on Feb 06, 2014 | Verified Purchase
One study that many people have used as evidence against magnesium stearate is a 1990 experiment entitled “Molecular basis for the immunosuppressive action of stearic acid on T cells.” This baffles me, and I suspect that anyone using this study to indict magnesium stearate hasn’t actually read it. In the experiment, scientists isolated T-cells and B-cells from mice, put them in a Petri dish, and bathed them in a solution containing stearic acid (along with some other components). They observed that the T-cells incorporated the stearic acid into their cell membrane, eventually de-stabilizing the membrane enough that the cell died. First of all, this study has nothing to do with magnesium stearate. They just used the plain old stearic acid that you’d find in your beef, chocolate, or coconut oil, so this study could just as easily be used against those foods. If you’re going to be concerned about this study (which you shouldn’t be), you’d have much bigger sources of stearic acid to worry about than the magnesium stearate in your supplements. Second, the study has nothing to do with stearic acid consumed in the diet. Under normal conditions, your T-cells are not bathed in stearic acid, even if you consume superhuman amounts of coconut oil, tallow, and cocoa butter. Finally, the researchers used T-cells from mice, and in this case, the results cannot be applied to humans. The mouse cells incorporated stearic acid into their membranes because they lacked the ability to de-saturate fatty acids. However, human T-cells do have the ability to de-saturate fatty acids, so even if you did bathe your T-cells in stearic acid, they would be able to maintain their membrane function. (1) In case you got lost, here’s a summary: this study has no relevance whatsoever to human consumption of magnesium stearate, I have no idea why the study is being referenced in this manner, and you shouldn’t be concerned about it.
Posted by iHerb Customer on Jan 14, 2014 | Verified Purchase
Perfect for teeth, nails and even hair.