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 Read-Me-Now-Be-Happy on May 29, 2013 | Verified Purchase
What a good price for a high dosage. 110 tablets in a bottle.
Posted by iHerb Customer on Nov 18, 2017 | Verified Purchase
I can't believe iHerb has sent me a product that is almost expired! I ordered 3 bottles and received the product Oct 2017, then the expiration on the bottle is Nov 2017. How are you supposed to consume 330 tablets within 1 month?
Posted by LillaMi on May 29, 2013 | Verified Purchase
Perfect for my Swedish wather and luck of sun and warmth. I am more prone to depression and mood swings since I moved to SE. Wit. D3 helps me a lot. 1000-2000 is a minimum.
Posted by jeffchiu on Nov 25, 2013 | Verified Purchase
This product can be better if they use vegetable cellulose or vegetable lubricant instead of stereate in the other ingredients. I also noticed calcium carbonate as one of the ingredients aside from Vitamin D3 from cholecalciferol. Calcium carbonate came from limestones. I prefer organic, natural, Non GMO and vegan products.
Posted by healthydoesit on May 19, 2013 | Verified Purchase
Thank you Iherb for offering this as a free trial offer! It's a great alternative to the normal D3 I take. Especially great for those who don't get much sunshine.
Posted by TrueShoppingAdvice on Dec 07, 2015 | Verified Purchase
I give the product only two stars because I think that there are many other better vitamin D products available at iHerb. Usually vitamin D products do not need any magnesiumsterate and they are in oil capsules for better absorption. 1,000 IU = 25 µg vitamin D3, the best form of vitamin D. You should meaure your vitamin D level sometimes to see that you are getting enough this very important sun vitamin. I have measured my blood serum 25-Hydroxyvitamin D, 25(OH)D three times and last time my test result was 141 nmol/L = 56.4 ng/ml. My test result was now at optimum level which is 125 - 150 nmol/L = 50 - 60 ng/ml when you are taking enough Vitamin D. I will continue with the same dosage that is 2,000- 5,000 IU daily to keep my vitamin D level right. There is no need to worry about overdosing because the tendency for serum 25(OH)D to rise when the starting level already is higher is very gradual. I hope you find this review helpful. Please, also visit my page for more reviews, especially for new customers to iHerb. Enjoy your iHerb journey!
Posted by PurplePegasus on Feb 16, 2014 | Verified Purchase
sent it to a friend
Posted by iHerb Customer on Sep 12, 2013 | Verified Purchase
I have Crohn's disease in my large intestine. I have found it difficult to tolerate many other vitamin D liquid supplements. These were on sale for $1.95 so I figured, why not at least try. I haven't reacted at all and have been very pleased with them. Sometimes fancy and more expensive gel caps just aren't needed (I guess). Now, I am back to buy my second bottle, and even if the price goes up, I will probably still buy more!
Posted by ROSSITA on Sep 09, 2013 | Verified Purchase
Genial porque fue regalo, y siempre tomo Vit D 3, ya que es necesaria para tus huesos y tu forma física. Recomiendo se tome esta u otra parecida. Más revisiones de productos en mi cuenta.
Posted by JuliaP on Jul 04, 2013 | Verified Purchase
Just ok. Ordinarry supliment. Would prefer complex.