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Kirkland Signature Extra Strength Vitamin D3 2000 I.U. 600 Softgels, Bottle

4.6 out of 5 stars 812 customer reviews
| 22 answered questions
About the Product
  • Supports bone, colon, muscle, immune and breast health
  • D3 can do amazing things for you and your body to keep running in great health
  • Dietary supplement

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Product Description

Size:1 Count

Vitamin d3, also known as the sunshine vitamin, is important for strong bones and teeth.† vitamin d3 also plays a major role in healthy cell development and helps keep the immune system strong.† d3 has been shown to promote muscle health, breast health and colon health. Ingredients Soybean Oil, Gelatin, Glycerin, Water, Corn Oil, Caramel (Artificial Color), Cod Liver Oil, Vitamin D3 (Cholecalciferol).

Product Details

Size: 1 Count
  • Product Dimensions: 6 x 5 x 4 inches ; 2.7 ounces
  • Shipping Weight: 6.4 ounces
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B002RL8FE8
  • UPC: 811845602539 890697433942 096619393916
  • Item model number: 393914
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (812 customer reviews)
  • Amazon Best Sellers Rank: #2,408 in Health & Personal Care (See Top 100 in Health & Personal Care)

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Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. Please see our full disclaimer below.

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Customer Questions & Answers
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Customer Reviews

Top Customer Reviews

5.0 out of 5 starsVitamin D3
By L. Vickers on January 25, 2012
Size: 1 Count Verified Purchase
I was feeling tired and just run-down. Went to the doctor and had blood work, to find out that I was low to deficient in Vit D. After some research on vitamins, Kirkland brand comes out on top for quality. I don't live any where near a Cosco- so purchased here because price was good. Even being low in Vit. D, I take only one pill (2000I.U.) a day. More than 6000 I.U. is actually harmful, I guess. All in all, I would say that the pills are actually working - I have regained my zip, which makes me think that I could honestly recommend these vitamins.
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1.0 out of 5 starsShould not ship in this hot weather. All the ...
By Ken B. on June 25, 2015
Size: 1 Count Verified Purchase
Should not ship in this hot weather. All the softjels were stuck together and had to cut bottom of container to get them out. I threw them away.
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5.0 out of 5 starsSunshine in a bottle
By C. Ritchotte on September 17, 2011
Size: 1 Count Verified Purchase
I started taking D3 after reading recent studies that found modern people were overall pretty deficient in it. Nearly all the symptoms of deficiency applied to me. I live in a state where it's cold outside for at least six months of the year, and I do a lot of desk work and don't get outside as often as I'd like.

For years I was constantly ill, so much so that it became a running joke. Whenever someone in my son's elementary class got sick, it seemed like he'd catch it and bring it on home to me. I can pinpoint the time when the constant colds stopped happening to the time we both started taking D3 supplements (though children under 12 or 13 need far less than adults, they still need more than the 200 I.U. the FDA used to recommend). In the past ten months, we've only been ill once, which is a record around here.

It does take a little time to build yourself back up to ideal levels if you're really deficient--seems to have worked out well when I took two for the first month or so and then dropped down to to one a day thereafter. I should mention that I've also begun taking a lot of other supplements like fish oil and probiotics, but this one and perhaps the daily probiotics seems to have been the key.

D3 is important for the absorption of calcium, helps depression, high blood pressure, some cardiovascular disease, prevents rickets in children, and a lot more. So far, the Kirkland D3 is the best deal I've found on the web that is of a decent quality (you don't want this in a pressed pill, as it needs oil to absorb best). I'm not sure how the Amazon price compares to the price at Costco, but if memory serves this is pretty close.
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5.0 out of 5 starsDoctor recommended this for low Vitamin D
By R. Aleman on August 26, 2013
Size: 1 Count Verified Purchase
I recently had an annual checkup with my doctor where she had me get a vitamin panel done. Apparently, I was nearly deficient in Vitamin D. She said it could have been for many reasons: I have a caramel complexion, I was staying up North for the summer as opposed to Florida, and I was not spending as much time outside because of work. She recommended I specifically take 2000 IUs of Vitamin D3, so I ordered this one since it's had some of the best reviews.

It's been three weeks, and I do feel better. Interestingly enough, I'm a lot less anxious and nervous when reacting to everyday things. It's like how you feel calmer after sunbathing for a while. Food for thought.

Take this bottle if your doctor told you you're low on Vitamin D. I would consult with them in any case.
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5.0 out of 5 starsMy Vitamin D Levels are Normal Now!!!!
By phillygrl on May 1, 2016
Size: 1 Count Verified Purchase
I take this supplement everyday to keep my Vitamin D levels up. I live in Pennsylvania and we don't get strong enough sun rays at least 8 months out of the year. My D levels were a little low and I was told by my doctor that I should supplement with D3. I started taking Kirkland Signature 2000 IU and had an appointment 6 months later to check on my levels and I was considered as having perfect levels. I continue to take this once a day along with my husband. Neither of us have any negative side effects from taking this supplement. The pills are really small and easy to swallow. I'm glad that I chose this brand because it works. If this review was helpful to you in any way, please let me know by clicking on helpful. Thanks!!!
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5.0 out of 5 starsKirkland. The best Vitamin D3 for your way of life!!!
By maxx001 on November 20, 2013
Size: 1 Count Verified Purchase
Frequent exposure of the skin to sunlight promotes sufficient vitamin D synthesis without the need for supplements, however, adults who have darker skin pigmentation or frequently wear sun protection during outdoor activities are often vitamin D deficient.
Vitamin D for humans is obtained from sun exposure, food and supplements. It is biologically inert and has to undergo two hydroxylation reactions to become active in the body. The active form of vitamin D in the body is called Calcitriol (1,25-Dihydroxycholecalciferol).

Calcitriol promotes the absorption of calcium and phosphorus from food in the gut and reabsorption of calcium in the kidneys - this increases the flow of calcium in the bloodstream. This is essential for the normal mineralization of bone and preventing hypocalcemic tetany.

Hypocalcemic tetany is a low calcium condition in which the patient has overactive neurological reflexes, spasms of the hands and feet, cramps and spasms of the voice box (larynx). Calcitriol also plays a key role in the maintenance of many organ systems

D3 is more effective in the bloodstream vitamin D is essential for the "formation, growth, and repair of bones and for normal calcium absorption and immune function" and there are studies to suggest that "higher levels of vitamin D in the blood are associated with reduced risks of colorectal cancer.
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