Thorne Research - Vitamin D-1000 - Vitamin D3 Supplement - 1,000 IU - 90 Capsules
- Thorne Research's vitamin D has no hidden ingredients, like lactose, BHT, BHA, sodium benzoate, and sorbic acid that can be detrimental to sensitive individuals
- Supports heart, immune, muscle, and bone health
- Also available in 5,000 IU, 10,000 IU, and 25,000 IU capsules
Frequently Bought Together
Customers Who Bought This Item Also Bought
Since 1984, Thorne Research has set the standard for exceptional formulation and quality manufacturing of premium nutritional supplements. Thorne Research is dedicated to enhancing the health and wellbeing of individuals worldwide by providing innovative, high-quality, research-based nutritional supplements, health diagnostics technology platforms, and the latest in medical education. With more than 350 products, Thorne Research is recognized by health-care practitioners as a global leader in providing nutritional supplements of the highest quality and purity. Thorne Research is the only nutritional supplement manufacturer that has been authorized to include health and lifestyle content on its website that has been authored by the Mayo Clinic.
Thorne Research products do not contain Genetically Modified Organisms (GMOs) nor any binders, coatings, disintegrants, fillers, or lubricants (including magnesium stearate) that could impair absorption. In addition, Thorne Research has received the prestigious NSF International general Good Manufacturing Practices (GMP) and Certified for Sport® certifications. Select products that receive the NSF Certified for Sport® certification enables athletes, coaches, and trainers to make informed decisions when choosing nutritional supplements for sports performance.
ALLERGY WARNING: This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients. This product also does not contain lactose, palmitic acid, or magnesium, calcium, or vegetable stearates. PREGNANCY WARNING: If pregnant, consult your health-care practitioner before using this product. INTERACTIONS /CONTRAINDICATIONS: There are no known adverse interactions or contraindications at publication date.
Take 1 capsule one to three times daily or as recommended by a health-care practitioner.
These statements have not been evaluated by the Food & Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.
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.
Top Customer Reviews
Here is a side-by-side comparison of ten leading Vitamin D3 supplements: Nutrigold Vitamin D3 Gold (5000 I.U.), Doctor's Best Vitamin D3 5000iu (360 Count), Now Foods Vitamin D3, Life Extension Vitamin D3, Nature Made Vitamin D3 5000 I.U., Nature's Bounty Vitamin D3, Thorne Research D-5,000, Schiff Mega D3, Nordic Naturals Vitamin D3, and Nutrigold Vitamin D3 Gold (2000 I.U.).
The major biologic function of vitamin D is to maintain normal blood levels of calcium and phosphorus. Vitamin D aids in the absorption of calcium, helping to form and maintain strong bones. It is used, alone or in combination with calcium, to increase bone mineral density and decrease fractures. Recently, research also suggests that vitamin D may provide protection from osteoporosis, hypertension (high blood pressure), cancer, and several autoimmune diseases.
Sun exposure is an easy, reliable way for most people to get vitamin D. Exposure of the hands, face, arms, and legs to sunlight two to three times a week for about one-fourth of the time it would take to develop a mild sunburn will cause the skin to produce enough vitamin D. The necessary exposure time varies with age, skin type, season, time of day, etc.
People who don't get enough sun, especially people living in Canada and the northern half of the US, are especially at risk. Vitamin D deficiency also occurs even in sunny climates, possibly because people are staying indoors more, covering up when outside, or using sunscreens consistently these days to reduce skin cancer risk.
Older people are also at risk for vitamin D deficiency.Read more ›
It's white powder, dry form in in very petite capsules, much smaller than other over-the-counter supplement capsules. An example os size using common television advertisements, is to see the common capsule size for Prilosec and Nexium. If those capsules were to be called 'horse pills,' then these D3 capsules are midget Shetland ponies. Very easy to swallow. Being in dry form, not oil form, I have no stomach upset. If you have problems with your body absorbing nutrients from oils, whether from food or vitamin supplements, then this product is really worth your trying.
My doctor and several drs in his very large medical organization researched together to find the best producer to recommend to their Fibromyalgia patiends. I was told they almost unanimousely agreed on the Thorne brand because it is the "purest" Vitamin D3 they found. If you notice, you can buy them here with No Preservatives.
An unexpected benefit: My bone density 3 yrs ago was borderline osteoporosis, despite my young age. I get little good exercise due ot disability. However, my last bone density test actually showed my bones a very little thicker, and higher than the borderline. I was later told that Vitamin D3 particularly is very important to actually GROWING bones, whereas medicines and other supplements focus on preventing further deterioration. If that is true, it worked for me. However, I was cautioned that D3 alone does not "do the trick." You must also have calcium and magnesium closer to a 1:1 ratio instead of the traditional 2:1 ratio.Read more ›
Most Recent Customer Reviews
These were originally prescribed to me by my naturopath. Anything she carries, is of the highest quality. These are small capsules that are easy to swallow.Published 7 days ago by briyana l becker
In February 2016, bloodwork showed that my Vitamin D levels were extremely low at a 9. (Ah, so that's why I was so exhausted and mentally foggy! Read morePublished 12 days ago by Laura Droege
I have borderline low vitamin D. I noticed a difference after taking it for a week. I had more energy.Published 20 days ago by TMR