THORNE

THORNE - Vitamin D3 Supplement - Supports Healthy Bones Teeth Muscles Cardiovascular Immune Function - Gluten Dairy Soy-Free

4.8(3,459)

50+ bought in the past month

$14.00

About this item

  • Vitamin D3 Benefits: Supports healthy teeth and bones by enhancing the absorption of calcium; supports immune function and cardiovascular health*
  • Optimal Absorption: Vitamin D3 (as cholecalciferol) is more potent and better absorbed than vitamin D2 (or ergocalciferol); research shows vitamin D3 is more effective at raising overall vitamin D levels*
  • Essential Vitamin D: Optimizes performance, muscle strength and mass, and cellular repair, especially for those who work indoors or lack adequate sun exposure to support the body's natural vitamin D production*
  • Third-Party Certified: This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants
  • Trusted: Thorne is chosen by champions and trusted by 100+ professional sports teams, a proud partner of U.S. National Teams, and the #1 recommended clinical brand by health-care practitioners (2023 Health-Care Practitioner Seller Survey)
$14.00

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Product details

BrandTHORNE
Item FormCapsule
Primary Supplement TypeVitamin D3
Diet TypeGluten Free
FlavorUnflavored

Technical specifications

is_discontinued_by_manufacturerNo
item_model_numberD128
date_first_availableOctober 2, 2001
manufacturerThorne Research
best_sellers_rank#2,559 in Health & Household ( See Top 100 in Health & Household ) #32 in Vitamin D Supplements

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Customer reviews

4.83,459 ratings

Customers say

Customers find this vitamin D supplement to be a reliable brand with good quality ingredients and easy-to-swallow tiny capsules.

★★★★★

Excellent Vitamins D

Starr—July 27, 2025

I’ve been using Thorne Vitamin D for a few months now, and I can truly feel the difference in my energy, mood, and overall health. The quality is top-notch, and I trust Thorne for their clean, science-backed ingredients. It’s easy to take, gentle on the stomach, and I love that it’s tested for purity. Highly recommend this to anyone looking to support their immune system and maintain healthy vitamin D levels—especially if you don’t get much sun! Read more

★★★★★

Never want to be without this

nancy clayton hoover—December 18, 2025

I am convinced this is a great product. I think Thorne is a great company and the vitamin D3 supplement has definitely strengthened my bones. I am 84 years old and I tripped over my husband's wheelchair and landed on my wrist. I am convinced that had I not been taking this high quality supplement I probably would have broken my wrist. I am so grateful that didn't happen. Read more

★★★★★

Vitamina D

Yana—December 20, 2025

Love this brand and the vitamins are great on my third order pretty soon! Read more

★★★★★

Easy pull to swallow

Mai Gutierrez—September 20, 2025

Highly recommend for anyone looking for a simple, effective daily vitamin! Energy: Provides a noticeable boost—feel more energized throughout the day. Gentle on the stomach: No upset stomach or digestive issues. Easy to take: Small, easy-to-swallow capsules with virtually no taste. Effective dosage: 1000 IU, exactly what my doctor recommended for daily use. Absorption: Seems well absorbed, I feel the benefits consistently. Read more

★★★★★

Standerd of Excellence

Linda A—October 6, 2025

I use a lot of Thorne products. I am very happy with the brand and they are very good at maintaining the quality of their supplements. Read more

★★★★☆

Good brand

DontBeCheeky—January 21, 2025

For the most part we don't have issues. Sometimes there is nothing in the capsule which is super annoying. Most of our supplements are Thorne. Read more

★★★★★

Great!

Deborah Marszalik—August 2, 2025

I like these capsules because they are small and easy to swallow! Read more

★★★★★

The most reliable vitamin brand we use as a family!

Mom of Kids—January 26, 2025

We've tried so many brands, honestly, for different supplements. I've found that simply going to the grocery store and grabbing the first one you see is not the answer. Absorbancy is so key! We now use Thorne supplements for four different vitamins, and are very pleased with the effectiveness, and the consistency in packaging and capsule quality. You get what you pay for when it comes to supplements, and these are such a great value. Read more

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