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Best vitamin ds - October 2025

Last Updated - October 21, 2025

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

THORNE

THORNE - Vitamin D-5000 - Vitamin D3 Supplement - Support Healthy Bones, Teeth, Muscles, Cardiovascular, and Immune Function* - NSF Certified for Sport - Dairy-Free, Soy-Free - 60 Capsules

THORNE

$19.00

More Details
Main highlights
- Vitamin D3 Benefits: Supports healthy teeth and bones by enhancing the absorption of calcium; supports immune function and cardiovascular health*
- Vitamin D for Performance: Optimizes muscle strength and cellular repair, especially in athletes who train indoors or lack adequate sun exposure to support the body's natural vitamin D production*
- 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
- 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*
- NSF Certified for Sport: Tested for compliance with label claims and to ensure the absence of nearly 300 substances banned by many major athletic organizations
$19.00
2
29% Off

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Sports Research
29% Off

Sports Research® Vitamin D3 + K2 w/ Coconut Oil - Vegan Vitamin D 5000iu & Mk7 Vitamin K 100mcg for Bone & Immune Support - Vegan Certified · Non-GMO · Soy Free - 60 Softgels

Sports Research

$16.77

$23.95
(29% Off)

More Details
Main highlights
- PLANT-BASED, VEGAN-FRIENDLY FORMULA: Our D3 + K2 supplement uses vegan D3 (cholecalciferol) sourced from lichen and K2 (MK-7) derived from fermented chickpeas, with coconut MCT oil added to support optimal nutrient absorption.* No animal ingredients, ever—just effective science-backed support.*
- ONCE-A-DAY IMMUNE & BONE SUPPORT: Each easy-to-swallow softgel delivers 125 mcg (5000 IU) of vegan D3 and 100 mcg of K2 (MK-7)—the most bioavailable form of K2. Just one softgel per day helps promote bone health, immune support, and cardiovascular health in both women and men.*
- NUTRITION YOU CAN TRUST: At Sports Research, we craft supplements with ingredients you recognize and results you can feel. Our D3 + K2 softgels deliver plant-based purity, clinical strength, and real transparency, helping you live brighter every day—naturally.*
- D3 + K2 – TEAMWORK THAT MATTERS: Vitamins D3 and K2 work synergistically to support strong bones, immune health, and proper calcium metabolism.* D3 helps your body absorb calcium, while K2 (as MK-7) guides it to the bones where it belongs.* Together, they form a powerful combo for total-body wellness.*
- CERTIFIED CLEAN & QUALITY TESTED: Our vitamin D3 and K2 formula is Vegan Certified, Non-GMO Project Verified, and free of carrageenan, gluten, soy, and artificial fillers. Each batch is 3rd-party tested and manufactured in the USA in a cGMP-compliant facility—because your health deserves the highest standard.
$16.77
$23.95 (29% Off)
3

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

NatureWise

NatureWise Vitamin D3 5000iu (125 mcg) 1 Year Supply for Immune Support, Healthy Muscle Function, and Bone Health - Non-GMO, Gluten Free in Organic Extra Virgin Olive Oil, (Mini Softgel), 360 Count

NatureWise

$14.82

More Details
Main highlights
- USA MANUFACTURED, 3RD PARTY TESTED: All NatureWise supplements are proudly manufactured the USA in facilities that comply to the strictest cGMP standards and undergo rigorous testing by third party labs to ensure the highest quality and purity.
- NATURALLY-SOURCED, NON-GMO: These Vitamin D3 immune support and bone health supplements* are formulated with a naturally-sourced vitamin D3 ingredient, and are gluten-free and non-GMO. Packaging may vary due to high demand, same great product and ingredients.
- IN ORGANIC COLD-PRESSED OLIVE OIL: NatureWise Vitamin D3 is formulated with organic, cold-pressed olive oil that doesn't use heat or hexanes, to enhance the absorption of vitamin D3.*
- IMMUNE, MOOD, BONE & MUSCLE SUPPORT*: Vitamin D supports healthy bones, muscle function, and a strong immune system.*
- CONTENTS CERTIFIED NSF: This supplement is NSF-contents certified, which means its contents are thoroughly tested for accuracy and purity. Ingredients are also analyzed for this certification to confirm they match label contents.
$14.82
4
49% Off

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Nature Made
49% Off

Nature Made Vitamin D3 2000 IU (50 mcg), Vitamin D Supplement for Bone, Teeth, Muscle and Immune Health Support, 250 Softgels, 250 Day Supply

Nature Made

$11.99

$23.69
(49% Off)

More Details
Main highlights
- United States Pharmacopeia (USP) Verified, #1 Pharmacist Recommended Vitamin & Supplement Brand*
- These statements have not been evaluated by the Food and Drug Administration; this product is not intended to diagnose, treat, cure, or prevent any disease
- These Vitamin D 2000IU softgels help improve calcium absorption and contain 50mcg of Vitamin D 3, the body’s preferred form of Vitamin D
- Sourced from high-quality ingredients, this Nature Made Vitamin D3 supplement is gluten free and has no color added and no artificial flavors
- Nature Made Vitamin D 2000 IU softgels support bone health, teeth health, muscle health, and provide immune support
- Immune, muscle, teeth and bone health support supplement: contains one 250 count bottle of Nature Made Vitamin D3 2000 IU (50 mcg) Softgels for a 250-day supply
- Helps slow biological aging of cells; In a clinical study, taking 2000 IU vitamin D3 supplements for 4 years helped prevent leukocyte telomere shortening, preventing the equivalent of approx 3 years of cellular aging compared with placebo in older adults
- Adults, take one Vitamin D3 softgel daily with water and a meal
$11.99
$23.69 (49% Off)
5
Best Value
51% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Nature Made
51% Off

Nature Made Vitamin D3 5000 IU (125 mcg) Softgels, Extra Strength Vitamin D Supplement for Bone and Immune Health Support, 180 Count, 180 Day Supply

Nature Made

$14.15

$28.99
(51% Off)

More Details
Main highlights
- United States Pharmacopeia (USP) Verified, #1 Pharmacist Recommended Vitamin & Supplement Brand*
- This high dose Vitamin D 3 product is for those with higher Vitamin D needs and/or deficiency, as determined by a healthcare professional (1)
- These statements have not been evaluated by the Food and Drug Administration; this product is not intended to diagnose, treat, cure, or prevent any disease
- Sourced from high-quality ingredients, this Nature Made Vit D3 supplement is gluten free and has no color added and no artificial flavors
- Nature Made Vitamin D 5000 IU softgels help improve calcium absorption, support bone health, teeth health, muscle health, and provide immune support
- Immune, muscle, teeth and bone health support supplement: contains one 180 count bottle of Nature Made Extra Strength Vitamin D3 5000 IU (125 mcg) Softgels for a 180-day supply
- Adults, take one Vitamin D3 Nature Made softgel daily with water and a meal
$14.15
$28.99 (51% Off)

Best vitamin ds - October 2025

THORNE - Vitamin D-5000 - Vitamin D3 Supplement - Support Healthy Bones, Teeth, Muscles, Cardiovascular, and Immune Function* - NSF Certified for Sport - Dairy-Free, Soy-Free - 60 Capsules

Sports Research® Vitamin D3 + K2 w/ Coconut Oil - Vegan Vitamin D 5000iu & Mk7 Vitamin K 100mcg for Bone & Immune Support - Vegan Certified · Non-GMO · Soy Free - 60 Softgels

NatureWise Vitamin D3 5000iu (125 mcg) 1 Year Supply for Immune Support, Healthy Muscle Function, and Bone Health - Non-GMO, Gluten Free in Organic Extra Virgin Olive Oil, (Mini Softgel), 360 Count

Nature Made Vitamin D3 2000 IU (50 mcg), Vitamin D Supplement for Bone, Teeth, Muscle and Immune Health Support, 250 Softgels, 250 Day Supply

Nature Made Vitamin D3 5000 IU (125 mcg) Softgels, Extra Strength Vitamin D Supplement for Bone and Immune Health Support, 180 Count, 180 Day Supply

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