Vitamin D Comparison - October 2025
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you9.8
1NatureWiseNatureWise 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
9.9 simple to consume9.9 worth the money9.8 FlavorMain 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.
9.7
2Nature Made51% OffNature Made Extra Strength Vitamin D3 5000 IU (125 mcg), Dietary Supplement for Bone, Teeth, Muscle and Immune Health Support, 180 Softgels, 180 Day Supply
9.9 simple to consume9.8 worth the money9.8 AbsorbencyWhy we love it
Vitamin D3 supports immune health
Vitamin D3 helps improve calcium absorption
Vitamin D3 supports bone, muscle, and teeth health
9.6
3THORNETHORNE - 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
9.9 simple to consume9.9 Absorbency9.8 FlavorMain highlights- Vitamin D3: Supports healthy teeth, bones, and muscles, as well as cardiovascular health and immune function*
- 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 is more potent and better absorbed than vitamin D2*
- 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
- Free From: Doesn't contain gluten, eggs, tree nuts, peanuts, dairy, soy, fish, or shellfish
Our ranking system
At BestChoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.