Absorption Vitamin D Comparison - July 2025
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you9.9
1SBR NutritionMAX Absorption, Vitamin D3 + K2 (MK-7) Liquid Drops with MCT Oil, Peppermint Flavor, Helps Support Strong Bones and Healthy Heart
Why we love it
High potency: D3 K2 combo for optimal health.
Premium quality: 1400 IU D3 25mcg K2.
Liquid advantage: Higher absorption rate.
Main highlights- USDA ORGANIC – Our best-selling product is now certified USDA Organic – meaning better quality ingredients for a better quality you!
- THE LIQUID ADVANTAGE – Aside from being easier to consume, liquid drops may also have a comparatively higher absorption rate when compared to supplements in solid form. Combining high quality ingredients with a higher absorption rate is what we like to refer to as the “Liquid Advantage.”
- PREMIUM QUALITY – Two drops (*not* two dropperfuls!) contain 1,400 IU of Vitamin D3 and 25mcg of Vitamin K (as MK-7), the form of K2 with the highest bioavailability. In addition, our liquid base includes MCT oil which has many benefits including enhanced metabolism and improved energy levels.
- POWERFUL COMBO – Vitamins D3 & K2 are natural partners. Most know the benefits of Vitamin D (maintaining strong bones, immune system support, healthy muscle function, etc.), but many don’t realize that Vitamin D benefits are enhanced when combined with Vitamin K2. Our powerful D3 + K2 formula is designed to help optimize your health.
- JUST THE GOOD STUFF – Peppermint flavor. NO gluten, sugar, milk, yeast, salt, or wheat. No unnecessary fillers are used.
9.8
2Vital NutrientsVital Nutrients Vitamin D 5000 IU | Vitamin D3 Supplement | Healthy Bones, Teeth, Muscles*| Cellular & Immune Function | Calcium Absorption | Gluten, Dairy and Soy Free | 90 Capsules
Why we love it
Supports bone and immune health.
Free from common allergens.
Highly trusted by professionals.
Main highlights- Trusted by Healthcare Practitioners Worldwide: Vital Nutrients was founded 30 years ago by practitioners who set out to make a positive and lasting impact on the health of people and planet. Today, our premium line of clinically relevant, pure, clean-label formulas is trusted by healthcare practitioners and health-conscious consumers worldwide
- Quality You Can Trust: Our rigorous quality assurance program includes third-party independent laboratory testing of raw ingredients and finished products for purity and potency to ensure what’s on the label is in the bottle
- Essential Vitamin D Supplement: The active form of vitamin D3 supports cardiovascular, cellular, and bone health, immune function, and serum calcium uptake. One in 4 Americans do not get adequate vitamin D intake*
- Easily Absorbed Vitamin D Supplements: Benefit from 5,000 IU (125mcg) of the active and most easily absorbed form of vitamin D, vitamin D3 (cholecalciferol) in an easy-to-swallow capsule for a potent 625% Daily Value of this vital nutrient*
- Clean Formula: Free from gluten, dairy, peanut, tree nut, fish, shellfish, soy, sesame, and egg. Non-GMO. Made without artificial fillers, coatings, binders, or colors
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
Why we love it
Supports immune and cardiovascular health.
Ideal for athletes and active individuals.
Easy to swallow capsules.
Main 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: Supports high-performance nutrition programs and is NSF Certified for Sport
- 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.