Contents
The Best Best Vitamin D Supplement of 2023 – Reviewed and Top Rated
2,019 Reviews Scanned
- IMMUNE, MOOD, BONE & MUSCLE SUPPORT*: Vitamin D supports healthy bones, muscle function, and a strong immune system.*
- 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.*
- 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.
- 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.
- PLANT BASED: Our Vitamin D and K supplement for women and men contains vegan D3 (cholecalciferol) from lichen and K2 from fermented chickpeas with added Coconut MCT Oil for enhanced absorption. This two-in-one super supplement is 100% free of animal ingredients and encapsulated in the first carrageenan-free plantgel softgel.
- ONE-A-DAY FORMULA: Get the best of both worlds with Sports Research D3+K2. Just one easy-to-swallow veggie softgel provides 125cg (5000iu) of Vegan & 100mcg of Vitamin K2 (as MK7, the form of K2 with the highest bioavailability) for stronger bones and immune system support so you can shine your brightest.*
- QUALITY TESTED: We hold all of our supplements to a higher standard. Our K2 with D3 vitamin supplement is Vegan Certified, Non-GMO Project Verified, and free of unwanted fillers, carrageenan, gluten, and soy. Each batch is third-party tested for quality and manufactured in the USA in a cGMP-compliant facility.
- THE SPORT OF LIFE: Founded in Southern California in 1980, Sports Research is a family-owned business born from a passion for fitness and wellness. Our goal is to embrace the sport of life through research-backed products created for every body—inside and out.
- Immune, muscle, teeth and bone health support supplement: contains one 300 count bottle of Nature Made Vitamin D3 1000 IU (25 mcg) Softgels for a 300-day supply
- Nature Made Vitamin D 1000 IU softgels support bone health, teeth health, muscle health, and provide immune support
- These Vitamin D 1000IU softgels help improve calcium absorption and contain 25mcg of Vitamin D 3, the body’s preferred form of Vitamin D
- Adults, take one Vitamin D3 softgel daily with water and a meal
- Sourced from high-quality ingredients, this Nature Made Vitamin D3 supplement has no color added and no artificial flavors
- Vitamin D3: Supports healthy teeth, bones, and muscles, as well as cardiovascular health and immune function*
- 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
- 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
- VITAMIN D3 WITH K2– Our vitamin K2 and D3 with magnesium supplement is made up of 5000 IU of vitamin D3 and 50 mcg of vitamin K2. It also includes a unique blend of vitamin B6, zinc, magnesium, MCT oil, and ox bile you won't find in other formulas – Includes a 60-day supply.
- SMART SYNERGY – Our D3 + K2 vitamin supplement goes beyond the typical combo. Formulated with vitamin D3 with MK‑7 vitamin K2, it includes essential cofactors like magnesium, B6, and zinc to help your body absorb, activate, and properly use vitamin D. It’s not just what you take—it’s what your body can use.
- ENHANCED ABSORPTION - Our powerful K2 D3 vitamin supplement contains fat-soluble vitamins that require dietary fat for proper absorption. MCT powder, a healthy fat source, enhances the bioavailability of vitamin D with K2, allowing your body to absorb and utilize these essential nutrients more efficiently.
- FORMULATED IN THE USA – Our vitamin D3 + K2 is thoughtfully developed in the United States and made in cGMP-certified facilities under strict quality standards. Crafted with care in every D3 K2 vitamin 5000 IU batch to ensure purity, potency, and consistency you can trust.
- Try for 30 days: If you are unhappy with this product, reach out to us within 30 days of your purchase date and we will take care of you.
Last update on 2025-09-08 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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- Brand Value: Every brand of Best Vitamin D Supplement has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
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- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Best Vitamin D Supplement.
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FAQ:
Q: What is the best brand of vitamin D?
A: Carlson Labs Vitamin D3 is our pick of the best vitamin D supplement on the market! It is a vitamin D pill that uses the most effective form of supplemental vitamin D available, and provides a healthy vitamin D dosage.
Q: What are the best vitamin D natural sources?
A: Some Natural Sources Of Vitamin D In Foods Salmon. Salmon is one of the greatest sources of vitamin D that we want to mention in his article and want all of the readers to consider consuming for … Herring And Sardines. Herring is known as one of the natural sources of vitamin D and it can be served raw, smoked, canned, or pickled. Canned Tuna Fish. … Fortified Milk. … Certain Mushrooms. … Egg Yolks. … More items…
Q: Is vitamin D3 better for you than vitamin D?
A: Your body deals with the different types very differently. According to recent research, Vitamin D3 is approximately 85% better in raising and maintaining Vitamin D concentrations in the body and produces 200-300% greater storage of Vitamin D than Vitamin D2.
Q: How effective are vitamin D supplements?
A: Vitamin D is More Effective Than Flu Vaccine. A recent study published in the British Medical Journal found that vitamin D supplementation was a safe and effective way to minimize risk of acute respiratory infections (3).
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