5MinuteReviews is reader-supported. When you buy through links on our site, we may be financially compensated. Learn more

Picture of Food, Plant with text VITAMIN.
The Best Vitamin D3 Supplements for Effectiveness and Value

UPDATED Mon, 13 May 2024

Aging and symptoms associated with menopause can be improved with proper vitamin D3 levels. Supplementing with vitamin D3 can help boost energy levels and fight fatigue.  It can also help with joint pain as well as bone health. Vitamin D also supports a healthy immune system. Many experts recommend supplementing 5,000 IU (125 mcg) per day or more. 

At 5MinuteReviews, we've chosen a few of our most recommended K2 + D3 supplements available online. We recommend Clinical Effects K2+D3 as the best Vitamin D3 supplement available on the market today.

Studies estimate that about 42% of the US population is deficient in vitamin D. This percentage increases with age and certain risk factors such as being overweight, having darker skin, limited exposure to sunlight, always using sunscreen, and not eating animal products.

Fatigue is a common symptom of low vitamin D. Supplementing with vitamin D3 can help boost energy levels and mood.

Vitamin D is also good for bone, joint and muscle health. Taking vitamin D3 improves calcium absorption and can help strengthen bones and improve joint comfort.

Support health and immune function. Healthy levels of vitamin D have been shown to help reduce risk for certain types of disease and boost immune health.

What is the best way to increase vitamin D?

We found clear standouts – and many that you should avoid at all costs. Ready to discover which is right for you?

Many experts recommend taking 5,000 IU (125 mcg) per day or more. Most multivitamins only contain vitamin D in small amounts too low to be effective. Vitamin D3 is most effective at raising vitamin D levels.

Vitamin D3 and Vitamin K (specifically K2) should be taken together. These vitamins work synergistically to boost absorption and effectiveness.

Our research concluded that Clinical Effects K2+D3 contains everything an effective vitamin D3 supplement should for a great value.

Keep reading to learn more about our thorough review process.

Our Research-Backed 9-Point System

When choosing a vitamin D3 supplement, just going with any off-the-shelf unknown vitamin D3 supplement doesn't cut it.

Here at 5 Minute Reviews, we use a proven 9-point ranking system to test and compare all of our products. It’s important to know how our ranking system works:

  1. Product quality based on material and sourcing.
  2. The presence of harmful material/ingredients.
  3. Manufacturer upholds high quality assurance protocols.
  4. The science, research and development behind the product.
  5. High-quality, regulated manufacturing facilities and processes.
  6. Third-party testing to validate the quality of the product.
  7. Customer reviews – removing fake/paid reviews so only real opinions count.
  8. Price.  Is it worth the money?
  9. Return policy and money back guarantee.

A Guide To Our Rankings: How We Picked our Top Choice

After intense research and consultations with numerous customers interviewed, we found the following 3 products that became our top picks. We chose these three based on the following factors:

  • Customer Satisfaction
  • Impressive Results 
  • Ingredients
  • Formula Transparency
  • Affordability/Value
  • ​Company Reputation

ADVERTISEMENT

5MinuteReviews is owned and operated by the same company that owns certain products featured on this website, including the products ranked number one. This is an advertisement which contains reviews and information about Clinical Effects products. While third-part products are presented, this is a promotional side focused on the sale of Clinical Effects products. In addition, we receive compensation from certain companies whose products are featured on this website when you purchase a product using the links on this website. This is not an independent news article, blog, or consumer protection update. Editorial content is not a substitute for, nor should it replace the advice of your healthcare professional.

Our Top Picks For Most People

Review Call To Action headers
Vitamin D3 Supplement
Review Item 1
5MR_CE-K2D3
Review Item 2
5MR_OWELI_K2D3
Review Item 3
5MR_ENUVIA_D3K2
Review Rating 1
Heart & Vascular Health
Review Rating 2
Bone Health
Review Rating 3
Health Support
Review Rating 4
INGREDIENTS
Review Rating 5
COST
Review Rating 6
CUSTOMER HAPPINESS
  • https://www.clinicaleffects.com/products/k2d3/

    Pros:

    • Promotes strong bones and circulatory health
    • Contains vitamin D3 to support a healthy immune system
    • Uses MK-7 form of K2 to guide proper calcium absorption
    • Complete and balanced formula with transparent labeling
    • Includes patented Bioperine (black pepper) for better absorption
    • Great value with cost-saving packages
    • 180 day money-back guarantee

    Cons:

    • Only available online
    • Sometimes runs out of stock

    The Bottom Line

    Vitamin K2+ D3 from Clinical Effects passed all of our tests with flying colors.

    The formula, ingredients, effectiveness, and cost of this vitamin D3 and K2 supplement gave us, and our officials, the best results.

    Most vitamin D supplements can cost you way more than they're worth. Plus, the cheap ingredients and proprietary formulas used by many manufacturers can leave you wondering what’s really in there. That's why we believe Clinical Effects Vitamin K2 + D3 is the best, most innovative D3 and K2 supplement that really took us by surprise.

    But we weren't the only ones. Take a look at the positive reviews from their site:

    "My doctor told me I was low on vitamin D. I’d been taking these for a while and had my levels rechecked and they are up. Looks like these are doing the job." ~ Bobby M.

    "I don’t get a lot of sunlight between where I live and working an office job. I seemed to be getting more fatigued and felt stiff. After taking these for a couple months I feel more energy and am less achy." ~ Jay T.

    To secure your order of Clinical Effects Vitamin K2 + D3, Click the link below now (but do hurry, these are going fast).

  • 5MR_CE-K2D3

    Title

    Item ID

    Review URL

    https://www.oweli.com/products/k2d3/

    Is Amazon URL?

    No

    Pros:

    • Works very well in promoting energy throughout the day
    • Helps with deep, restful sleep without sedating you
    • Joints and bones feel stronger after consistent use

    Cons:

    • Effects are gradual and subtle, not instant
    • Hard to find in stock usually because of high demand
  • 5MR_CE-K2D3

    Title

    Item ID

    Review URL

    https://amzn.to/3AFgmUr

    Is Amazon URL?

    Yes

    Pros:

    • Includes Mk-7 form of Vitamin K and D3
    • Also includes calcium
    • Uses patented BioPerine
    • Helps balance calcium levels in the body

    Cons:

    • Only available on Amazon

ADVERTISEMENT

5MinuteReviews is owned and operated by the same company that owns certain products featured on this website, including the products ranked number one. This is an advertisement which contains reviews and information about Clinical Effects products. While third-part products are presented, this is a promotional side focused on the sale of Clinical Effects products. In addition, we receive compensation from certain companies whose products are featured on this website when you purchase a product using the links on this website. This is not an independent news article, blog, or consumer protection update. Editorial content is not a substitute for, nor should it replace the advice of your healthcare professional.