Product Comparison

Editor’s Choice

Approved Science Vitamin D3+K2

If you are looking to improve your bone, cardiovascular, and immune health then Approved Science Vitamin D3+K2 is something that deserves your undivided attention. Of all the Vitamin D supplements currently available on the market, this is the one that deserves a closer look and very likely, the one that will change your life!

It contains the recommended dosage of 5000 IU of Vitamin D3 combined with Vitamin K2 for a synergistic combination to ensure calcium is directed to the bones in an efficient and optimal manner. In addition to having the right vitamins, this formula uses the ideal forms of the vitamins (Vitamin D as D3 and K as K2 MK-7) in clinically researched amounts. It was the only product we found that contains BioPerine^® to enhance nutrient absorption and consequent utilization for better results. It does not contain any additives or preservatives and is totally 100% safe to use with no long-term side effects.

Quality: Approved Science Vitamin D3+K2 contains high-grade, natural, clinically-verified ingredients that are GMP-certified.

Reputation: Approved Science’s reputation is top quality. They are well known in the industry and are an established company that provides great customer support service, secure and easy checkout as well as prompt, efficient delivery. This manufacturer has several third-party monitoring services, including buySAFE, Norton, and Trustee, as well as an A+ rating from the quality monitoring company QualityTrusted. Approved Science’s commitment to the health industry and consumers is excellent, providing further legitimacy to their products by producing them in an FDA-registered laboratory.

Money-Back Guarantee: Every item sold is supported by a 60-day 100% money-back guarantee. Such guarantees from manufacturers show strong confidence in their products’ ability to deliver results. Great news for consumers.

Bottom Line: If you are looking for a product that ticks all the boxes for an effective Vitamin D supplement that comes from an established reputable company with an excellent money-back guarantee, then this is the supplement for you.

It would be good to note that, due to high demand, Approved Science Vitamin D3+K2 is often sold out. To avoid having to back order, don’t hesitate to make that purchase when you see it in stock.

See The Full Review

Dr. Mercola Vitamins D3 & K2

Marketed as a supplement that improves bone & joint comfort, blood flow, and immunity, Dr. Mercola’s Vitamins D3 & K2 is our second choice. With 5000 IU of Vitamin D3 and 180 mcg of K2, this product seems to have it all, except a bioavailability enhancer. Nevertheless, there are a few reasons it didn’t rank higher.

The price on this is quite fair though there are some cheaper options. It was unclear to us whether or not the manufacturer offers a satisfaction guarantee. The return policy has two options depending on your membership with Mercola Market. Non-expired consumables can be returned for up to 90 days or 1 year depending. However, there is no clarification on whether this refers to opened or only unopened products.

Dr. Mercola’s Vitamins D3 & K2 is made according to the GMP guidelines and the manufacturer checks the product throughout the process. However, there is no mention of third-party testing which adds assurance that each element is what it’s supposed to be. We appreciate the claim that Dr. Mercola’s Vitamins D3 & K2 is made without any harmful fillers or binders. Yet, this doesn’t exclude the “non-harmful” binders, fillers, and anticaking agents that it does contain. Read our full review for a deeper understanding of this formula and its price.

Click here to read the full review

Designs For Health Vitamin D Supreme

Our third pick is a Vitamin D supplement that is vegetarian, dairy-free, and soy-free. Providing the clinically recommended dosage of 125 mcg Vitamin D, Vitamin D Supreme also contains a combination of 500 mcg K1 and 50 mcg K2. But is it as effective as a product with only K2 but in a more significant dosage and no K1? 

When reviewing this product, we were pleased to see a price tag that suggests quality – not cheap, but affordable. We appreciate that this product is formulated with the optimal vitamin types according to clinical studies. However, we were a little puzzled that the K2 dosage wasn’t as high as other science-based products. Nevertheless, with 125 mcg of D3, this product had the right amount to qualify it for our top Vitamin D products. 

We also liked that the product comes from a well established brand and the overall reviews for this product were positive. The manufacturer follows the GMP guidelines and guarantees their products are what they are supposed to be. Yet, unlike our top pick, this product does not undergo third-party testing and there is no satisfaction guarantee. Read our full review for more about how this product stacks up.

Click here to read the full review