Best Vitamin D3 & K2 Supplements

5 Best Vitamin D3 & K2 Supplements For Optimal Health!

Do you want to improve your health? I'm going to show you the best vitamin D3 and K2 supplements on the market that can help you do just that.

Feeling rundown and like you could use a little help? You're not alone.

In fact, it's estimated that up to 42% of the population is deficient in vitamin D3. But that's nothing to worry about – we've got you covered!

Taking care of your health doesn't have to be hard. With our top-rated supplements, you can get all the benefits of Vitamin D3 and K2 in one easy-to-take pill, liquid drop, or spray.

Plus, they're affordable and you will be more than satisfied with any of our top picks. So what are you waiting for? Start feeling better today!

How We Picked

It's a difficult decision to find a vitamin d supplement to buy.

Most people don't have time to read through thousands of reviews on Amazon, and even if they did, they still wouldn't know which supplements are the best for them.

We've done all the hard work for you and have found the top 5 vitamin D3 and K2 supplements that support bone and heart health, cardiovascular health, and immune function.

So if you need to balance your vitamin D levels don't wait any longer.

Disclosure: We only recommend things we’ve personally used or come highly recommended by trusted peers. Using one of our referral links might give us a small commission which helps support this website at no additional cost to you. If you’d like to learn more check out our disclaimer page.

Thorne Research Vitamin D + K2

Best liquid vitamin D3 and K2 supplement

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Why We Chose

Looking for a way to get your daily dose without having to take a pill? Thorne Research Vitamin D + K2 liquid is the perfect solution!

Simply take it directly in your mouth, drop it on your food, or in a drink. This supplement uses a dropper for easy and accurate dosing, so you can be sure you’re getting exactly what you need.

This is the brand I personally use as I want to control how much I'm getting. I live in a sunny area and get plenty of direct sunlight so I don't always require a high dose throughout the year.

This unique formula from Thorne Research offers you one of the best dietary supplements you can buy.

The Rundown

Thorne is a high-quality supplement manufacturer that is chosen by champions and trusted by 100+ pro teams.

  • Thorne has collaborated with Mayo Clinic on wellness research and content, making them a reliable source of information.
  • Thorne is also a proud partner of 11 U.S. Olympic Teams, meaning that they are a trusted source of supplements for athletes. When it comes to quality, Thorne is the clear choice.
  • One bottle has 600 servings of 1,000 IU of D3 and 200 mcg of K2.


✔ Trusted brand by physicians

✔ 600 servings

✔ MCT oil as carrier


✖️ Sometimes difficult to dispense drops

Sports Research Vitamin K2 + D3 with Organic Coconut Oil

Best supplement that uses coconut oil as the carrier.

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Why We Chose

Looking for a way to get your daily dose without resorting to animal products? Sports Research Vitamin K2 + D3 with Organic Coconut Oil is the perfect solution!

This supplement is sourced from lichen, making it 100% vegan. Since it's a fat-soluble vitamin the organic coconut oil in this formula helps your body absorb the vitamins more efficiently.

The Rundown

A lot of people don't realize how important these nutrients are for their overall health.

These vitamins are essential for calcium absorption, which helps to keep bones strong and healthy. They also play a role in immune function and help to reduce inflammation.

Unfortunately, many people don't get enough of these essential vitamins from their diet. That's where this supplement comes in.

  • Manufactured in the USA in cGMP-compliant facilities.
  • 3rd party quality tested right here in the USA.
  • Each serving has 5000 IU of vitamin D3 and 100 mcg of vitamin K2.

So you can be sure you're getting a high-quality product that will help you to reach your daily recommended intake of these important vitamins.


✔ 3rd party tested

✔ Manufactured in USA

✔ MCT oil used as carrier

✔ Uses MK-7 for vitamin K2


✖️ Excessive heat can melt capsules

NOW Foods Vitamin D3 and K2

Best for cardiovascular support.

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Why We Chose

This particular supplement uses the MK-7 subtype of vitamin K2, which many experts believe is the most effective form of this nutrient for cardiovascular health.

Additionally, this supplement is easy to take and assimilates well into the body, so you can be confident you're getting the full benefit of the nutrients.

The Rundown

This supplement is packaged in the USA by a family-owned and operated company since 1968.

  • The company also manufactures and ships its products from the USA.
  • They use only the highest quality ingredients and follow all current Good Manufacturing Practices (cGMP).
  • 5,000 IU of vitamin D3 per serving


✔ Packaged in USA

✔ Uses MK-7 for vitamin K2

✔ Manufactured in GMP facility


✖️ Uses microcrystalline cellulose

Life Extension Vitamins D and K with Sea-Iodine

Best if you want two forms of vitamin K along with iodine.

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Why We Chose

Life Extension Vitamins D and K with Sea-Iodine is a great way to get your daily dose of vitamins D3 and K2.

This supplement also includes vitamin K1, plus iodine if you need it. This is perfect for people who want to make sure they're getting all the nutrients they need.

The Rundown

When it comes to vitamins and supplements, quality is key. You want to make sure you are taking products that are sourced from the best ingredients and that are manufactured to the highest standards.

  • Raw ingredients are of the finest quality and the product is certified non-GMO and gluten-free.
  • It is also manufactured in the USA to the strictest standards. And for peace of mind, a Certificate of Analysis is available.
  • 60 servings of 5,000 IU of vitamin D3, 2,100 mcg of vitamin K1 and K2 combined, and 1,000 mcg of iodine

So if you are looking for a vitamin D3 and K2 supplement that meets all your needs, this one might be the best for you.


✔ Contains vitamin K1 and Iodine

✔ High dose of vitamin D3

✔ Manufactured in USA


✖️ Contains microcrystalline cellulose

✖️ Exposure to heat can melt capsules

Mary Ruth’s Vegan Vitamin D3 and K2 Liquid Spray

Best vitamin D3 and K2 supplement for kids.

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Why We Chose

If you’re looking for a vitamin D3 and K2 supplement that’s easy to take, look no further than Mary Ruth’s Vegan Vitamin D3 and K2 Liquid Spray.

This formula is perfect for kids, and it comes in a convenient spray form that makes it easy to take.

No more hard-to-swallow pills or capsules! Give your kids the vitamins they need for good health with Mary Ruth’s Vegan Vitamin D3 and K2 Liquid Spray.

The Rundown

Manufactured by Mary Ruth’s, a company that is dedicated to using only the highest quality ingredients. As a result, you can be sure that you are getting a product that is both safe and effective.

  • Mary Ruth’s vitamin D3 and K2 supplement is the perfect choice for those who are looking for a plant-based, vegan option that is also non-GMO.
  • The fewest number of allergens are used in this product, making it a great choice for those with allergies.

With all of these benefits, it’s no wonder that this supplement is quickly becoming a popular choice among consumers.


✔ Easy to take liquid spray

✔ Organic olive oil

✔ High quality


✖️ Only 30 servings per bottle

Health Benefits Of Vitamin D3 And K2

Bone Health

Vitamin D3 is essential for strong and healthy bones.

  • It helps the body absorb calcium and phosphorus, which are two minerals that contribute to density and strength.
Best Vitamin D3 and K2 Supplements - Bone Health

Without enough, the body cannot properly utilize these minerals, which can lead to weak bones and teeth. It also plays a role in regulating blood levels of calcium and phosphorus.

Heart Health

A lack of vitamin D3 can have a significant impact on your heart health. Two studies have found that having a low concentration in your blood can increase the risk of a heart attack.

Best Vitamin D3 and K2 Supplements - Heart Health

Vitamin D3 helps to regulate heart function, and its deficiency can lead to an irregular heartbeat and an increased risk of heart disease.

Furthermore, inadequate levels can also cause the thickening of heart walls, which can block blood flow and lead to atherosclerosis and heart failure.

Disease Prevention

Vitamin D3 is a nutrient that provides many health benefits.

  • In addition to its basic role in promoting good health, it has also been shown to play a role in preventing chronic diseases.
Best Vitamin D3 and K2 Supplements - Disease Prevention

Studies suggest that vitamin D3 helps in improving the symptoms of multiple sclerosis, which is a disabling disease of the central nervous system.

There have also been studies that support vitamin D3 reduces the development of colds and flu.

These studies suggest that vitamin D3 may be an important nutrient for maintaining good health and preventing chronic diseases.

Blood Pressure Regulator

Vitamin K is an essential nutrient for a healthy cardiovascular system.

Best Vitamin D3 and K2 Supplements - Blood Pressure Regulator

A recent study has shown that by increasing your intake of this vitamin, you can reduce arterial stiffness and improve blood pressure levels which are key factors in maintaining the health of our organs!

Anti Depressant

Vitamin D is as important for mental wellness, as physical well-being.

Best Vitamin D3 and K2 Supplements - Anti Depressant

There's enough evidence to show that having a deficiency can lead someone who suffers from depression-like symptoms to be at higher risk than those without these ailments.

Testosterone Booster

Best Vitamin D3 and K2 Supplements - Testosterone Booster

New Danish research found that men with a vitamin D deficiency were more likely to have low testosterone levels, suggesting that inadequate levels of this vitamin may contribute to these health problems.

In turn, low testosterone concentrations can affect fertility or lead to osteoporosis and loss of muscle mass.

Frequently Asked Questions

A lot of people are interested in vitamin D3 and K2, but they don't know where to start when it comes to learning more about these nutrients.

It can be hard to figure out the best vitamin D3 and K2 supplements you should be taking, and even harder to determine if they're working for you.

We've put together a list of the most frequently asked questions so that you can learn more about these important nutrients.

What is Vitamin D3 and K2 good for?

Vitamin D3 and K2 are both essential nutrients for overall health.

It is important for calcium absorption and maintaining strong bones, while vitamin K2 helps to protect against heart disease and encourages healthy blood circulation.

Additionally, vitamin D3 K2 work together to promote a healthy immune system and help keep cells functioning properly.

When is the best time to take vitamin D3?

There is some debate over when the best time to take this supplement, but most agree that it is best to take them in the morning.

The reason for this is that it can slightly raise your body temperature, and taking them in the morning gives your body time to adjust to the higher temperature before bedtime. Taking them at night may disrupt your sleep patterns.

What is the best vitamin D3 to take?

Take one that provides you with the recommended daily allowance (RDA) of 400-800 IU.

Can I take vitamin D3 and K2 every day?

Yes, you can take this supplement every day. In fact, many experts recommend doing so in order to maintain optimal health.

Vitamin D3 is essential for calcium absorption and healthy bones, while K2 helps to keep calcium in the bones and out of the arteries. Taking both vitamins together ensures that your body gets the nutrients it needs for optimal bone health.

Who needs vitamin D3?

According to the NIH, anyone who doesn't get enough exposure to sunlight needs to supplement vitamin d.

How much vitamin D3 should I take a day?

The amount you should take each day depends on several factors, including your age, health status, and sun exposure.

The Institute of Medicine (IOM) recommends a daily intake of 600 IU (international units) for adults aged 19-70 and 800 IU for adults over 70. 

However, some experts feel that these recommendations are too low and that most people need more than the IOM recommends.

The best way to determine how much you need is to have your blood tested for 25-OH levels.

This testing can be done through a standard blood test at your doctor's office. Your 25-OH level will indicate whether or not you are deficient and how much you need to supplement.

A level of 30 ng/ml or higher is considered sufficient, while levels below 20 ng/ml indicate a deficiency. If your levels are below 30 ng/ml, you may want to consider taking a supplement.

What happens when you start taking vitamin D3?

Several things happen when you start taking it.

  • Your body begins to absorb calcium more effectively.
  • You may experience improved bone density.
  • Your immune system may become stronger.
  • You may have a reduced risk of developing cancer.
  • You may see an overall improvement in your health.

What are the symptoms of a vitamin D deficiency?

There are a number of symptoms that can indicate that you may have a deficiency.

These can include fatigue, muscle weakness, bone pain, and an increased risk of infections. Many people with low levels also report feeling depression and anxiety.

If you think you may have low levels, it's important to talk to your doctor to get a blood test to confirm. Treatments for low levels typically involve getting more exposure to sunlight or taking a supplement.

What is the difference between vitamin D and vitamin D3?

They are both forms of Vitamin D. However, vitamin D3 is the more bioactive form of the vitamin. This means that it is more readily absorbed and used by the body.

Additionally, many over-the-counter multivitamins contain the form of vitamin D2. While this form is also a valid source of the vitamin, it is not as bioavailable as vitamin D3.

Can vitamin D affect blood pressure?

Yes, it can have an effect on blood pressure. There is some evidence to suggest a deficiency can lead to high blood pressure and supplements can help lower blood pressure in people who are deficient in.

However, more research is needed to confirm these effects and it is not clear whether everyone would benefit from taking this supplement for hypertension.

What foods contain vitamin D?

There are a few different food sources, although the best way to get this nutrient is through exposure to sunlight.

Foods that contain this vitamin include fatty fish like salmon and tuna, egg yolks, and fortified foods like milk, orange juice, and cereals.

Some mushrooms also contain some. It's important to note that our bodies can also generate this nutrient on their own when we're exposed to sunlight.

Bottom Line

And that’s a wrap! We hope you found this information helpful and are now ready to purchase the best vitamin D supplements for your needs.

We've done all the hard work for you and have found the best ones on Amazon. Remember, clicking the link will take you directly to Amazon where you can check out the latest prices and read more reviews.

Thanks for reading our blog post – we hope you found it helpful.

Before You Go...

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