Product Reviews

Best Vitamin K Supplements of 2023

Vitamin K is a fat-soluble vitamin; it is an important nutrient that plays a role in everything from bone metabolism to blood sugar control. Vitamin K was discovered last of the four fat-soluble vitamins (A, D, E and K). In 1929, Danish scientist Henrik Dam discovered a compound that plays a role in coagulation (blood coagulation). When he published his findings in a German newspaper, he called this compound “Koagulationsvitamin”, which was known as vitamin K. “Vitamin K”, the generic name of a family of compounds with chemical structure. 2-Methyl-1, 4-Naphthoquinone, is a fat-soluble vitamin naturally present in certain foods and available as a dietary supplement. These compounds include phylloquinone as (vitamin K1) and a series of menaquinones as (vitamin K2).

Phylloquinone is found mainly in green leafy vegetables and is the main food form of vitamin K. Menaquinones, which are mainly of bacterial origin, are present in modest amounts in various foods of animal and fermented origin. Almost all menaquinones, especially long-chain menaquinones, are also produced by bacteria in the human intestine.

The supplements we have shortlisted have great reviews, and considered best ones in the market. 

Our Top 10 Vitamin K Supplements For You

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Vitamin K is present in most multivitamin / multimineral supplements, usually at values below 75% of the DV (daily value). It is also feasible in dietary supplements that contain only vitamin K or vitamin K combined with some other nutrients, often calcium, magnesium and / or vitamin D. These supplements tend to have a dose range. Vitamin K is wider than multivitamin/mineral supplements; some provide 4,050 mcg (5,063% DV) or another very high amount.

Vitamin K is one of the treatments for bleeding caused by an overdose of anticoagulant warfarin (Coumadin). It can be administered orally, intravenously or subcutaneously. Vitamin K supplements have been clinically tested to inflation bone density and reduce fractures, as well as to improve cardiovascular function. Vitamin K is given by injection to newborns to prevent bleeding due to vitamin K deficiency.

Let’s get to know more about the products we have listed. 

Bronson Vitamin K2 + D3:

Bronson Vitamin K2 + D3

Why We Picked It: Develop strong bones and a healthy heart, Removes calcium from the arterial mucosa, Prevent calcification of coronary arteries.

Bronson Vitamin K2 + D3 afford the appropriate amount of required vitamin to maximize its benefits for the bones and the heart. Vitamin D (especially D3, the form of vitamin D that is obtained from the sun) is essential to properly absorb calcium that we all know is as important as we get older. Most people start taking vitamin D3 after experiencing signs of deficiency. As we know, D3 should not be taken alone. While vitamin D provides calcium absorption, vitamin K2 (specifically in the form of MK-7, the most bioavailable form) directs it to areas of your body such as bones, so it can be used wisely Without K2, calcium absorbed can settle in the arteries, where it can cause calcification or other problems.


  • Multivitamin supplements
  • Capsule form
  • Suitable for vegetarians
  • GMO-free, gluten-free
  • Take once a day with food
  • Vitamin D3 120 mcg
  • Vitamin K2 90 mcg

Who Makes It?

The pioneers of the Bronson vitamins were a group of pharmacists who saw the benefits of vitamins and mineral supplements directly from their patients. Bronson vitamins have been constantly mentioned by the best health professionals since our inception in 1960. This company based in the USA. It has a proven track record of providing the purest and highest quality vitamins backed by science. Rely on Bronson to provide the best natural health products for you and your family.


  • Develop strong bones and a healthy heart
  • Removes calcium from the arterial mucosa
  • Prevent calcification of coronary arteries
  • One year satisfaction guarantee
  • GMO-free, gluten-free and soy-free


  • Causes dizziness
  • Headache
  • It is not for a weakened cardiovascular system

Life Extension with Super K + K2 Complex:

Life Extension with Super K + K2 Complex

Why We Picked It: Essential nutrient for bone and vascular health, Maintain calcium balance in arteries.

Life Extension Super K is a vitamin K supplement in a soft gel that provides a mixture of vitamins K1 and K2. This fat-soluble vitamin K source is digested more easily due to the addition of extra virgin olive oil present in the capsule, and the addition of vitamin C is compatible with the immune system; It also promotes arterial health and strong bones.


  • Advanced K2 complex
  • Vitamin K1 (as phytonadione) 1500mcg
  • Vitamin K2 (as menaquinone-4) 1000 mcg
  • Vitamin K2 (in the form of menaquinone all-trans 7) 100 mcg
  • Vitamin C 10 mg
  • Soft gel capsules
  • Includes the three types of vitamin K that are commonly found in green vegetables, cheeses and meats.

Who Makes It?

Life Extension is a well-known health and wellness company that has provided services to consumers for more than 35 years. They use the raw ingredients of the highest quality in their more than 350 products. To remain innovative, the brand has also contributed to years of scientific research. It is one of the most effective vitamin K products on the market that complements both forms of vitamin K. The product is manufactured by a reputable brand that offers a satisfaction guarantee.


  • Supports vascular health
  • Maintain calcium balance in arteries
  • Essential nutrient for bone and vascular health
  • Promotes bone health
  • Applicable for unisex


  • May cause a bleeding disorder

Now Foods Vitamin K-2:

Now Foods Vitamin K-2

Why We Picked It: Support adequate calcium metabolism in vascular structures, Boosts the immune system.

Now Foods Vitamin K-2 is an economical vitamin K supplement fortified with vitamin C and alfalfa. Vitamin C helps support the immune system, while alfalfa provides a natural source of vitamin K4. Alfalfa also improves cardiovascular health. This product provides bioavailable vitamin K2, the form of vitamin K that is probably found in meats and produced by intestinal bacteria. It is vegetarian, vegan, kosher and GMO-free. In particular, it is a high-quality option for those interested in vitamin K supplementation.


  • 100mcg of vitamin K2
  • 2 mg of vitamin C
  • 300 mg alfalfa powder
  • Biologically active
  • Vegetarian or vegan
  • Kosher and without GMO
  • Packaged in the United States
  • 100 capsules per bottle

Who Makes It?

Now Foods is a brand of natural supplements founded in 1968. They strive to allow their customers to live healthy lives. Their products are of high quality and often more affordable than their competitors.


  • Support adequate calcium metabolism in vascular structures
  • No dairy products or eggs
  • Without sugar and vegan
  • Low doses of vitamin K2 supplement


  • Decreased appetite
  • Reduction of movement or activity
  • Difficulty breathing

Solgar Natural Vitamin K2:

Solgar Natural Vitamin K2

Why We Picked It: Suitable for Lacto-vegetarians, Supports coagulation, Helps maintain strong bones.

Solgar Natural Vitamin K2 is an excellent vitamin K supplement of natural origin enriched with calcium. If you are looking for a vitamin K supplement to maintain healthy bones, this is an excellent option. This supplement does not contain artificial flavours, sweeteners, preservatives or dyes, it is a quality product.


  • 100mcg of vitamin K2
  • 115 mg of calcium
  • Gluten-free, wheat and yeast
  • Contains milk and soy
  • One vegetable capsule per day
  • Of natural origin
  • Suitable for Lacto-vegetarians
  • As a dietary supplement for adults

Who Makes It?

Since 1947, Solgar has been a well-known brand in the supplement industry. Their products adhere to rigorous quality assurance standards and can be sure that they are free of harmful ingredients. Is a good product; however, it is expensive and includes milk and soy. It is enriched with calcium, which makes it a good product for those who want an additional calcium intake.


  • Made by intestinal microflora
  • GMO-free and gluten-free
  • Of natural origin
  • Suitable for Lacto-vegetarians
  • Supports coagulation
  • Helps maintain strong bones


  • Warning in case of pregnancy, lactation, illness or use of medications

Solaray Vitamin K:

Solaray Vitamin K

Why We Picked It: Healthy blood clotting, Reduces the frequency of nosebleeds 

Solaray Vitamin K is a supplement derived from phylloquinone; a form of vitamin K1 derived from green plants. It is extremely affordable and comes as a tablet. This supplement also has a rapid absorption quality. If you are looking for a successful vitamin K product at an affordable price, this may be the supplement for you.


  • 100 mcg of vitamin K1 (in the form of phylloquinone)
  • Tablet form
  • Natural
  • Without vitamin K2
  • Help in normal and healthy blood clotting and support bone structure
  • It is a key factor in the synthesis of proteins in the body

Who Makes It?

Solaray is the best-known nutraceutical brand that was founded in Utah in 1973. Its products are of high quality, reasonable and natural prices. They offer a wide variety of products ranging from amino acids, vitamins and minerals to herbs and plant extracts. If you are looking for a solid and affordable option, this would be an ideal candidate. This product provides vitamin K1 in the form of phylloquinone; found naturally in green plants. However, it does not incorporate vitamin K2 and includes unnecessary fillers.


  • Helps support healthy protein synthesis
  • Support strong bones
  • Vitamin K1 can be converted in the body to vitamin K2 MK-4 when levels are low
  • Healthy blood clotting
  • Reduces the frequency of nosebleeds


  • Not very useful for bruising
  • Small tablets

Natural Vitamin K2 MK-7:

Natural Vitamin K2 MK-7

Why We Picked It: Make soft tissue elasticity, Helps maintain calcium metabolism to maintain healthy bones.

Doctor’s Best Natural Vitamin K2 MK-7 is a vitamin K2 supplement that comes in a vegetarian capsule. It is mediated to support bone health, soft tissue elasticity and adequate calcium metabolism, taken once a day. These capsules also do not soften vitamin K2 in high-quality oil, so the bioavailability of vitamin K2 may be sufficient.


  • 45mcg of vitamin K2 MK-7
  • GMO-free, gluten free and soy-free
  • Vegan
  • Supports bone health and soft tissue elasticity
  • Provides optimal levels of vitamin K to the bones and soft tissues
  • Supports calcium metabolism to maintain healthy bones

Who Makes It:

Doctor’s Best Vitamins is a widely known brand of nutritional supplements founded by doctors that offers more than 200 products. They use highly requested brand ingredients and their products are produced in GMP certified facilities. This vitamin K product provides an affordable source of additional vitamin K2. By using vitamin K2 in the form of MK7, it is bioavailable and vegan, making it a good source of vitamin K for almost everyone.


  • Helps improve bone health
  • Make soft tissue elasticity
  • Helps maintain calcium metabolism to maintain healthy bones
  • GMO, gluten, vegan and soy-free
  • Helps improve executive functions


  • The dose is quite mild

Nature Made Vitamin K2 Soft gel:

Nature Made Vitamin K2 Soft gel

Why We Picked It: Prevent osteoporosis, established role in blood clotting processes. 

Nature Made Vitamin K2 capsule is a vitamin K2 MK7 supplement that is delivered in a vegetable capsule. It is made in the United States and is also free of synthetic colours, artificial flavours, preservatives, yeast, starch and gluten. Nature Made Vitamin K2 is naturally derived from the same microorganism found in natto-based foods. Although vitamin K is traditionally known for its established role in blood clotting processes, emerging science has also linked vitamin K2 with the stimulation of bone mineralization processes when taken with calcium. There, several key proteins involved in bone formation need vitamin K for their actions.


  • 100 mcg of vitamin K2 (as MK7)
  • Vegetable capsule
  • Yeast, starch and gluten-free
  • Least amount
  • Contains soy
  • Helps maintain healthy bones
  • Adults take one capsule daily with water and a meal

Who Makes It?

The best-known Nature Made is a brand of food supplements committed to health and wellness for more than 20 years. Their products are developed using a scientific approach and are evaluated through third-party verifications. Nature K’s vitamin K2 capsule is a good source of vitamin K, however, it has some drawbacks. It is available in smaller quantities, contains soy and other unnecessary ingredients, and is a bit more expensive.


  • Prevent osteoporosis
  • The capsules are small, very easy to swallow
  • Helps maintain healthy bones


  • Less amount
  • More expensive

Zhou Nutrition K2 + D3:

Zhou Nutrition K2 + D3

Why We Picked It: Support strong bones, Strong immune system.

Zhou Nutrition K2 with D3 is a unique supplement that combines vitamin K2 (like MK7) with vitamin D3. This supplement provides the two useful nutrients in one. Zhou Nutrition uses the symbiosis between vitamin D3 and vitamin K2 for optimal bone and heart health. This supplement provides 5000 IU of vitamin D3, which should be sufficient even for dark-skinned people living in northern climates, as well as 90 mcg of vitamin K2. To ensure an adequate supply of vitamin K, it is an excellent option. In addition to rice flour and cellulose to make the capsule, there are no additional ingredients.


  • 90 mcg of vitamin K2 (as MK7)
  • 5000 IU of vitamin D3
  • Capsule form
  • Without the most common allergens
  • Small and easy to swallow
  • Adequate calcium absorption
  • Immune support
  • Strong bones

Who Makes It?

Zhou Nutrition is a rapidly developing company in the world of electronic commerce. They currently have several best-selling supplements and follow strict safety, high quality and purity standards. It is a good option if you are looking for a combination of K2 and D3. It is more expensive but, nevertheless, it is an excellent product.


  • Support strong bones
  • A healthy cardiovascular system
  • Strong immune system


  • May cause chest pain
  • Arterial hypertension

365 Everyday Value Vitamin K:

365 Everyday Value Vitamin K

Why We Picked It: Help stop bleeding and build healthy bones. 

365 Everyday Value Vitamin K is a basic vitamin K supplement. The dose of 125 mcg is not very high and, in addition, the capsule contains the vitamin in powder form, not dissolved in fat. The rest of the ingredients are somewhat swollen with preservatives, so most people will be better served with a vitamin K supplement.


  • Contains 100 vegan tablets
  • Vitamin K (as phytonadione) 120 mcg
  • Helps build healthy bones
  • Vegan certificate
  • Natural and organic
  • Allergen warnings

Who Makes It?

Whole Foods Market is a United States-based company. Their standards and quality allow them to store pantries, refrigerators and freezers with the best natural and organic 365 Everyday Value products every day. Offering exceptional daily values, these products are formulated to meet all the strict quality standards of the Whole Foods market.


  • Help stop bleeding
  • Improves bone health.
  • The bruises disappeared quickly
  • Vegan tablets


  • None

Garden of Life Vitamin Code Raw K- Complex:

Garden of Life Vitamin Code Raw K- Complex

Why We Picked It: Healthy blood clotting and coagulation, Vigorous digestion with live probiotics.

Garden of Life Vitamin K is a raw K complex that is delivered in a vegetarian capsule that incorporates vitamin K1 and two forms of vitamin K2 (MK4 and MK7). It also includes cold-pressed flaxseed oil rich in omega that provides a source of fat to improve solubility, a mineral mixture of fruits and vegetables, a mixture of trace elements and a mixture of raw probiotics. This complex natural vitamin K supplement is gently absorbed and delivered in a vegetarian capsule. It provides a complete formula that promotes good digestion and absorption. 


  • 120mcg of vitamin K
  • 300 mg of flaxseed oil
  • 130 mg of a mixture of raw organic fruits and vegetables
  • 65 mg trace element mixture
  • 5 mg of a raw probiotic mixture
  • Gluten-free, GMO and vegan free
  • One daily capsule is taken with food
  • Prevent nosebleeds

Who Makes It?

Garden of Life is a good brand of nutritional supplements that use raw foods to develop healthy products that support comprehensive health. Their products are made with responsible and transparent ingredients. Garden of Life specializes in the manufacture of supplements that contain vitamins and minerals along with other phytonutrients found in the plants they come from.


  • Healthy blood clotting and coagulation
  • Vigorous digestion with live probiotics
  • Strong bones
  • A healthy heart


  • May produce an allergic reaction

Guideline To Pick A Good Vitamin K Supplement

As there are so many different products, it can often be difficult to choose the “best” supplement for you. Catch a glimpse at these factors, which you should consider when making your selection:

Ingredients: Obviously, ingredients are the most important factor to consider in a supplement. In general, vitamin K supplements are available and are often combined with other vitamins and nutrients, such as calcium, magnesium or vitamin D. It is also commonly found in most multivitamins. Vitamin K supplements generally use synthetic forms of vitamin K1 or vitamin K2. Studies show that these are well absorbed by the body, but MK-7, the synthetic form of vitamin K2, has a longer half-life and remains active in the body for longer. If you decide to take a vitamin K supplement, the amount you need may vary based on your age and sex.

Brand quality: in this guide, we have only chosen products from companies or brands that are tested and of high quality. However, if you choose to buy elsewhere, be sure to investigate the company you are buying from.

Value: keep in mind that a lower price does not necessarily mean a better deal since the portion size may be smaller or the quality of the product may be lower. Ideally, you will want to find a perfect balance between price, quality and overall value. The price should not be your first priority, but the cost of the product must be taken into account.

Taste: If you buy a powdered version instead of a pill, the flavour you choose is obviously important. Also, consider mixing with other flavours.

If you consider these factors, you will get an excellent score on a great product. To help you choose, we have researched and tested for you.

Transparency: avoid exclusive mixtures in supplements. All ingredients and doses should be marked in advance, clearly and honestly. Any manufacturer that does not want to tell you its ingredients or dosage for any reason probably has something to hide. This is usually due to ineffective ingredients or ineffective doses.

Declarations on the label: always verify the supplement data, where the ingredients must be listed by law. Read the precautions and follow the instructions when using them. Try to see beyond the hype on the label too. The FDA does not regulate supplements but states that claims must be proven and that supplements cannot claim that they cure, treat, prevent or diagnose the disease.

Warnings and precautions: Although you may be concerned if you see warnings and precautions, it is good for a manufacturer to add them, as this shows that they have actually researched their own product. The warnings and precautions to take into account are contraindications for different medications.

Marketing: You should be able to see beyond what you are selling, without immediately believing in unrealistic claims. Look for words like “improve”, “promote” and “support” that does not point to exaggerated claims. 

Recommended Dose

The minimum recommended intake of vitamin K for optimal health is 120 mcg per day for men and 90 mcg per day for women.

This is similar to what you will find in low-dose vitamin K supplements, but many clinical trials use doses close to 200 mcg per day. Some have increased, to 500 mcg per day, with some success.

To ensure heart health and continuous bone strength, 90 to 125 mcg should be adequate, but if you are looking to correct a deficiency or actively increase bone strength or improve heart health where it already is, a higher dose may be necessary. The study of heart health in the Netherlands, for example, used 180 mcg per day.

Frequently Asked Questions About Vitamin K Supplement

Q: What is vitamin K?

A: Vitamin K is a group of chemically related fat-soluble compounds (naphthoquinones). This group comprises vitamins K, K1, K2 and K3. Vitamin K1 (phytonadione) is the natural form of vitamin K; It is found in plants and is the main source of vitamin K that humans get from various foods.

Q: Why is vitamin K important for the human body?

A: Vitamin K is an essential nutrient necessary to respond to lesions: it regulates normal blood clotting. In addition, by helping to transport calcium throughout the body, vitamin K can also be useful for bone health: it can reduce bone loss and decrease the risk of bone fractures. It can also help prevent calcification of arteries and other soft tissues.

Q: What are the signs of vitamin K deficiency?

A: Although rare, vitamin K deficiency can lead to defective blood clotting, increased bleeding and osteopenia. Symptoms include easy bruising, gastrointestinal bleeding, excessive menstrual bleeding and blood in the urine. The people most at risk of vitamin K deficiency are people with chronic malnutrition, people with alcohol dependence and people with health problems that limit the absorption of vitamins in the diet.

Q: What foods are rich in vitamin K?

A: Vitamin K is abundant in green tea, green leafy vegetables, such as chard, kale, parsley and spinach, broccoli and cauliflower, Brussels sprouts, liver, soybean oil and wheat bran. Fermented dairy products, such as yoghurt, cheese and fermented soybeans, such as miso and natto, provide K2, which is particularly useful for increasing bone density and reducing the risk of fractures. People with osteoporosis or osteopenia should consider supplementation of 50 to 100 mcg (micrograms) of K2 and eat foods rich in vitamin K.

Q: Is there any risk associated with too much vitamin K?

A: Yes, there are risks associated with too much vitamin K. Although there is no known toxicity associated with vitamin K, high doses can cause opacity or tingle in the extremities.

Q: What about vitamin K supplements?

A: Most people consume a large amount of vitamin K in their diet, so supplements are generally not necessary. The water-soluble forms of the vitamin are manufactured and can be beneficial for people. Multivitamin supplements are accessible with or without vitamin K. If you are taking an anticoagulant, you should avoid supplements that contain vitamin K.

Q: Is there any other special consideration?

A: People who take prescription anticoagulants, which intentionally interfere with the role of vitamin K, should closely monitor the intake of foods containing vitamin K and should never take a vitamin K supplement.

Vitamin K supplementation during pregnancy (beyond normal food intake) may increase the risk of jaundice in newborns. Vitamin K ingested by nursing mothers is generally considered safe.

High doses of aspirin and quinine may increase the need for vitamin K; Antacids can decrease the absorption of vitamin K and vitamin K may decrease the anticoagulant effects of various herbs, such as alfalfa, American ginseng, anise, celery, chamomile, horse chestnut and Red clover.

Benefits Of Vitamin K Supplements

  • They can fight cancer
  • Build strong bones
  • Ensure healthy blood clotting
  • Promote heart health
  • Improves insulin sensitivity
  • Improves brain function

Final Thoughts

In general, if you want to have a happy and healthy life in which the quality of life is maintained until old age, you should focus on cardiovascular health and strong bones.

One way to do this is to take vitamin K supplements. Each time you take one of the ten mentioned above, you are likely to get positive results, which will have a positive impact on every element of your life.

Vitamin K plays a crucial role in maintaining strong and healthy bones, especially when combined with vitamin D. It is also effective in reducing arterial stiffness and improving your cardiovascular health.

The most effective form of vitamin K seems to be the MK-7 form since this natural variant maintains your blood levels of vitamin K for longer.

The optimal dose of vitamin K for these benefits is between 90 and 200 mcg per day for most people, although no known risks have been associated with higher doses.

The only side effects to consider are possible interactions with anticoagulants, such as warfarin.

Although its applications are quite limited, vitamin K is a safe, effective and easy way to improve bone and heart health.


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