Top & Best Vitamin K2 Review 2022 – How to Select Ultimate Buyer’s Guide

Top & Best Vitamin K2: How to choose the best one in 2022

Welcome to Today we are going to talk about vitamin K2, one of the three vitamins that make up the K complex, and the one that has greater efficiency, ease of absorption and time of action in the body.

Vitamin K2 plays important roles: it acts in maintaining bone and cardiovascular health, sexual health of men and women, performing physical activities and controlling diabetes and obesity.

It is also known as anti-aging pill, as it prevents the absorption of calcium in the skin, preventing wrinkles. Are you curious to know more about vitamin K2? Then continue reading this article.

First, the most important

  • The vitamin K2 supplement can use two of the four variations of this vitamin as a source: MK4 (synthetic) and MK7 (natural). The concentration ranges from 65 to 120 mcg (MK7) or from 100 to 1300 mcg (MK4).
  • The main function of vitamin K2 is to direct the absorption of calcium to bones and teeth, preventing calcification in inappropriate places such as arteries, joints and organs.
  • Vitamin K2 supplementation can be combined with other supplements such as calcium, magnesium and vitamin D3.

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The best vitamin K2 supplements

The vitamin K2 supplement has excellent cost-benefit and you will find a wide variety of national and imported brands that manufacture it. Want to know what the best options are? Check out the ranking below.

  • Vitamin K2 Fitoactive
  • Vitamin K2 WVegan
  • Now Foods Vitamin K2
  • Vitamin K2 Vital Natus



Buying Guide

If there is a vitamin you need to know more about, it goes by the name of vitamin K2. This substance only got the attention it deserved a few years ago, when scientists discovered its numerous benefits.

Want to know what these benefits are? The natural sources of this vitamin? The importance of supplementation and the recommended daily dose? Then continue reading this Buying Guide.


What is vitamin K2?

There are three types of vitamins in the K complex:

    • Phytomenadione, also called K1, which can be found in dark green leafy vegetables.
    • Menaquinone, known as K2, which is present in fermented foods.
    • Menadione, vitamin K3, produced in the laboratory.


Among the three types, vitamin K2 stands out for three reasons: it is completely absorbed by the body (bioavailable), acts for a longer time in the body (bioactive) and has numerous benefits.

Vitamin K2 is produced naturally by healthy intestinal bacteria. However, in addition to low absorption, production falls over the years, causing deficiency in the body.

So it is essential to consume foods that are sources of the vitamin (some types of cheese, meat, eggs and fermented foods) and include a supplement.

What are the benefits of vitamin K2?

This vitamin started to attract the attention of scientists, when it was discovered that vitamin K2 potentiates the effects of vitamin D3 (when they are used together).

Among the effects are: production of new bone cells, strengthening of bones, control of calcium levels, increase in bone mass and density. Such benefits help to prevent osteoporosis and bone fractures.

Vitamin K2 also prevents calcium from being directed to inappropriate areas of the body such as arteries, joints, kidneys, eyes and gallbladder. When they are absorbed in these regions they can cause atherosclerosis, arthrosis, kidney stones, cataracts and vesicular stones, respectively.



Vitamin K2 is important for producing the osteocalcin (GLA) protein that is part of the bone structure and is responsible for preventing the accumulation of minerals in the veins and arteries.

Another function is to prevent calcium from mineralizing in the arteries that lead to the heart, which can cause hardening of the heart valves, clogging of the arteries and a possible infarction.

But vitamin K2 has other benefits besides those mentioned above, such as helping blood clotting, activating the vascular system, inhibiting the development of varicose veins, preventing infectious diseases and brain problems.

The vitamin also helps to rule out some types of cancer, as it suppresses the genes that can develop these diseases and strengthens the genes that synthesize healthy cells and fight cancer.

Prevention of cardiovascular diseases

Vitamin K2 also helps to strengthen the cardiovascular system, inhibiting the development of cardiovascular diseases, decreasing the risk of stroke and stroke.

    • Promotes blood clotting
    • Strengthens veins and arteries
    • Strengthens the heart muscle
    • Prevents vascular calcification


Improves physical performance

Vitamin K2 supplementation can also improve your performance in sports, as it increases the body’s ability to use the energy produced by the body itself to move.

This is because vitamin K2 acts on the pancreas and promotes the production of insulin, which among other effects, increases energy and promotes cell nutrition.



Prevention of obesity and diabetes

Vitamin K2 prevents and prevents the advance of type 2 diabetes, as it increases insulin sensitivity, which helps to stabilize blood glucose levels, and prevents the accumulation of visceral fat.

These benefits also prevent the development of an increasingly common metabolic problem in our society: obesity.

Improves sexual health

Vitamin K2 also helps improve sexual health by optimizing the function of testosterone, which causes a drop in estrogen levels, increasing male fertility.

Another benefit is that the supplement increases sperm production. In women with Polycystic Ovary Syndrome, vitamin K2 helps to regulate testosterone levels.

Another benefit is the improvement in blood supply to the genitals of men and women.



Reduces inflammation

When there is a low concentration of vitamin K in the body and a high concentration of cytokines, the likelihood of developing inflammation is greatly increased. Vitamin K2 reduces the rates of cytokine in the body.

This benefit makes the vitamin K2 supplement ideal for people with inflammatory diseases such as Lupus, Crohn’s disease, diabetes, among others.

Improves teeth health

As with bones, vitamin K2 helps to strengthen teeth. This is because the vitamin facilitates the absorption of calcium by the teeth and stimulates the dentin, which helps to structure the teeth and make them healthier.


Stimulates mitochondrial function

Vitamin K2 helps to stimulate mitochondrial function, as it assists in the transport of electrons to mitochondria, which accelerates mitochondrial function, generating more energy.

Because of this benefit, the possibility of using the vitamin K2 supplement to treat liver problems and degenerative diseases in the central nervous system is already being studied.


  • The vitamin K2 supplement can be found in two variations: MK4 and MK7
  • Dosage varies: 65, 100 or 120 mcg per capsule (MK7)
  • Supplement in capsules offers practicality on a daily basis
  • It is an affordable product


  • Supplements derived from MK4 need to have a much higher concentration to have an effect
  • The supplement is only available in capsules
  • Vitamin A and E supplements hinder vitamin K2 absorption

Who should take vitamin K2?

Vitamin K2 supplementation is indicated for:

    • People with intestinal diseases (vitamin K2 is produced, synthesized and absorbed by the intestine).
    • People who have had bowel reduction surgery.
    • Who has liver diseases like cirrhosis (vitamin K2 is deposited in the liver before being used by the body)
    • People with chronic diarrhea (the condition changes the intestinal flora, causes less production of nutrients and decreases the absorption of vitamins).
    • Who is doing antibiotic treatments (the medicine influences the intestinal flora, affecting the production of the vitamin).


Who should not take vitamin K2?

Vitamin K2 supplementation is contraindicated for pregnant and lactating women, who have clotting above normal and people who have already had cardiovascular problems such as stroke and cardiac arrest.



Did you know that people who take anticoagulants can take vitamin K2 supplementation, but should stay away from vitamin K1?


What is the recommended daily dose of vitamin K2?

The recommended dose of vitamin K2 is 65 to 120 mcg per day. The supplement should be consumed, preferably, after meals and can be taken with other supplements.

Tip: Vitamin A and E supplements reduce vitamin K2 absorption, so avoid mixing these supplements.



What are the risks of vitamin K2 deficiency?

Vitamin K2 deficiency does a lot of harm to the body, for the following reasons: you can develop blood clotting problems, have loss of bone quality and the possibility of calcium being stored in the wrong places on the body. Other evils are:

    • Coronary artery occlusion
    • Hardening of the heart valves
    • Joint cartilage problems


The people who are most at risk of having vitamin K2 deficiency in the body are those who have undergone bariatric surgery and / or who use drugs that hinder fat absorption. Those who consume processed foods are also susceptible.



How much?

You can find the vitamin K2 supplement in packs of 60, 90 or 100 capsules. Prices range from R $ 20 to R $ 80 (60 capsules), around R $ 75 (90 capsules) and up to R $ 190 (100 capsules).

Where to buy?

You can find the vitamin K2 supplement in pharmacies like Ultrafarma, supplement stores and natural products like Mundo Verde and in handling pharmacies.

If you prefer, you can buy the product online. You can find some options in the manufacturers’ virtual stores and in department stores like Amazon and Mercado Livre.


Purchasing Criteria: Factors to compare the different models of vitamin K2

There are few differences between vitamin K2 supplements. But, although few, these distinctions can make all the difference in the effectiveness and durability of the product. When buying yours, review the following criteria:

  • MK4 or MK7?
  • Concentration
  • Bottle
  • Number of capsules

We will explain each of the items below.

MK4 or MK7?

When you are looking for a vitamin K2 supplement you will find many products with the indication MK7 and others with the indication MK4 on the label. This creates doubts in many people, so let’s explain what this information is about.

Vitamin K2 has four variations: MK4, MK7, MK8 and MK9. The difference between them is the length of the side chain, the longer the better the efficiency.

The two variations used in the composition of vitamin K2 supplements are MK4 and MK7, we explain the differences between them in the table below:

  MK4 MK7
Time remaining in the organism Shortly stays in the bloodstream About three days
Absorption Effective Fully absorbed by the body
Source Synthetic Natural
Concentration Between 100 and 1300 mcg From 65 to 120 mcg


You can find vitamin K2 supplements in the following concentrations: 65 mcg, 100 mcg and 120 mcg (MK7), or in higher doses, which reach 1300 mcg (MK4).

According to experts, the recommended daily dose is 120 mcg of vitamin K2 type MK7, which is the most effective, due to the ease of absorption and bioavailability (the time the substance remains in the body).


When buying a vitamin K2 supplement, it is essential that you look at the bottle of the product. Vitamin K2 is sensitive to light, so the bottle must be dark or at least opaque to prevent the capsules from contacting the light.


Number of capsules

Vitamin K2 supplement is sold in capsules. The recommended daily dose is always one capsule a day, either in the morning or during one of the main meals.

The amount of capsules per bottle varies between 60, 90 or 100 units. The vitamin K2 supplement can be purchased ready-made or you can have it handled (in this case, look for a reliable handling pharmacy).


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Which form of Vitamin K2 is best?

How much Vitamin K2 should I take daily?

Which is better K2 MK7 or MK4?

Is Vitamin K2 healthy?

What vegetables are high in Vitamin K2?

Does Vitamin K2 help clear arteries?

What are the side effects of Vitamin K2?

Does Vitamin K2 raise blood pressure?

Does Vitamin K2 thicken or thin the blood?

What foods are high in K2?

How much K2 should I take daily for osteoporosis?

Does taking vitamin d3 have side effects?

Does Vitamin K2 reverse osteoporosis?

Do you need vitamin K to absorb vitamin D?

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