The Recommended Dosage of Vitamin K2 for Children

Vitamin K2 is an essential nutrient that plays a crucial role in maintaining overall health and well-being. While it is commonly known for its role in blood clotting, vitamin K2 also has many other important functions in the body, especially for children. As a parent, you may be wondering what the recommended dosage of vitamin K2 is for your child. In this article, we will explore the importance of vitamin K2 for children and provide expert recommendations on the appropriate dosage.

The Importance of Vitamin K2 for Children

Vitamin K2 is a fat-soluble vitamin that is naturally produced by bacteria in the gut.

It is also found in certain foods, such as leafy greens, dairy products, and fermented foods. Vitamin K2 works together with vitamin D to regulate calcium levels in the body, which is essential for bone health and growth. For children, vitamin K2 is particularly important during their growing years as it helps to build strong bones and teeth. It also plays a role in preventing tooth decay and cavities. Additionally, vitamin K2 has been linked to improved cardiovascular health and a reduced risk of chronic diseases later in life.

The Recommended Dosage of Vitamin K2 for Children

The recommended daily intake of vitamin K2 varies depending on age and gender.

According to the National Institutes of Health (NIH), the recommended daily intake for children aged 1-3 years is 30 micrograms (mcg), 4-8 years is 55 mcg, and 9-13 years is 60 mcg. For teenagers aged 14-18 years, the recommended daily intake increases to 75 mcg for boys and 60 mcg for girls. It is important to note that these recommendations are for healthy children with no underlying health conditions. If your child has a medical condition or is taking any medications, it is best to consult with a healthcare professional before giving them any supplements.

Choosing the Right Vitamin K2 Supplement for Children

While vitamin K2 can be obtained through diet, it may be challenging for children to consume enough of the foods that contain it. In such cases, a vitamin K2 supplement may be necessary to ensure your child is getting enough of this essential nutrient. When choosing a vitamin K2 supplement for your child, it is important to look for one that is specifically formulated for children and contains the recommended daily intake of vitamin K2. It is also crucial to choose a reputable brand that uses high-quality ingredients and has been tested for safety and efficacy. Additionally, it is recommended to choose a supplement that contains vitamin D as well, as these two vitamins work together to support bone health and overall well-being.

The Risks of Vitamin K2 Overdose

While vitamin K2 is generally safe for children, it is possible to overdose on this nutrient.

However, the risk of overdose from food sources is very low. The main concern would be from taking high doses of vitamin K2 supplements. Excessive intake of vitamin K2 can lead to an increased risk of blood clots and interfere with certain medications, such as blood thinners. Therefore, it is crucial to follow the recommended dosage and consult with a healthcare professional before giving your child any supplements.

The Bottom Line

Vitamin K2 is an essential nutrient for children that plays a vital role in their overall health and well-being. The recommended daily intake varies depending on age and gender, and it is important to choose a reputable supplement specifically formulated for children.

As with any supplement, it is crucial to follow the recommended dosage and consult with a healthcare professional if your child has any underlying health conditions or is taking any medications.


1. National Institutes of Health. (2021). Vitamin K Fact Sheet for Health Professionals. Retrieved from Health Publishing.

(2019). Vitamin K2: The missing nutrient? Retrieved from Healthline. (2020). Vitamin K2: Everything You Need to Know.

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Minnie Ocenasek
Minnie Ocenasek

Professional explorer. Typical internet scholar. Twitter nerd. Extreme food trailblazer. Hardcore web specialist. General travel practitioner.

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