What Is Vitamin K2?
Vitamin K2 is a form of vitamin K that is found in certain supplements and foods. It is an essential nutrient that plays a vital role in maintaining healthy bones, teeth, and cardiovascular function. Vitamin K2 is found in smaller amounts in animal-based foods such as cheese, eggs, and organ meats (1).
Vitamin K2 is involved in the process of calcium metabolism, helping to regulate the amount of calcium in the body and preventing it from accumulating in the wrong places such as the arteries. It also helps to
activate proteins that are involved in bone metabolism, contributing to the formation and maintenance of healthy bones.
How Much Vitamin K2 Should I Take?
It is important to get the right amount of vitamin K2 for optimal health. The recommended daily intake of vitamin K2 for adults is 120 micrograms for men and 90 micrograms for women. However, these recommendations may vary depending on your age, sex, and other factors such as pregnancy or
Vitamin D3 is a type of vitamin D that is found in supplements and certain foods. It is an essential nutrient that plays a vital role in maintaining healthy bones, teeth, and immune function (2).
Vitamin D3 is synthesized in the skin when it is exposed to sunlight. It can also be obtained through the diet, but it is found in very few foods. Some sources of vitamin D3 include egg yolk, fatty fish and fortified foods such as cereal and milk.
Vitamin D3 is an essential nutrient that plays a number of important roles in the body, including regulating calcium metabolism, activating bone metabolism proteins, supporting immune function,
reducing cancer risk, and improving insulin sensitivity (3). It is essential for maintaining good health and can be obtained through a balanced diet, sunlight exposure, and supplements.
The recommended daily intake of vitamin D3 for adults is 600-800 IU per day, depending on your age and other factors. It is generally safe to take vitamin D3 supplements, but its important to consult with
a healthcare professional before starting any supplement regimen.
Getting too much vitamin D3 can have harmful effects. It is best to get your nutrients from a balanced diet and spend time outside in the sun to help your body produce vitamin D3.
Vitamin D is a group of fat-soluble ketosteroids that play a vital role in calcium metabolism, bone health, and immune function. While Vitamin D3, also known as cholecalciferol, is a specific form of vitamin D that is found in certain foods and supplements. Other differences include:
Vitamin D is produced in both plants and animals
It appears in five different forms: vitamin D1, D2, D3, and D4.
it is not always advantageous for the body. For example, vitamin D2 is potentially hazardous to the
Vitamin D3 is produced exclusively in animals and can be found on their skin.
Vitamin D3 is beneficial to health.
If you take a vitamin D3 supplement without also getting enough vitamin K2, it can have negative effects on your health. This is because vitamin D3 creates a need for vitamin K2 in the body. To ensure you are
getting the right balance of these nutrients, it is recommended to take 45 micrograms of vitamin K2 for every 1000 IU of vitamin D3.
There are several ways to get D3 and K2 vitamins in your body:
Both D3 and K2 can be found in certain foods. D3 can be found in fatty fish, eggs, and fortified foods
such as milk, orange juice, and cereal. K2 can be found in fermented foods such as natto (a type of fermented soybean), cheese, and some meats.
D3 and K2 can also be taken as supplements in the form of tablets, capsules, or drops. It is important to speak with a healthcare provider before taking any supplements, as they can interact with certain medications and may not be suitable for every one (4).
3. Vitamin D-Rich And K2-Rich Products
Some products, such as fortified milk or yogurt, are rich in both D3 and K2. These can be a convenient way to increase your intake of these vitamins. You can also obtain vitamin D3 naturally from the sun.
At Nootropa, we offer a variety of supplements, including a popular combination of vitamin D3 and K2 called K2/D3 – Mood + Immune. This supplement is specially formulated to provide the recommended amounts of both vitamins and support overall health, including bone, heart, and immune function. If you are seeking a high-quality supplement that combines D3 and K2, consider trying our K2/D3 – Mood +
1. Capozzi A, Scambia G, Lello S. Calcium, vitamin D, vitamin K2, and magnesium supplementation and skeletal health. Maturitas. 2020 Oct 1;140:55-63.
2. Charoenngam N, Shirvani A, Holick MF. Vitamin D for skeletal and non-skeletal health: What we should know. Journal of clinical orthopaedics and trauma. 2019 Nov 1;10(6):1082-93.
3. Shalaby M, Sakoury MM, Harthi SM, Alshalawi FM, Alhajji MM, Alshaikh ZH, Aljaber AH. Vitamin D3 for the health and muscle functions of athletes. Systematic Reviews in Pharmacy. 2020 Sep
4. Becze A, Babalau Fuss VL, Scurtu DA, Tomoaia-Cotisel M, Mocanu A, Cadar O. Simultaneous Determination of Vitamins D3 (Calcitriol, Cholecalciferol) and K2 (Menaquinone-4 and Menaquinone-
7) in Dietary Supplements by UHPLC. Molecules. 2021 Nov 19;26(22):6982.