• Nature Made Vitamin K2 100 mcg
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Vitamin K2 100 mcg

Liquid Softgels

Vitamin K2 aids in bone mineralization to help support strong bones when taken with calcium.

  • Key proteins involved in bone formation require vitamin K for their actions
1 Daily
100 mcg

Product Details

There are two natural forms of vitamin K: vitamin K1 and vitamin K2. Vitamin K1 is derived from plants and is primarily found in the Western diet from green leafy vegetables such as spinach, kale, and broccoli. In contrast, vitamin K2 is animal-derived and is found in small amounts from foods such as liver, certain cheeses, and other fermented foods, including natto food, made from fermented soybeans. Vitamin K2 can also be made by intestinal bacteria. Nature Made Vitamin K2 is naturally derived from the same microorganism present in natto food.

Although vitamin K is traditionally known for its established role in blood clotting processes, emerging science has also linked vitamin K2 to supporting bone mineralization processes when taken with calcium. Several key proteins involved in bone formation require vitamin K for their actions.

Consider complimenting with one of Nature Made’s many calcium, vitamin D and magnesium products, since adequate levels of these nutrients are important to help support healthy bones.

Vitamin K2 is guaranteed to meet our high quality standards – it is made from carefully selected ingredients under strict manufacturing processes.

  • Colors Derived From Natural Sources - No Synthetic Dyes
  • No Artificial Flavors
  • No Preservatives
  • No Yeast or Starch
  • Gluten-free
Nature Made When to Take Your Vitamins Daily with Meal Icon

Dosage and Interactions

When to Take:

Suggested Use: Take one softgel daily, with a meal. For easier swallowing, take with water before and during ingestion.


Caution Statement:

If you are pregnant or nursing, taking medication, facing surgery, have bleeding problems or undergoing any other treatment which may affect the ability of blood to clot, consult your health care professional before taking this product.

Warning Statement:

Vitamin K should be used with caution when combined with:

  • Certain blood thinning medications (i.e. Coumadin/warfarin)

Given that no two people are alike, if you are taking any medications you should be aware that potential drug-nutrient interactions may occur and are encouraged to consult a health care professional before using this product. Combining certain prescription drugs and dietary supplements can lead to undesirable effects such as:

  • Diminished drug effectiveness
  • Reduced supplement effectiveness
  • Impaired drug and/or supplement absorption


Are there any important drug interactions that I need to be aware of?

Yes, there are certain blood thinning medications (e.g. Coumadin/warfarin) that work by decreasing the activity of vitamin K-dependent blood clotting pathways in the body, thereby extending the time that is needed for a blood clot to form. Therefore, to help ensure that your prescribed blood thinner medications work effectively, it is important to maintain a consistent vitamin K intake. A sudden, significant decrease or increase in your vitamin K intake from food or supplements could amplify or reduce the efficacy of your blood thinner medication, respectively. This drug nutrient interaction information should be communicated to you by your health care professional, with specific guidance on maintaining consistent dietary intake of vitamin K.


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