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Vitamin K Boosts Bone Benefits of Calcium and Vitamin D

Another new study on the benefits of vitamin K. Nothing new here, but just more confirmation. This study investigated the effects of dairy enriched with calcium (800 mg/day) and vitamin D3 (400 IU/day) with or without the addition of 100 mcg/day of either phylloquinone (vitamin K1) or menaquinone-7 (MK-7, a specific form of vitamin K2).

While results showed that after 12 months of supplementation all women in the enriched-dairy groups (vs. the control group) had increased bone mineral density (BMD), only women consuming the vitamin K-enriched products had significant increases in BMD in the lower back.

The researchers conclude, “The present study revealed more favorable changes in bone metabolism and bone mass indices for the two vitamin K-supplemented groups, mainly reflected in the suppression of serum levels of bone remodeling indices and in the more positive changes in lumbar spine BMD for these two study groups.”

Here are some other related posts:

Source: Changes in Parameters of Bone Metabolism in Postmenopausal Women Following a 12-Month Intervention Period Using Dairy Products Enriched with Calcium, Vitamin D, and Phylloquinone (Vitamin K1) or Menaquinone-7 (Vitamin K2): The Postmenopausal Health Study II

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  1. Vitamin K2 is a fat soluble vitamin K analouge that plays a role in bone metabolism. Vitamin K2 is also known as menaquinone. Vitamin K2 can exist in many forms in natural, but the two most common are menaquinone 4 (MK4) and and menaquinone 7 MK7 form.

    Vitamin K2 as MK4 is synthesized by animal tissues and is found in eggs, meat and dairy products. Vitamin K2 as MK7 is synthesised by bacterial fermentation and MK7 is found in fermented foods such as natto.

    MK4 Vitamin K2 has been shown specifically to prevent bone lose and increased fracture risk from corticosteriod use, anorexia and general disuse (leading to weaker, less dense bone tissue). Vitamin K2 plays a key role in activating certain proteins that control calcium metabolism within the body and particularly mineraliation of bone.

  2. Oh, thank you for posting this benefit of vitamin K. Didn't know about this, actually.


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