स्वास्थ्य सम्बन्धी सम्पूर्ण जानकारी

جميع المعلومات المتعلقة بالصحة

Lahat ng impormasyong may kaugnayan sa kalusugan

स्वास्थ्य संबंधी सारी जानकारी

Semua maklumat berkaitan kesihatan

ကျန်းမာရေးဆိုင်ရာ အချက်အလက်အားလုံး


Dhammaan macluumaadka la xiriira caafimaadka

स्वास्थ्यसम्बद्धाः सर्वाणि सूचनानि

Alle gezondheidsgerelateerde informative

Tota la informació relacionada amb la salut

ሁሉም ከጤና ጋር የተያያዙ መረጃዎች


صحت سے متعلق تمام معلومات

Mọi thông tin liên quan đến sức khỏe

The Health Thread Logo

The Health Thread

THT store

Listen to this audio

The Health Thread Favicon

Written By THT Editorial Team

Reviewed by Liza Nagarkoti , BSc Nursing, MA(Nutrition), Project Officer (Health) LWF Nepal

Vitamin K is a fat-soluble vitamin that plays a crucial role in blood clotting. In this article, we will discuss the sources, benefits, and role of vitamin K in blood clotting, as well as recent research on its impact on other aspects of health.

Sources of Vitamin K

Vitamin K is found in various food sources, including leafy green vegetables such as spinach and kale, as well as broccoli, brussels sprouts, and some vegetable oils. Fermented foods such as natto and sauerkraut are also good sources of vitamin K.

Benefits and Role in Blood Clotting

Vitamin K is essential for blood clotting as it helps activate proteins that are involved in the process. Without enough vitamin K, blood clotting can be impaired, leading to an increased risk of bleeding and hemorrhage.

Recent Research and Findings

Recent research has shown that vitamin K may have other health benefits beyond blood clotting. Some studies suggest that vitamin K may improve bone health and reduce the risk of fractures, especially in older adults. Additionally, some research suggests that vitamin K may have anti-inflammatory properties and may reduce the risk of chronic diseases such as cardiovascular disease and type 2 diabetes.

One study published in the Journal of Bone and Mineral Research found that vitamin K supplementation improved bone mineral density and reduced the risk of fractures in postmenopausal women with osteoporosis. Another study published in the American Journal of Clinical Nutrition found that vitamin K supplementation reduced the risk of developing type 2 diabetes in older adults.

Deficiency and Symptoms

Vitamin K deficiency is rare in healthy individuals, as the vitamin is found in many foods and is also produced by bacteria in the gut. However, certain medical conditions or medications can interfere with vitamin K absorption, leading to a deficiency. Symptoms of vitamin K deficiency include increased bleeding and bruising, nosebleeds, and blood in the urine or stool.


Vitamin K is an essential nutrient that plays a critical role in blood clotting. Consuming a diet rich in vitamin K from various food sources is essential to maintain optimal health. Further research is needed to confirm the potential health benefits of vitamin K beyond blood clotting and determine the optimal intake for these benefits.


  • National Institutes of Health. Vitamin K. https://ods.od.nih.gov/factsheets/VitaminK-HealthProfessional/. Accessed May 9, 2023.
  • Cheung AM, Tile L, Lee Y, et al. Vitamin K supplementation in postmenopausal women with osteopenia (ECKO Trial): a randomized controlled trial. J Bone Miner Res. 2008;23(4):509-519.
  • Beulens JWJ, van der A DL, Grobbee DE, et al. Dietary phylloquinone and menaquinones intakes and risk of type 2 diabetes. Diabetes Care. 2010;33(7):1699-1705.