Vitamin K

Vitamin K is a nutrient that the body needs in small amounts to function and stay healthy. Vitamin K helps to form blood clots (a mass that forms when blood platelets, proteins, and cells stick together) and maintain strong bones. It is fat-soluble (can dissolve in fats and oils) and is found in green leafy vegetables, broccoli, liver, and vegetable oils. Vitamin K is also made by bacteria that live in the large intestine. Not enough vitamin K can lead to bleeding and bruising. It is a type of phylloquinone.

What is Vitamin K?

Vitamin K is a group of fat-soluble vitamins required for the synthesis of proteins needed for blood coagulation and for calcium binding in bones and other tissues.

Chemical Structure of Vitamin K

Vitamin K Physiology

Sources of Vitamin K

Vitamin K Deficiency

Vitamin K Biochemistry

Newborn Vitamin K Injections

Vitamin K Uses

Vitamin K2: Physiological Importance and Increasing Your Intake

Latest Vitamin K News and Research

Balancing diets: study reveals plant protein's impact on nutrient levels in Americans

Study examines how increasing plant protein intake affects nutritional adequacy in Americans, revealing shifts in vitamin and mineral sufficiency across age groups as plant-based diets become more prevalent.

15 Apr 2024

How do acetylsalicylic acid and warfarin interact with various nutrients?

45 drug-nutrient interactions (DNIs) that modify micro-nutritional status, particularly focusing on how acetylsalicylic acid (ASA) and warfarin may affect patients through various mechanisms.

28 Mar 2024

Reevaluating the role of direct oral anticoagulants in cardiovascular treatment

Direct oral anticoagulants (DOACs) are a common treatment for patients with a wide variety of cardiovascular conditions.

23 Feb 2024

New scientific statement outlines recommendations for diagnosing, managing cerebral venous thrombosis

A new scientific statement from the American Heart Association emphasizes the need to increase patients' and physicians' awareness of cerebral venous thrombosis (CVT) to improve the recognition of this condition and initiate prompt medical treatment.

29 Jan 2024

Comprehensive insights on pathophysiology and clinical management of atrial fibrillation

Atrial fibrillation (AF) is a major global health concern impacting millions and causing symptoms like palpitations, dyspnea, fatigue, dizziness, and chest discomfort.

8 Jan 2024

MHRA provides 5 festive top tips for people taking medicines or using medical devices

Christmas and New Year is a time when we particularly want to keep well and stay safe. The Medicines and Healthcare products Regulatory Agency (MHRA) has set out 5 festive top tips for people taking medicines or using medical devices.

21 Dec 2023

Leaky gut linked to depressive disorders: New insights into microbiota-induced epigenetic changes

A study in the journal Genes highlights how a leaky gut can lead to depressive disorders through changes in gut microbiota-derived metabolites, emphasizing the role of diet, environmental factors, and probiotics in managing these conditions.

18 Dec 2023

The effects of vitamin K on bone health

Existing scientific data on the effects of vitamin K (VK) on bone health and elucidated the underlying mechanisms.

30 Nov 2023

The impact of diet on boosting immune function

The role of fruits, vegetables, spices, animal products, and other foods in strengthening the immune system.

27 Nov 2023

Tufts researchers explore the science of aging

Anti-wrinkle creams, superfoods that keep you young, dietary supplements that promise improved memory, "immortal" cells that can renew themselves forever-;in our stores and media, claims about aging abound.

2 Nov 2023

Influence of healthy lifestyle habits on chronic disorders

The health benefits of regular exercise, a healthy diet, and adequate sleep.

2 Nov 2023

How does nutrition influence osteoarthritis prevention and management?

The influence of nutrition on osteoarthritis (OA).

16 Oct 2023

DOAC use associated with reduction in dementia risk compared to traditional blood thinners

The use of direct oral anticoagulants (DOACs) was associated with a reduction in dementia risk compared to traditional blood thinners-;like warfarin-;in atrial fibrillation patients, particularly in Asian patients.

5 Sep 2023

Modern blood thinners linked to reduced risk of bleeding

Modern blood-thinning drugs (known as NOACs) reduce the risk of serious bleeding by up to 45 percent compared to the traditional drug Waran in the treatment of blood clots in the legs and lungs.

29 Aug 2023

Switching to NOACs in frail elderly patients with atrial fibrillation increases bleeding risk

Switching vitamin K antagonist (VKA) treatment to a non-vitamin K antagonist oral anticoagulant (NOAC) in frail elderly patients with atrial fibrillation is associated with more bleeding complications compared to continuing VKA treatment.

28 Aug 2023

Low levels of vitamin K linked to poor lung function

People with low levels of vitamin K in their blood are more likely to have poor lung function and to say they suffer with asthma, chronic obstructive pulmonary disease (COPD) and wheezing, according to a study published today (Thursday) in ERJ Open Research.

9 Aug 2023

Vitamin K

Overview

Chemical Structure of Vitamin K

Vitamin K Physiology

Sources of Vitamin K

Feature Articles

Vitamin K Deficiency

Vitamin K Biochemistry

Newborn Vitamin K Injections

Vitamin K Uses

Vitamin K2: Physiological Importance and Increasing Your Intake

Latest Vitamin K News and Research

Balancing diets: study reveals plant protein's impact on nutrient levels in Americans

How do acetylsalicylic acid and warfarin interact with various nutrients?

Reevaluating the role of direct oral anticoagulants in cardiovascular treatment

New scientific statement outlines recommendations for diagnosing, managing cerebral venous thrombosis

Comprehensive insights on pathophysiology and clinical management of atrial fibrillation

MHRA provides 5 festive top tips for people taking medicines or using medical devices

Leaky gut linked to depressive disorders: New insights into microbiota-induced epigenetic changes

The effects of vitamin K on bone health

The impact of diet on boosting immune function

Tufts researchers explore the science of aging

Influence of healthy lifestyle habits on chronic disorders

How does nutrition influence osteoarthritis prevention and management?

DOAC use associated with reduction in dementia risk compared to traditional blood thinners

Modern blood thinners linked to reduced risk of bleeding

Switching to NOACs in frail elderly patients with atrial fibrillation increases bleeding risk

Low levels of vitamin K linked to poor lung function

Study highlights metabolite targets for depression prevention that are easily modifiable through diet interventions

The role of vitamins, minerals, and intestinal microbiota in heart disease development in adults and children

Unlocking the key to healthy aging: the influence of vitamin K on the diet-microbiome-health axis

Researchers characterize the expression of cardiac proteins during embryonic heart development

Expanding research and clinical options for children with cancer

Examining how pain could play a direct protective role in the gut

From Puberty to Menopause: Clue’s CEO, Audrey Tsang on the Power of Femtech

Vitamin K

Overview

Feature Articles

Vitamin K Deficiency

Vitamin K Biochemistry

Newborn Vitamin K Injections

Vitamin K Uses

Vitamin K2: Physiological Importance and Increasing Your Intake

Latest Vitamin K News and Research

Expanding research and clinical options for children with cancer

Examining how pain could play a direct protective role in the gut

From Puberty to Menopause: Clue’s CEO, Audrey Tsang on the Power of Femtech

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