How Therapeutic Nutrition Helps Treat Vitamin K Deficiency?
What Is Vitamin K?
Vitamin K is one of the fat-soluble vitamins, which means it can be stored in the body for long periods. As a result, the body does not require large amounts of it daily. Vitamin K is available in a variety of foods and dietary supplements. In this article, we will explore therapeutic nutrition approaches for treating Vitamin K deficiency. Read also about Specialized Therapeutic Nutrition Program.
Specialists in Therapeutic Nutrition have highlighted the importance of Vitamin K for the human body, as it plays a vital role in blood clotting and contributes significantly to maintaining healthy bones.
There are two main types of Vitamin K:
- Phylloquinone, also known as Vitamin K1, which is the primary form of Vitamin K obtained from plant-based sources.
- Menaquinone, also known as Vitamin K2, which is mainly obtained from animal-based sources.(1)
Benefits of Vitamin K According to Therapeutic Nutrition Experts
- Vitamin K helps protect the body from internal and external bleeding caused by excessive blood thinning because it supports the production of a protein called prothrombin, which is responsible for maintaining normal blood clotting.
- Vitamin K is commonly given to newborns to prevent bleeding complications.
- Vitamin K is prescribed for individuals with VKCFD clotting factor deficiency, which is usually hereditary, to prevent sudden bleeding episodes.
- It is often recommended for individuals with low prothrombin levels.
- Some individuals take blood-thinning medications such as warfarin to prevent blood clots. In these cases, Vitamin K supplements may be prescribed in controlled doses to maintain a healthy balance between blood clotting and blood fluidity.
- Vitamin K supports bone health by increasing bone density, which helps reduce the risk of fractures and osteoporosis.
- Vitamin K plays an important role in cardiovascular health by helping regulate blood pressure and improving the heart’s ability to pump blood throughout the body.
- It may reduce the risk of blood cancer.
- It helps maintain normal cholesterol levels in the blood.
- It may reduce the risk of heart disease.
- Some researchers believe Vitamin K may help improve stretch marks.
- It may help reduce skin rashes in people with cancer or multiple sclerosis.
- It may help reduce joint swelling, especially in people with rheumatoid arthritis.
(2)
The Amount of Vitamin K the Human Body Needs According to Therapeutic Nutrition Experts
The human body requires relatively small amounts of Vitamin K, approximately 1 microgram per kilogram of body weight. For example, a person weighing 70 kilograms would need around 70 micrograms of Vitamin K daily. The body uses part of this amount while storing the remaining quantity in the liver for future use. Therefore, it is not always necessary to consume Vitamin K-rich foods every single day.
6 Symptoms of Vitamin K Deficiency
Doctors specializing in Therapeutic Nutrition have identified several symptoms associated with Vitamin K deficiency, including:
- Bleeding from minor cuts or wounds.
- Blood in the stool.
- Frequent nosebleeds or bleeding gums.
- Heavy menstrual bleeding.
- Gastrointestinal bleeding.
- Newborns may experience bleeding from the nose, umbilical cord, digestive system, or even life-threatening brain hemorrhage.(4)
Causes of Vitamin K Deficiency
Experts in Therapeutic Nutrition have pointed to several causes that may lead to Vitamin K deficiency, including:
- Taking blood-thinning medications such as warfarin.
- Fat malabsorption caused by digestive disorders such as celiac disease and cystic fibrosis, which reduces Vitamin K absorption.
- Using certain types of antibiotics.
- Newborns are more vulnerable to Vitamin K deficiency because:
Breast milk contains low levels of Vitamin K.
Only very small amounts of Vitamin K pass to the fetus because it does not effectively cross the placenta.(5)
Diagnosis and Treatment of Vitamin K Deficiency
First: Diagnosing Vitamin K Deficiency
Doctors usually identify Vitamin K deficiency after sudden bleeding episodes. Patients are commonly asked to perform a PT/INR test, which is the primary diagnostic test for Vitamin K deficiency. This test measures the time required for blood clotting. The normal clotting time ranges between 11–13.5 seconds. If clotting takes longer than this range, it may indicate Vitamin K deficiency.
Second: Treating Vitamin K Deficiency
If a person is diagnosed with Vitamin K deficiency, doctors may prescribe phytonadione injections or tablets, which are forms of Vitamin K1. Doses usually range from 1–25 mg. However, individuals taking blood-thinning medications may require smaller doses between 1–10 mg to avoid drug interactions. Newborns are commonly given a single Vitamin K1 injection ranging from 0.5–1 mg, although the dosage may increase if the mother is taking blood thinners or anti-seizure medications.(4),(6)
Food Sources of Vitamin K
Specialists in Therapeutic Nutrition have highlighted the most important food sources rich in Vitamin K, including:
- Spinach.
- Green beans.
- Cabbage and broccoli.
- Liver and poultry.
- Soybean oil.
- Full-fat dairy products and cheese.
- Egg yolks.
- Peas and soybeans.
- Peaches and berries.
- Pomegranates and grapes.
- Tomatoes and butter.(7)
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Updated at: 2026-05-13 17:45:47