
Vitamin D 13.4 ng/ml means : causes, sources, risks, treatment
In this article we discuss what a Vitamin D value of 13.4 ng/ml means, what are its causes and how to calculate your Vitamin D deficiency risk score, and how to improve your Vitamin D as well as a treatment plan and possible risks.Published Date : 2023-09-06T14:56:15.567Z
Updated Date : 2023-09-06T14:56:15.567+00:00
Table of Contents
What does a Vitamin D level of 13.4 mean?
What is my Vitamin D level in SI units, for value of 13.4 in standard units?
Is a Vitamin D value of 13.4 considered low or high?
What are the sources of Vitamin D?
What are the causes of Vitamin D deficiency?
What symptoms will I experience with a Vitamin D of 13.4 ng/ml?
What additional risks do I face with a Vitamin D level of 13.4?
What is my Vitamin D deficiency score and how to calculate it?
What is the treatment plan for a Vitamin D level of 13.4?
What does a Vitamin D level of 13.4 mean?
A vitamin d level of 13.4 is considered to be deficient.
What is my Vitamin D level in SI units, for value of 13.4 in standard units?
In order to convert the value of Vitamin D from ng/ml into the SI Units, we must use a formula of conversion : Vitamin D in SI units (nmol/L) = Vitamin D in ng/ml*2.4961 Based on the given formula, the value of Vitamin D in SI units for a value in ng/ml of 13.4 is 33.4 nmol/L
Is a Vitamin D value of 13.4 considered low or high?
Based on your Vitamin D value of 13.4. you are classified as having a moderate Vitamin D deficiency.
Vitamin D Levels
Category | Level (ng/mL) | Description |
---|---|---|
Severe Deficiency | < 10 | Severely low vitamin D levels |
Moderate Deficiency | 10 - 20 | Moderate Vitamin D Deficiency **You are here** |
Insufficiency | 20 - 30 | Mild to Insufficient |
Healthy | 30 - 80 | Normal Vitamin D Levels |
Toxicity | > 80 | Potentially harmful vitamin D levels |
What are the sources of Vitamin D?
Food | How it helps with Vitamin D |
---|---|
Pork chops | Pork chops contain Vitamin D, particularly if they include the bone. |
Canned mackerel | Canned mackerel, like fresh mackerel, is a good source of Vitamin D. |
Fortified orange juice | Certain brands of orange juice are fortified with Vitamin D to increase its nutritional value. |
Bluefin tuna | Bluefin tuna is a fatty fish that contains high levels of Vitamin D. |
Canned salmon | Canned salmon, especially with bones, provides a convenient source of Vitamin D. |
Egg yolks | Egg yolks contain small amounts of Vitamin D, especially if the hens are raised on Vitamin D-enriched feed. |
Cheese | Certain types of cheese, like Swiss and cheddar, contain small amounts of Vitamin D. |
Fortified plant-based milk | Non-dairy milk alternatives (e.g., almond, soy) are often fortified with Vitamin D. |
Fortified cereals | Many cereals are enriched with Vitamin D to improve nutritional content. |
Caviar | Fish roe, or caviar, can provide small amounts of Vitamin D. |
What are the causes of Vitamin D deficiency?
Cause | Description |
---|---|
Chronic obstructive pulmonary disease (COPD) | People with COPD may have limited outdoor activities and altered Vitamin D metabolism. |
Premature birth | Premature infants may have underdeveloped systems for producing and utilizing Vitamin D. |
Cystic fibrosis | Individuals with cystic fibrosis are at a higher risk of Vitamin D deficiency due to malabsorption. |
Certain hormonal disorders | Hormonal imbalances can influence Vitamin D metabolism and its effects on the body. |
Chronic kidney disease | Kidney dysfunction can disrupt the activation of Vitamin D, leading to deficiency. |
Malabsorption disorders | Conditions like celiac disease can affect the body's ability to absorb Vitamin D from the digestive tract. |
Gastric bypass surgery | Surgical procedures that alter the digestive system can limit the absorption of nutrients, including Vitamin D. |
Crohn's disease | An inflammatory bowel disease that can lead to malabsorption and nutrient deficiencies. |
Kidney disorders | Kidney diseases can reduce the activation of Vitamin D in the body, affecting its functions. |
Inflammatory bowel disease | Conditions like Crohn's disease can impair nutrient absorption, including Vitamin D. |
What symptoms will I experience with a Vitamin D of 13.4 ng/ml?
The symptoms of Vitamin D deficiency in children and adults are manifested by rickets and osteomalacia respectively. These conditions may show a variety of symptoms ranging from mild muscle pain, and bone pain to developmental abnormalities and fractures. For a Vitamin D level of 13.4 the symptoms are enlisted in the table below:Vitamin D level 13.4 Symptoms in Children
Symptom | Description |
---|---|
Muscle Weakness | Muscle weakness can result from compromised bone health and nutritional deficiencies associated with rickets. |
Brittle Nails | Rickets can cause nails to become brittle and prone to breaking. |
Enlarged Joints | Swelling and tenderness in the joints can occur as a result of rickets. |
Dental Problems | Rickets can affect the development of teeth, leading to dental issues such as delayed eruption and enamel defects. |
Fractures | Due to weakened bones, children with rickets are more prone to fractures even with minor injuries. |
Wide Fontanelles | The soft spots on a baby's skull, known as fontanelles, might take longer to close in cases of rickets. |
Delayed Puberty | In severe cases, rickets can delay the onset of puberty due to its impact on bone and overall development. |
Fatigue | Chronic pain and muscle weakness can result in increased fatigue and reduced activity levels. |
Delayed Healing | Fractures and other injuries may take longer to heal in children with rickets. |
Curvature of the Spine | Rickets can contribute to spinal deformities, such as scoliosis or kyphosis (excessive forward curvature of the upper spine). |
Vitamin D level 13.4 Symptoms in Adults
Symptom | Description |
---|---|
Fatigue | Generalized fatigue and weakness are common symptoms of osteomalacia. |
Depression | Chronic pain and physical limitations in osteomalacia can contribute to feelings of depression. |
Bone Deformities | Osteomalacia can lead to bone deformities, such as bowed legs or a curvature of the spine. |
Dental Problems | Osteomalacia can affect the teeth, leading to enamel defects and other dental issues. |
Difficulty Standing | Weak bones and muscles can make it challenging to stand for prolonged periods. |
Fractures | Brittle and weak bones due to osteomalacia increase the risk of fractures even with minor injuries. |
Difficulty Climbing Stairs | Muscle weakness and bone pain can make climbing stairs difficult for those with osteomalacia. |
Bone Pain | Osteomalacia often leads to bone pain, particularly in the hips, lower back, and legs. |
Bone Tenderness | Bones affected by osteomalacia can become tender to the touch. |
Frequent Infections | Impaired bone health can weaken the immune system, leading to an increased susceptibility to infections. |
What additional risks do I face with a Vitamin D level of 13.4?
Level | Risk |
---|---|
Your value is Less Than 25 | Increased risk of fallsBischoff-Ferrari |
Your value is Less Than 15 | Two fold higher risk of having high blood pressure as those with Vitamin D above 26Reis JP |
Your value is Less Than 21 | Increased risk of diabetes, hypertension, obesity and high triglyceride levelsMartins D |
What is my Vitamin D deficiency score and how to calculate it?
Since your value of Vitamin D 13.4 is below the normal limit of 30, you must evaluate the following 4 factors that may be contributing to your deficiency. Based on a study done by Garg et al the following Vitamin D Insufficiency and Deficiency Score can predict and determine your causes of deficiency.
As per the study 4 major factors are invovled in Vitamin D deficiency.
Factors and Descriptions
Factor | Description |
---|---|
Physical Activity | Engaging in regular physical activity can contribute to improved metabolism and Vitamin D levels. |
Obesity | Obesity, indicated by a body mass index (BMI) of 25 kg/m² or higher, can lead to Vitamin D deficiencies |
Diet | Dietary intake of at least 100 Grams (gms) of milk/dairy products OR at least 100 gms fish or 1 egg with yolk for four or more days in the last seven days was considered Adequate |
Daily Sun Exposure | Daily exposure to sunlight is important for the body's synthesis of Vitamin D. Spending at least 1.75 hours in the sun each day can help maintain Vitamin D levels, which is essential for bone health and immune function. |
Insufficiency Score for Vitamin D : 13.4
- You get less than 1.75 hours of sunlight per day
- AND
- Insufficient Dietary Intake + Obesity
- AND
- Obesity OR Insufficient Exercise
- Score : Your Vitamin D Insufficiency Score ranges between 14 - 18.
What is the treatment plan for a Vitamin D level of 13.4?
Vitamin D supplmentation is the only way to correct for deficiencies. The tables below list the dosages of Vitamin D supplements recommeded for different age groups, depending on the level of the Vitamin D. Since your value of Vitamin D is 13.4 the relevant supplement dosages are indicated below.Pawel Pludowski
Recommended Daily Dosing for Vitamin D in cases where the Vitamin D Level is between 10 ng/dl and upto 30 ng/dl
A first line of treatment involves increasing the dosage to 1.5-2 x the current level of supplements if the patient is taking any supplements.
If you are not taking any supplements, the values in the table below are to be followed.
Age Group | Vitamin D Intake Per Day | Duration |
---|---|---|
Infants < 1 month | 1000 IU/d | 2 months |
Infants 1–12 months | 1000 IU/d | 2 months |
Children 1–11 yrs. | 1465 IU/d **(Represents a value in the range of 1000 - 2000, must be adjusted as per patient.) | 2 months |
Children 11–18 yrs. | 3343 IU/d **(Represents a value in the range of 2000 - 4000, must be adjusted as per patient.) | 2 months |
Adults | 4000 IU/d | 2 months |

Reviewed By - Dr.Bhargav Raut
Dr.Bhargav Raut is a qualified Pathologist, with over 5 years of experience in the field
Kindly note that any mention of products, doctors or hospitals in any of our blogs/content is purely for informational purposes and does not imply affiliation or endorsement.
Dr.Bhargav Raut offers Online Consultation for your lab reports. If you are confused about your reports, or want an opinion for a health concern, click the button below. He charges USD 14.99/- to go over your case. Dr.Raut is board certified (India) and has several years of experience in interpreting lab reports
Please attach your lab reports in the email with a short description of your illness/problem.
Email us at support@pathofast.com or click the button below