Vitamin Deficiency Tests: Everything You Need To Know Before

One of the major reasons why you need to know about vitamin deficiency tests Vitamins are organic compounds that we consume in our daily lives, either through food or supplements. Although they are required in small quantities, each type of vitamin has a different role in maintaining health and bodily function. Different vitamins play various roles in the body for example humans need to get vitamin C from their diets- while dogs can produce all the vitamin C that they need, apart from vitamin C other vitamins such as vitamins A, D, E, K, are important for good vision, bones health, cells protection, and crucial for clotting blood. A person requires a different amount of each vitamin to stay healthy. 

There are currently 13 recognized vitamins. Many people in the United States take vitamin supplements because they do not get enough of these through their diet. According to the National Institute of Health(NIH), “The most prevalent micronutrient deficiency was VDD (61 %), followed by iron (54 %), vitamin B12 deficiency (53 %), folic acid (37 %) and IDD 17 %”, and another research says, about 92% of the U.S population has vitamin deficiency and is increasing in an alarming rate. 

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Why you should get yourself tested?

Deficiency of vitamins can cause several diseases in humans such as night blindness(lack of vitamin A), Rickets(lack of vitamin D), and even nerve and muscle damage due to lack of Vitamin E. Getting checked and addressing these issues is significant, getting a vitamin test done by the help of your local healthcare provider is one way you can get diagnosed of these deficiencies. Vitamin tests can help individuals determine if they have a deficiency or an excess of certain vitamins. Vitamin testing is important for several reasons:

1. Identifying Deficiencies

Early Detection: Vitamin testing helps detect deficiencies before they lead to more serious health issues.

Symptom Diagnosis: Certain symptoms like fatigue, muscle weakness, or immune system problems can be linked to vitamin deficiencies. Testing can pinpoint the exact deficiency.

2. Personalized Nutrition

Tailored Diet: By knowing your vitamin levels, you can adjust your diet to meet your specific needs.

Supplementation: It helps in determining if you need supplements and the appropriate dosage, preventing both deficiencies and overdoses.

3. Chronic Disease Prevention

Bone Health: Vitamin D and calcium levels are crucial for preventing osteoporosis.

Heart Health: Vitamins like B12 and folate are important for cardiovascular health. Testing can help in managing and preventing heart-related conditions.

4. Monitoring Health Conditions

Chronic Illnesses: For individuals with conditions like diabetes, celiac disease, or Crohn’s disease, regular vitamin testing ensures they maintain adequate nutrient levels.

Post-Surgery: After surgeries like bariatric surgery, vitamin levels need to be monitored to avoid deficiencies due to altered absorption.

5. Overall Well-being

Energy Levels: Adequate vitamins are essential for maintaining energy levels and overall vitality.

Mental Health: Vitamins like B12 and D are linked to mood regulation and cognitive function. Testing can help manage mental health conditions.

6. Guiding Treatment Plans

Medical Guidance: For individuals on medications or with specific health conditions, vitamin testing can guide treatment plans, ensuring that interventions are effective and safe.

How to Test for Vitamin deficiency?

” Use a finger-prick test kit to collect a

small blood sample and send it to a lab for analysis.

Clinical Testing: Visit your doctor to have a venous blood sample taken for a more comprehensive analysis.

The Procedure of Vitamin Testing

What You Need to Know About Tests for Vitamin Deficiencies: A Comprehensive Guide

These tests can be performed in several ways, depending on your symptoms and what your healthcare provider is looking for.

1. Blood Tests

These are the most common methods for assessing vitamin levels. These tests can measure how much of a specific vitamin is present in your bloodstream.

Types of Blood Tests:

Finger-Prick Test: A small, self-administered test where you use a lancet to prick your finger and collect a small blood sample. The sample is then sent to a lab for analysis.

Venous Blood Test: Conducted by a healthcare professional, this involves drawing blood from a vein, typically in the arm, and sending it to a lab for testing.

2. Urine Tests:

Purpose: Urine tests can indicate how much of a vitamin is being excreted by your body, helping to assess whether you’re absorbing and using vitamins properly or excreting too much.

3. Hair Tests:

Purpose: Hair tests measure the levels of certain vitamins stored in your hair follicles. This method provides information about long-term vitamin levels, as hair grows slowly.

When to Get a Vitamin Test?

Here are some situations where you can consider getting a vitamin deficiency test:

  • If you are always low in energy despite getting enough sleep, it could be a sign of a deficiency of vitamin B12 or D. This test can help you identify the root cause of your fatigue and get further help. 
  • Many people don’t uptake proper nutrients due to certain reasons such as diet restrictions, poor diet habits, lack of access to a variety of food, poverty, or even certain eating disorders. Getting a vitamin test can help determine if you need to adjust your diet or take supplements. 
  • If someone in your family particularly your parents or grandparents has a history of vitamin deficiency then you may be at a higher risk of developing similar issues. testing can help in early diagnosis and prevent you from further diseases.
  • If you have experienced significant changes in your health, such as a new diagnosis of a chronic illness, surgery, or a recent pregnancy, it’s a good idea to check your vitamin levels.

Vitamin deficiencies are more common than many realize and can significantly impact overall health and well-being. By getting tested your healthcare provider gets the right idea of your underlying health condition and helps address potential health concerns early and take proactive steps toward a healthier and disease-free life.

By early detection, following a tailored diet, and taking medical guidance these deficiencies can be prevented allowing you to tailor your lifestyle choices to meet your body’s unique needs. 

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Written by Chahat Suri

PhD, Oncology at the Cross Cancer Institute, University of Alberta, Edmonton, Canada
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