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Know Your Blood Parameter : Vitamin B5 (Pantothenic Acid)

Updated: Dec 29, 2025


1. Parameter Name 

Vitamin B5 (Pantothenic Acid)

Vitamin B5, also known as pantothenic acid, is a water-soluble vitamin that plays a crucial role in various metabolic processes within the human body. It is part of the B-vitamin complex and is essential for the synthesis of coenzyme A (CoA), a vital cofactor in numerous biochemical reactions. Coenzyme A is involved in the metabolism of carbohydrates, fats, and proteins, making pantothenic acid integral to energy production.


2. Test Type 

The test for Vitamin B5 can be conducted through either blood or urine samples. Blood tests typically measure the concentration of the vitamin in the bloodstream, while urine tests assess the amount excreted by the body, providing insight into both current levels and overall metabolism of the vitamin.


3. Normal Range 

The normal range for Vitamin B5 in urine is generally considered to be between 0.8 and 8.4 µg/mL, although this can vary depending on the specific laboratory performing the test and the methods they utilize for measurement. It is essential to interpret these values within the context of individual health and dietary intake.


4. High Levels Indicate 

High levels of Vitamin B5 are quite rare and are usually not considered toxic to the body. When excess amounts are consumed, the body typically excretes the surplus through urine, thus maintaining a balance. However, consistently elevated levels may warrant further investigation to rule out underlying metabolic issues or excessive supplementation.


5. Low Levels Indicate 

Although Vitamin B5 deficiency is extremely rare due to its widespread availability in various foods, low levels can occur and may lead to symptoms such as fatigue, irritability, and numbness in extremities. In severe cases, individuals may experience additional neurological symptoms, highlighting the importance of maintaining adequate levels of this essential nutrient.


6. Why It's Tested 

Vitamin B5 is tested primarily to evaluate an individual's nutritional status, particularly in cases of suspected malnutrition or metabolic disorders that may impair nutrient absorption. It is also useful in monitoring patients with chronic illnesses or conditions that require enhanced nutritional support, ensuring that their dietary needs are being met effectively


7. Associated Symptoms (if abnormal) 

When Vitamin B5 levels are abnormal, individuals may present with a range of symptoms including persistent fatigue, frequent headaches, and numbness or tingling sensations. Additionally, a condition known as burning feet syndrome may occur, which is characterized by a painful burning sensation in the feet, often linked to vitamin deficiencies, including that of pantothenic acid.


8. What To Do If Abnormal

If test results indicate abnormal levels of Vitamin B5, it is advisable to enhance dietary intake by incorporating foods rich in pantothenic acid, such as eggs, meat, and whole grains. In some cases, healthcare providers may recommend vitamin supplements to help restore optimal levels. It is essential to consult with a healthcare professional before starting any supplementation to ensure safety and appropriateness based on individual health needs.


9. Common Conditions Related 

While deficiency syndromes related to Vitamin B5 are rare, certain metabolic dysfunctions can be linked to its inadequate levels. Conditions such as adrenal insufficiency or chronic stress may affect the body's ability to utilize or absorb this vital nutrient, leading to potential health concerns that require medical attention and dietary adjustments.


10. Nutrition or Lifestyle Connection 

Vitamin B5 is abundantly found in a variety of foods, making it relatively easy to obtain through a balanced diet. Key sources include eggs, various meats, whole grains, fresh vegetables like broccoli, and healthy fats such as avocados. Emphasizing these foods in one’s diet can help maintain adequate levels of pantothenic acid, supporting overall health and well-being.


11. References (APA Format) 

  • NIH Office of Dietary Supplements. (2022). Pantothenic Acid. 

  • MedlinePlus. (2023). Pantothenic acid test. https://medlineplus.gov


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