Vitamin B6 Deficiency Symptoms and Their Impact on Health
Vitamin B6, also known as pyridoxine, is an essential nutrient that plays a key role in maintaining overall health. It is crucial for energy production, maintenance of brain health, immune function and protein, carbohydrate and fat breakdown.
Vitamin B6 plays a crucial role in various bodily processes, such as brain health, immune function, energy production, and overall well-being.
A vitamin B6 deficiency can happen due to health conditions, lifestyle habits, or nutritional issues, though most people can obtain sufficient vitamin B6 by eating a well-balanced diet. Low vitamin B6 can cause symptoms that are easily seen, including mood disorders, fatigue, and impaired immune function.
Vitamin B6 is involved in several important functions of the body, such as brain health, immune support, energy production, and red blood cell production. A deficiency of vitamin B6 may lead to noticeable changes in your skin, mood, energy levels, and overall health.
Let’s discuss more about the common vitamin B6 deficiency symptoms and signs.
Causes of Vitamin B6 Deficiency
Some common factors that lead to a vitamin B6 deficiency are:
| Causes | Impact |
| Poor diet | Not enough vitamin intake |
| Pregnancy | More vitamin requirement |
| Alcohol abuse | Low absorption of vitamin B6 |
| Some medications | Interferes with metabolism |
Signs and Symptoms of Vitamin B6 Deficiency
Vitamin B6 deficiency symptoms may differ from person to person and from one degree of deficiency to another. Some of the most common signs and symptoms include the following:
Skin Rashes
A vitamin B6 deficiency can contribute to the development of a red, itchy skin rash known as seborrheic dermatitis. This rash frequently develops on the scalp, face, neck and upper chest.
It tends to look oily and flaky, and can lead to irritation, swelling or white patches on the affected skin. Since vitamin B6 helps the body produce collagen, which is important for maintaining healthy skin, low levels of this nutrient may affect skin health.
In cases where deficiency is the underlying cause, increasing vitamin B6 intake may help improve the rash. Some people with seborrheic dermatitis may require higher amounts of vitamin B6, and vitamin B6-based face creams have helped improve symptoms for some individuals.
Low Energy and Fatigue
While rare, high levels of vitamin B6 deficiency may cause anaemia, or a lack of healthy red blood cells. This can lead to fatigue, low energy and weakness.
Fatigue can also occur due to deficiencies in other nutrients, including iron, vitamin B12, and folate. Older adults may be more likely to have low vitamin B6 levels due to inadequate food intake or reduced nutrient absorption as the body ages.
Certain health conditions, such as kidney disease and digestive disorders that affect nutrient absorption, can also increase the risk of deficiency. Excessive alcohol use and some prescription medications may contribute to low vitamin B6 levels. If you are prescribed a new medication, it is helpful to discuss its possible effects on nutrient levels with your healthcare provider.
Cracked and Sore Lips
Vitamin B6 deficiency can cause cheilosis, which is a cracked, swollen, red, sore lip, particularly around the corners of the mouth. These cracks can leak, become infected and cause pain when eating or talking.
Improving vitamin B6 intake through foods rich in this nutrient or supplements may help relieve these symptoms. But other nutritional deficiencies (riboflavin, folate and iron) and environmental factors (dry, sunny and windy weather) can also lead to cracked lips.
Glossy and Sore Tongue
Vitamin B6 deficiency can lead to glossitis, an enlarged, sore, smooth, inflamed or red tongue. The smooth and shiny texture is caused by the absence of small bumps on the tongue's surface (papillae). Glossitis can cause difficulty chewing, swallowing and talking.
Restoring vitamin B6 levels can help improve glossitis when deficiency is the main cause. However, deficiencies of other nutrients, including folate and vitamin B12, can also contribute to this condition.
Morning Sickness
Pregnant individuals require higher amounts of vitamin B6 compared with many other adults. Low levels of this nutrient may contribute to nausea and vomiting during pregnancy.
Vitamin B6 supplements may help reduce symptoms of morning sickness for some people. However, supplements should only be taken by pregnant women under the direction of a medical provider.
Mood Changes
Vitamin B6 depletion can also influence emotional well-being and lead to mood changes.
Some examples of the impact of deficiency on mental health are:
- Depression
- Anxiety
- Increased pain sensitivity
- Irritability
- Difficulty concentrating
- Confusion
This is because vitamin B6 plays a role in producing neurotransmitters such as serotonin and gamma-aminobutyric acid (GABA), which help regulate mood, stress responses, and pain perception.
Research continues to explore the role of vitamin B6 in managing mood-related conditions. Some studies suggest that taking vitamin B6 supplements may help reduce symptoms of premenstrual syndrome (PMS).
Although the exact effects of vitamin B6 are not fully understood, it could be beneficial for the body to produce serotonin and therefore help regulate mood.
Weakened Immune Function
Low vitamin B6 levels can decrease the production of antibodies needed to protect against infections. It can also make it less likely for white blood cells, such as T cells, to be produced in the body that help regulate immune function.
Vitamin B6 helps the production of interleukin-2, a protein that regulates the activity of immune cells. People with autoimmune conditions may have a higher need for vitamin B6 because the body may use it more quickly.
Brain Fog and Cognitive Changes
Vitamin B6 contributes to the proper functioning of the brain, providing memory, mood regulation, and normal nervous activity. Deficiency can lead to symptoms such as confusion, poor concentration and changes in mood.
In elderly people who have decreased B6 levels, depression and cognitive disorders become more likely to appear following a significant health event like stroke, hip fracture, or any major illness.
Conclusion
While Vitamin B6 deficiency is uncommon, low levels can lead to various symptoms such as skin problems, fatigue, mood changes, and weakened immunity.
Consuming a balanced diet that includes foods rich in vitamin B6 can help you avoid deficiency and maintain healthy body functions. If symptoms persist, talk to a healthcare provider for an accurate diagnosis and guidance.
Reader Information: This article is intended for general health education only. Symptoms linked to vitamin B6 deficiency can overlap with other nutritional deficiencies and medical conditions, so a healthcare professional should be consulted for diagnosis and treatment advice.
