Signs of Vitamin B6 Deficiency: What to Watch For

Vitamin B6 is essential for many functions in the body, from boosting metabolism and supporting brain health to strengthening the immune system. Despite its importance, many people don’t get enough of this nutrient, leading to health problems. Recognizing signs of deficiency early can help you adjust your diet and lifestyle for better health. Here are some key symptoms to watch out for.

1. Skin Irritations and Painful Lips
One common sign of vitamin B6 deficiency is seborrheic dermatitis, a skin condition causing red, itchy rashes on the face, neck, and scalp. Often persistent despite treatments, these irritations may indicate a lack of B6. Additionally, chapped, cracked lips, particularly at the corners (known as angular cheilitis), can also be a painful indicator, making everyday actions like smiling and eating uncomfortable.

2. Emotional Changes and Mood Swings
Vitamin B6 plays a major role in producing “feel-good” brain chemicals like serotonin and dopamine. Without enough B6, people may experience mood changes such as irritability, anxiety, or feelings of sadness. These emotional symptoms are often overlooked but are a critical part of recognizing B6 deficiency.

3. Fatigue and Weakness
B6 helps create hemoglobin, the protein in red blood cells that carries oxygen throughout the body. Low levels can lead to fatigue, weakness, and a persistent lack of energy, even after a good night’s sleep. This can significantly affect daily activities and overall well-being.

4. Weakened Immunity and Nerve Issues
A deficiency in vitamin B6 can compromise the immune system, making you more susceptible to illnesses due to fewer lymphocytes, which are essential immune cells. In more severe cases, it can also lead to nerve problems, such as tingling or numbness in the hands and feet, a condition known as peripheral neuropathy. Identifying these signs early can be crucial to prevent further health issues.