What Runners Should Know About Vitamin B12 Deficiency

Role of Vitamin B12:

Vitamin B12 is essential for the production of red blood cells, nerve function, and DNA synthesis.

Symptoms of Vitamin B12:

Symptoms of B12 deficiency may include fatigue, weakness, anemia, difficulty concentrating, memory problems, and numbness or tingling in the hands and feet.

Vegans and Vegetarians:

Vitamin B12 is primarily found in animal products. Therefore, individuals following a vegan or vegetarian diet may be at a higher risk of B12 deficiency.

Gastrointestinal Conditions:

Runners with certain gastrointestinal conditions, such as celiac disease, Crohn's disease, or atrophic gastritis.

Long-Term Medication Use:

Some medications, such as proton pump inhibitors (PPIs) and certain types of antacids, can interfere with the absorption of vitamin B12.

Age Factor:

Vitamin B12 absorption tends to decrease with age. Older runners may be at a higher risk of deficiency and should pay attention to their B12 intake through diet or supplements.

Routine Blood Tests:

Regular blood tests can help assess vitamin B12 levels. Runners, especially those in high-impact training, should consider including B12.


In cases where dietary intake is insufficient or absorption is compromised, supplementation may be recommended.

Dietary Sources of B12:

Animal products such as meat, fish, dairy, and eggs are rich sources of vitamin B12. Runners should include these foods in their diet to ensure an adequate intake.

Healthcare Professional:

If runners experience symptoms of B12 deficiency or have concerns about their B12 levels, it's important to consult with a healthcare professional.

for  more stories..