25/05/2026
Vitamin B12 is essential for red blood cell production, nervous system function, and energy metabolism. It is found mainly in animal-based foods, so people following a plant-based diet may be at greater risk of low intake. People who have had bariatric surgery may also be more vulnerable to deficiency due to reduced absorption.
Low vitamin B12 levels can contribute to fatigue, weakness, tingling or numbness, and difficulty concentrating. Regular monitoring can help identify low levels early and guide appropriate supplementation where needed.
If you follow a plant-based diet or have had bariatric surgery, regular B12 monitoring and supplementation may be important.
Small nutrients can make a big difference to long-term health.