Early signs of vitamin B12 deficiency

MedToday Lectures
MedToday Lectures
2 Video Views·Oct 9, 2026  #vitaminb12

6 Early Signs Of vitamin B12 deficiency You Shouldn’t Ignore.

Number one. Fatigue and weakness.

Vitamin B12 is essential in red blood cell production. Reduced vitamin B12 levels can cause megaloblastic anemia, leading to fatigue and weakness.

Number two. Tingling and numbness.

Vitamin B12 is also important in maintaining proper nerve function. When vitamin B12 levels are low, you’ll experience tingling and numbness in hands and foot due to peripheral nerve involvement.

Number three. Pallor.

Anaemia associated with vitamin B12 deficiency can lead to pale skin and mucus membranes.

Number four. A sore, red tongue. Glossitis can cause the tongue to become inflamed, smooth, and painful, with a beefy red tongue.

Number five. Memory and concentration difficulties. Some people develop poor concentration, forgetfulness, or other cognitive changes.

Number six. Mouth ulcers. Recurrent oral ulcers can sometimes occur in people with vitamin B12 deficiency.

Finally, it is important to keep in mind that these symptoms can have many causes. Therefore, a complete blood count and a blood picture, or checking vitamin B12 levels are helpful in the diagnosis of vitamin B12 deficiency.

This video is for educational purposes only and is not a substitute for professional medical advice.

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