Vitamin B12 is an important nutrient that helps your body produce red blood cells, nerve cells, and DNA. Vitamin B12 deficiency can cause many symptoms such as
This is one of the most common symptoms of B12 deficiency. Such people feel tired all the time even after getting good sleep at night.
This is a symptom of nerve damage caused by B12 deficiency. It feels like pins and needles or it feels as if your arms and legs are falling asleep.
B12 deficiency can lead to anemia, a condition in which your body doesn't have enough healthy red blood cells. These cells carry oxygen throughout your body, so if you don't have enough oxygen, your skin may look pale.
A healthy tongue is rough and bumpy. If your tongue is smooth, it could be a sign of B12 deficiency.
B12 deficiency can damage the optic nerve, causing problems like blurred vision or loss of vision.
B12 deficiency can cause a variety of mental problems, including depression, memory loss, and dementia.
Some people with B12 deficiency may lose their appetite and experience weight loss.