Vitamin B 12 is one of the vitamins of the B complex with an amazing health benefits for human health. it structure is probably most complex and it deficiency can cause variety of health problems. Vitamin B 12 is characteristic because only one that can synthesize it is some bacteria and therefore it is only present in animal based food.

Vitamin B 12 is the most important for healthy blood cells, normal functioning of the nervous system and forming DNA. It will protect the body from formation of tumor cells, keep the nervous system healthy, and boost the concentration, memory and the balance. Vitamin B 12 is good source of energy for the body and mind. According to the age our body needs from 2, 4 -2, 8 micro grams of vitamin B 12. Everything that is over this limit will lead to overdose of this vitamin and if you don’t get sufficient amounts your body will suffer from various disorders.


These are some of the most common symptoms that can point that you are having vitamin B 12 deficiency.

Constant feeling of dizziness and vertigo are symptoms that   may point on deficiency of vitamin B 12.  If you start feeling these symptoms constantly it is recommended to see your doctor and do all needed examinations so that he can determine the right cause of dizziness and vertigo.

Muscle weakness
Deficiency of vitamin B 12 can cause weakness in your muscles that will make it harder for you to do even the simplest routines in your everyday life.

Pale complexion
Patients that suffer from vitamin deficiency usually have pale complexion that is caused by low erythrocytes count. This is also the case with B 12 deficiency, because this vitamin helps in formation of red blood cells. So if your face looks pale and it is not your usual color then see your doctor to see what causes the change.

Vitamin B 12 has very important role in normal functioning of nervous system so changes in mental functions may be a cause of it deficiency. There are a lot of studies that can confirm that people with Alzheimer’s disease as well as some forms of dementia are also suffering from vitamin B 12 deficiency.

Vitamin B 12 deficiency is usually followed with characteristic stiffness in the arms and legs that causes sort of tingling sensation of something going through your body. this is a symptom that is also linked to nervous damaging so it will be good to see your doctor if you start experiencing this symptom.

Vision problems
If you don’t get enough vitamin B 12 you can also experience problems with vision. Risk of developing vision problems as glaucoma, cataract or macular degeneration is higher in people that don’t get enough vitamin B 12.

Vitamin B 12 has important role in formation of red blood cells. If your body doesn’t get enough vitamin B 12 your red blood cells level will reduce and it means that your body will not get enough oxygen. This causes episodes of unexplained tiredness and lethargy that may last for days.