Even though the food we take is rich in all nutrients, we may end up getting some in excess and some lower than the required amount. In a normal person these symptoms might not be so dramatically visible, but in some severe cases they turn fatal. To fight the deficiency, these supplements are provided to meet the bodies’ needs. The dose is always determined by the doctors. Some times in administered cases the patient might end up taking an overdose. Just as excess of anything is bad, vitamin b12 overdose is also harmful. Though it might be known as energy booster, it is not good to have excess of it. We shall understand why.

Vitamin b12 is a water soluble vitamin. That means any excess amount, if at all consumed, get flushed out of the body. In cases of very high intake of this vitamin or in case where the kidneys do not function normally, this nutrient may become excessive. The general signs of vitamin b12 overdose are numbness in the extremities, headaches, nausea etc. Since it increases overall body metabolism, it also disturbs the normal functioning of the heart.

Vitamin b12 increases the rate of metabolism in the body. Thereby increasing rate of cell division. Due to this, the number of cells grows and multiply much faster than normal. This is the same case as in cancer. The body does not recognize between the normal and the cancerous cells. This leads to cancer.

Leukemia is also one of the outcomes of vitamin b12 overdose. Though overdose of vitamins is not a very common thing, however, it does not nullify the consequences or advocates non administered intake of any vitamins for that mater. The body is well equipped to handle some deficiency and some over dosage of nutrients, but extremes of any nature is not good.

It is not to be feared that any amount of vitamins especially vitamin b12, may cause harm always. Instead it is better if we consult the doctor who can determine the exact dose which is suitable for a good health. The dosage may vary from person to person. Sometimes, people get excited about the benefits of viatmain12 that are advertised on the internet and otherwise, and they get tempted to start taking the supplement to loose weight, or for better immunity. This is very inappropriate. Always visit a doctor who will advise the brand and the dose.