As one of the most widely used vitamins in the world, and as the most common ingredient in men’s multivitamins, B12 generates a lot of chatter on our site.
And one of the most common questions we get asked is, does B12 give you energy?
Let’s take a look at what B12 is, how it works, and see what it does to the body.
What does B12 do?
B12 is sometimes called cobalamin. It is a water soluble vitamin vital to the human body.
B12 is found in one form or another in every cell in the human body. It is needed for the formation of every cell, and it is needed for the continual operation of every cell.
More specifically, B12 is a cofactor int he metabolism of DNA, fatty acids, and amino acids. So without B12, you cannot create any new DNA and you cannot metabolism either fatty acids or amino acids.
This is what most people think of when they think B12. But B12 has many more functions beyond acting as a metabolic cofoactor.
B12 is needed for the synthesis of myelin; the sheath covering of your nerve cell endings.
Without B12, you can’t make enough myelin, which means you can’t construct new nerve pathways in the brain.
Does B12 give you energy?
So this brings us to the question at hand – does B12 give you energy?
The answer is yes, in a way.
As B12 is needed for the metabolism of several different nutrients, having low B12 levels will invariably lead to reduced food metabolism, which will in turn lead to lower energy levels.
People experience this in different ways. Some people who are running on a serious B12 deficiency will feel like they lack strength; maybe they notice their numbers in the gym are decreasing. Others feel cognitively lethargic.
B12 deficiency is normally something that people only notice when it is already quite severe.
That said, the good news is that B12 deficiencies are extremely rare in the developed world (as it is added to everything). It is also very easy to rectify a B12 deficiency; you just have to take a potent multivitamin and you’re good!
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