All of the vitamins are necessary for a healthy functioning human body.

Therefore you have to get vitamins into your body through your diet and routine. Important Vitamins to Take - The Keys to Maintaining Your Health What are the most important vitamins to take. In fact, that's part of the definition of what a vitamin actually is. A vitamin is also a compound that cannot be produced by your body, or at least not in sufficient quantities. A vitamin is an organic compound that is required by your body to be healthy.

Others are firm believers of only one specific vitamin, or maybe two.

Anybody that is trying to tell you that only one or a handful of the 13 vitamins is necessary, or should be taken in huge quantities compared to the others, is simply wrong. So which are the important vitamins to take. Some people claim that certain vitamins are more important than others. A deficiency in any single vitamin, whichever one that may be, can directly lead to various illnesses and health problems.

That's a bit of a trick question, because truthfully, they are all important vitamins to take.