As they add on energy rich molecules, they become nucleosides. Nucleosides are made a little more complex and energy rich with the addition of one or more molecules. Now, they are called nucleotides. Nucleotides and nucleosides are not regarded as dietary essential like vitamins. Nucleotides, as coenzymes, supercharge normal metabolism.
Nucleotides are energy rich molecules because they contain nucleosides.
This energy is what your body uses for all metabolic, growth, regenerative and reproducing processes. So you can see how important it is to have enough energy available in the form of these building blocks. Stomach lining - replaces itself once per hour. Intestinal lining - replaces itself every four days. Blood - replaces itself every one hundred twenty days.