13 Sep 2007
Protein is the group name to designate the principal nitrogen constituents of the protoplasm of all plant and animal tissues. Proteins are necessary for tissue synthesis and regulation of certain bodily functions.
However, to say that proteins are more important than other nutrients is not appropriate. An inadequate dietary have serious consequences. Proteins are complex structures made up of amino acids. The type of amino acids vary with each protein. However, nitrogen is always present. Carbohydrates and fats do not contain nitrogen.