<span>The
building blocks of protein are amino acids. Amino acids produced by the cells
are synthesized in order to produce proteins. Vitamin B9(Folate) and Vitamin
B12(Cobalamin) are the two B-vitamins needed in amino acid synthesis. These
can be taken through dietary supplements.</span>
Are u talking about the protiens you use like when you are trying to loose wait or are you talking about something else using protiens.