Vitamin B12

Alexandra Mederos

Functions of Vitamin B12

  • helps produce red blood cells
  • builds proteins in body
  • speeds up metabolism
  • maintains Central Nervous System

Sources of Vitamin B12

Why Is B12 So Essential?

Vitamin B12 is the most important nutrient because it most importantly helps produce red blood cells. Blood plays a vital role in our lives, and without B12 to keep producing red blood cells we would have no blood. Therefore none of our body would function!

Dr. Bruce Bistrian, a chief of clinical nutrition at Harvard-affiliated Beth Israel Deaconess Medical Center, says that if a vitamin B12 deficiency is left untreated that it can cause severe blood diseases and neurologic problems.


"Vitamin B12 Deficiency Can Be Sneaky, Harmful - Harvard Health Blog." Harvard Health Blog RSS. N.p., 10 Jan. 2013. Web. 15 Jan. 2015.

"Are You Getting Enough of This Vitamin?" Are You Getting Enough of This Vitamin? N.p., n.d. Web. 14 Jan. 2015.

"Vitamin B12 Sources and Functions." Vitamin B12 Sources and Functions. N.p., n.d. Web. 14 Jan. 2015.