User:Lucialauteria/sandbox

Research on vitamin B-12 has been well documented. For example, it is known that there is a relationship between age and the deterioration of vitamin B-12 .Earlier detection of vitamin B-12 deficiency may prevent the development of serious clinical symptoms involving neurological functioning. Poor vitamin B-12 status is associated with anemia, peripheral neuropathy, and cognitive impairment. Vegetarians can get a vitamin B-12 supplement derived from yeast.

Flatley J., Garner C., Al-Turki M., Olpin S., Barker A., and Powers H. Determinants of urinary methylmalonic acid concentration in an elderly population in the United Kingdom. Am J Clin Nutr 2012;95:686–93.

Stabler S., and Allen R.Vitamin B12 Deficiency as a Worldwide Problem. Annu. Rev. Nutr 2004; 24: 299–326.

Armstrong B., Davis R., Nicol D., Merwyk A., and Larwood C.Hematological, Vitamin B12 and folate studies on Seventh-day Adventist Vegetarians. Am J Clin Nutr 27: 7 12-718, 1974.