by Maridel Villapando
Vitamin B12 is a water-soluble vitamin found naturally in foods such as poultry, meat, and fish. Additionally, it is located in every cell of the human body and is required for proper red blood cell formation, cellular metabolism, energy production, DNA synthesis, and the generation and control of the DNA for neurological functions. Deficiencies of vitamin B12 can lead to weight loss, fatigue, anemia, and loss of appetite.