Vitamin B12 or Cobalamin.
Vitamin B12 is responsible for the functionality of the nervous system, for the production of red blood cells and for metabolizing fats, proteins, and carbohydrates as it contains important beneficial mineral elements. Beyond that, antiaging with vitamin B12 helps to improve memory and concentration.
A diet lacking in cobalamin can result in an anemia, lethargy, a decrease in appetite, and some mental disorders. Therapeutically, it has been used to treat fatigue, insomnia, depression, and poor memory.
Foods that contain vitamin B12 include: liver, meat, kidneys, milk, eggs, bananas, and peanuts.
The recommended daily allowance of vitamin B12 for adults is 3mcg.