Nature's Bounty Vitamin B12 Vitamin B is not easily absorbed by the human body under normal circumstances, Nature's Bounty has added prote to greatly improve the absorption rate of B. A small pill, a lot of energy! Relieve fatigue, eliminate the fire, promote digestion, improve halitosis, relieve alcohol protect the liver, improve attention! Suitable for all kinds of people! One bottle of 300 pills, one pill a day!