Symptoms of Vitamin B deficiency

Vitamin B group is a water-soluble vitamin, but also an essential vitamin for human body. Vitamin B group includes vitamin B1, B2, B6, B12 and other components. Lack of vitamin B group can lead to mental fatigue, appetite loss, anemia, beriberi, aphtha, insomnia, vertigo and other diseases. Symptoms can be improved by supplementing complex vitamins.