Vitamins are the most indispensable nutrients in the human body and have an indispensable and important position. If the lack of vitamins, the body will appear a variety of symptoms, we will look at the body deficiency of vitamin symptoms are what. Vitamin A deficiency: rough skin, itching, nails appear deep white lines, dry hair, memory loss, mood irritability and insomnia, dry conjunctiva of the eye, urinary tract stones. Should eat more beef liver, eggs, red and yellow vegetables, fruits and cod liver oil. Vitamin B1 deficiency: allergy to sound, allergic reaction to audio, intermittent soreness in the lower legs, foot disease, neurodermatitis, etc. Should eat more beans, cereals, hard fruits, fruits, milk and green leafy vegetables. Vitamin B2 deficiency: inflammation of the corners of the mouth, various skin diseases such as dermatitis, scrotal inflammation, burning sensation in the hands and limbs, over-sensitive reaction to light, etc. You should eat more liver, milk, eggs, beans and green vegetables. Vitamin B3 deficiency: thick tongue, puffy lips, sore tongue, sore lips, extra scalp, dry oral mucous membrane dewlap. More yeast should be consumed. Vitamin B12: Easy to lose balance in movement, intermittent pain in indeterminate position, tingling sensation in fingers and fingers, should eat more animal liver and yeast.