Lack of vitamins Pay attention to the symptoms of vitamin A deficiency: deep and obvious white lines on nails, dry hair, rough skin, poor memory, irritability and insomnia. Vitamin B 1 deficiency: allergic reaction to audio, intermittent sore leg. Vitamin B2 deficiency: the corners of the mouth are broken and ulcerated, and various skin diseases appear, with burning sensation in hands and feet. Excessive sensitivity to light. Vitamin B3 deficiency: red and swollen tongue, bad breath, oral ulcer and depression. Vitamin B6 deficiency: thick tongue coating, swollen lips, excessive head and dry oral mucosa. Lack of vitamin B 12: The movement is easy to be unbalanced, and the body sometimes has intermittent pain in an uncertain position, and the fingers and toes are sore. Lack of vitamin C: the wound is not easy to heal, the body is weak, the teeth are bleeding, and the tongue coating is thick. If you find the above phenomenon, it may be related to vitamin deficiency, but you must consult a doctor before taking it. Taking vitamins without permission is harmful to your health. (four seasons)