Vitamin A: night blindness, corneal sicca, dry skin, desquamation
Vitamin B1: neuritis, beriberi, loss of appetite, indigestion, growth retardation
Vitamin B2: oral ulcers, dermatitis, angular stomatitis, glossitis, cleft lip, keratitis, etc.
Vitamin B12: megaloblastic anemia
Vitamin C: scurvy , decreased resistance
Vitamin D: rickets in children, osteoporosis in adults
Vitamin E: infertility, miscarriage, muscular atrophy, etc.