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.