Name and explain three diseases caused by lack of proper nutrition?

Is this ur Homework? LOL...This looks like someone is trying to get 546 doctors to do somebody's homework... LOL. You have some good answers listed here already but I will add one from ophthalmology. Blindness can come from lack of nutrition. Vitamins and antioxidants help all of us... What are you taking.
Scurvy.Goiter,Anemia. THERE ARE MANY BUT THREE ARE SCURVY CAUSED BY DEFICIENCY OF VITAMIN C GOITER WHICH IS ENLARGEMENT OF THYROID GLAND DUE TO DEFICIENCY OF IODINE ANEMIA CAN BE CAUSED DY NOT ENOUGH IRON OR B12 OR FOLIC ACID IN THE DIET.
See below. Night blindness - vitamin a deficiency. Beriberi - vitamin b1 deficiency. Rickets, vitamin d deficiency. See this site for more http://www.Ncbi.Nlm.Nih.Gov/pubmedhealth/pmh0001441/.