What are some diseases caused by nutritional deficiencies?

Scurvy--lack of vitamin C

Beriberi --lack of thiamine

Pellagra--Niacin (vitamin B) deficiency.

Rickets-- Vitamin D deficiency

Goiter--Iodine deficiency

Marasmus and Kwashiorkor--Protein deficiency

Anemia--Iron deficiency.

I'm sure there are many others.