Answer:
Goiter
Explanation:
Phenylketonuria, Sickle-cell anemia, Tay-sachs disease are human disorders that are caused by heredity. Goiter, which must have been misspelt as “Gaiter” in the question is an example of human disorder that is caused by dietary deficiency.
Goiter is a condition in which the thyroid gland becomes swollen or enlarged. Goiter is usually caused as a result of iodine deficiency in the diet a person gets.