Question

why do people living in coastel area never suffer from goitre?​

Answer 1

Answer:

Because they eat sea food and as it contains salt, they never suffer from goitre.

Answer 2

This is because goitre is caused due to the deficiency of iodine in the diet and people living in coastal areas mainly feed on sea foods which contain sufficient amount of iodine. So, they usually not suffer from goitre.