The major preventable cause of mental retardation worldwide is _____ deficiency.

Question

Quizplus · Accepted Answer

Iodine deficiency is the major preventable cause of mental retardation worldwide, especially in areas where the soil is iodine-poor and in populations with limited access to iodine-rich foods such as seafood and iodized salt. Folate deficiency can lead to fetal abnormalities and neural tube defects, but it is not a major cause of mental retardation. Iron deficiency can lead to cognitive impairments, but it is not a major cause of mental retardation. Vitamin A deficiency can cause visual impairments, but it is not a major cause of mental retardation.

The Major Preventable Cause of Mental Retardation Worldwide Is _____