What are the major teratogens during the foetal period?

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Quizplus · Accepted Answer

The major teratogens during the foetal period are substances or external factors that can cause physical, cognitive or behavioural abnormalities in the developing foetus. Malnutrition, specifically deficiencies in important nutrients such as folic acid, can contribute to neural tube defects and other growth abnormalities. Tobacco use during pregnancy can lead to low birth weight, premature birth, and developmental delays. While lack of maternal sleep and exercise, excessive maternal weight gain, and maternal age can have negative effects on pregnancy outcomes, they are not considered major teratogens. Sugar and starch are also not considered major teratogens.

What Are the Major Teratogens During the Foetal Period