Which listed products contain teratogens?

Teratogens are substances that can cause birth defects or developmental abnormalities in a fetus. From the listed groups, the items that can contain known teratogens are:

• cat litter, pesticides, lead paint

Explanation:

• Cat litter: Can expose pregnant people to Toxoplasma gondii (through cat feces), an infectious agent that can cause severe fetal harm (not a chemical teratogen but an infectious teratogen). Also some litters may contain chemicals (rare) but the main risk is toxoplasmosis.
• Pesticides: Many pesticides include chemicals (organophosphates, carbamates, certain herbicides) associated with developmental toxicity and birth defects in animal and some human studies.
• Lead paint: Lead is a well‑established developmental neurotoxin/teratogen that can cause cognitive deficits and other problems in fetuses and young children.

The other groups (polyester, vaccines, soda; dog food, cooked shrimp, electronics; microwave ovens, coffee, detergent) do not as a group contain established teratogens. Some items can pose risks in specific circumstances (e.g., certain unpasteurized foods or high levels of methylmercury in some seafood, excessive caffeine in pregnancy, or contaminated products), but they are not broadly classified as teratogens like lead or many pesticides.

If you're concerned about pregnancy exposure, discuss specific products and exposures with an obstetrician or other qualified healthcare professional.