Key takeaways: The CDC says no safe blood lead level in children has been identified. The most common source in the U.S. is lead-based paint and dust in homes built before 1978. Other sources include water, soil, some imported products, and certain spices and foods. Blood lead testing is often done at 12 and 24 months. Ask your doctor whether your baby should be tested.
Lead can harm a child’s developing brain, even at low levels. The good news: exposure is preventable.
Why Lead Is Harmful
Lead can affect learning, attention, and behavior. Effects may not be visible, so testing is important.
Common Sources
- Lead-based paint in homes built before 1978, especially peeling paint and dust from windows during renovations.
- Soil near older homes or busy roads.
- Water from lead pipes or plumbing.
- Imported products: some ceramics, cosmetics (such as kohl or sindoor), traditional remedies, and toys.
- Some spices and foods: recalls have occurred, including cinnamon applesauce pouches in 2023.
- Jobs and hobbies of household members (construction, auto repair, fishing weights, stained glass).
Testing
- Medicaid requires blood lead testing at 12 and 24 months.
- Other children may be tested based on risk factors and local guidance.
- The CDC uses a blood lead reference value of 3.5 micrograms per deciliter to identify children with higher levels than most.
Lowering Your Baby’s Risk
- Check your home: if built before 1978, get it tested before renovating.
- Use lead-safe practices during renovation, and keep babies away.
- Clean regularly: wet-mop floors and wipe windowsills.
- Wash hands and toys often.
- Use cold tap water for drinking and formula, and run it before use if pipes may contain lead. Consider testing your water.
- Avoid imported products that may contain lead.
- Check recalls for foods and toys.
- Feed a healthy diet with iron, calcium, and vitamin C, which may reduce lead absorption.
The Bottom Line
Lead exposure is preventable. Know the common sources, keep your home lead-safe, and ask your doctor about testing.
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Sources
- Centers for Disease Control and Prevention. Childhood lead poisoning prevention; blood lead reference value. https://www.cdc.gov/lead-prevention
- Council on Environmental Health. Prevention of childhood lead toxicity. Pediatrics. 2016;138(1):e20161493.
- U.S. Environmental Protection Agency. Protect your family from sources of lead. https://www.epa.gov/lead
- U.S. Food and Drug Administration. Lead in food and foodwares; recalls. https://www.fda.gov
This article is for general education and is not a substitute for individualized medical advice. Always talk with your baby’s health care provider or your own provider about your specific situation. If you think your baby or you may have a medical emergency, call 911.
