Can prenatal nitrate exposure from water and food affect pregnancy outcomes?
Possibly. A 2025 scoping review found prenatal nitrate and nitrite intake from drinking water and food may affect maternal and child health outcomes.
What's actually in it
Nitrates and nitrites enter drinking water from agricultural runoff (fertilizers) and are also found in processed meats. In the body, nitrates can convert to nitrites and then to nitrosamines, which are potentially harmful. Pregnant women on well water or in farming areas face the highest exposure.
What the research says
A 2025 scoping review in Int J Hyg Environ Health examined how prenatal nitrate and nitrite intake affects pregnancy. The evidence suggests possible associations with adverse birth outcomes and maternal health effects, though more human studies are needed.
Test well water for nitrates. Use a water filter rated for nitrate removal if levels are elevated. Limit processed meats during pregnancy.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Prenatal nitrate and nitrite intake in mammals: A scoping review of effects and associations with pregnancy and maternal and child health. | Int J Hyg Environ Health | 2025 |
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