Processed meats
Nitrites, high-temperature cooking
🟡 Several human studies point the same way, with a plausible biological mechanism, but the evidence is not yet conclusive.
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In brief
processed meat: this page reviews Processed meats (Nitrites, high-temperature cooking) — documented mechanism, everyday exposure situations and possible alternatives. Level of evidence: Probable.
- Where it's found
- Industrial ham, sausages, bacon, smoked meats, pâtés.
- Suspected mechanism
- Nitrites and compounds produced during cooking promote oxidative stress; several studies link high consumption to lower sperm quality.
- Suggested alternative
- Cut down to one or two servings a week and supplement with legumes, eggs, or fish.
- Source
- IARC (International Agency for Research on Cancer) (processed meats); EARTH studies on sperm and diet.
Frequently asked questions
Processed meats: how is it linked to infertility?
Nitrites and compounds produced during cooking promote oxidative stress; several studies link high consumption to lower sperm quality.
Where is Processed meats found in everyday life?
Industrial ham, sausages, bacon, smoked meats, pâtés.
How can exposure to Processed meats be reduced?
Cut down to one or two servings a week and supplement with legumes, eggs, or fish.
What is the level of evidence for Processed meats?
Probable. Several human studies point the same way, with a plausible biological mechanism, but the evidence is not yet conclusive.
Map your everyday exposures in about ten minutes.
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Related factors
Including a factor does not mean it causes infertility: it is simply worth monitoring, depending on its level of evidence.
Content last updated: September 14, 2026