Does Processed meats cause infertility?

Probable. Several human studies point the same way, with a plausible biological mechanism, but the evidence is not yet conclusive. Nitrites and compounds produced during cooking promote oxidative stress; several studies link high consumption to lower sperm quality.

Processed meats

Nitrites, high-temperature cooking

Evidence level : Probable Cured meatsMechanism : Dietary / inflammatory burden

🟡 Several human studies point the same way, with a plausible biological mechanism, but the evidence is not yet conclusive.

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.

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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.

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Content last updated: September 14, 2026