You should avoid traditional ceviche made with raw fish or shellfish during pregnancy because it is considered unsafe. Cooked, pregnancy‑safe versions of ceviche are fine as long as the seafood is fully cooked and low in mercury.

What ceviche is

  • Ceviche is usually made with raw fish or shellfish marinated in lemon or lime juice plus salt, onions, and herbs.
  • The citrus marinade changes the texture and color of the seafood but does not truly cook it or reliably kill bacteria or parasites.

Why raw ceviche is risky in pregnancy

  • Pregnancy slightly weakens the immune system, so foodborne infections like Listeria, Salmonella, and E. coli can be more severe and last longer.
  • Raw or undercooked seafood can carry harmful bacteria and parasites that increase the risk of serious illness, dehydration, and, in rare cases, complications for the baby.

What experts and guides generally recommend

  • Medical and pregnancy‑nutrition sources say ceviche made with raw seafood is not recommended in pregnancy and is best postponed until after birth (and after breastfeeding if advised by your provider).
  • Guidance is similar to advice about raw sushi: avoid all raw fish and shellfish, and choose thoroughly cooked seafood instead.

Pregnancy‑safe ways to enjoy ceviche flavors

  • Use fully cooked seafood (baked, boiled, grilled, or steamed to at least 145°F / 63°C) and then marinate it in citrus with herbs and vegetables; this gives a ceviche‑like dish without the raw‑seafood risk.
  • You can also make “ceviche” with cooked shrimp, canned low‑mercury fish (like light tuna or salmon), or vegetarian options (mushrooms, hearts of palm) plus lime, cilantro, onion, tomato, and avocado.

If you already ate ceviche while pregnant

  • A one‑time exposure does not automatically mean something will go wrong; many people are fine, but there is a higher risk than with cooked foods.
  • Call your healthcare provider or maternity triage promptly if you develop symptoms like nausea, vomiting, diarrhea, fever, stomach cramps, or flu‑like feelings in the next hours to days, or if you feel worried and want personalized advice.

TL;DR: For pregnancy, stick to cooked or vegetarian “ceviche” and skip any version with raw seafood until after the baby is born.

Information gathered from public forums or data available on the internet and portrayed here.