Foods to Avoid (or Limit) During Pregnancy

Listeria risk

Listeria can cross the placenta. The fix is usually heat — steaming hot, fully cooked, freshly prepared.

• Brie and CamembertLimitSoft mold-ripened cheeses — pasteurized versions OK; unpasteurized AOC versions carry listeria risk.
• Cured Meats and CharcuterieLimitProsciutto, salami, chorizo: cured but not cooked — carries listeria and toxoplasma risk.
• Deli MeatLimitListeria risk — heat to steaming if eating; pre-packaged turkey is generally lower-risk than the deli counter.
• Hot DogsLimitSame listeria concern as deli meat — heat to steaming hot before eating.
• Liver and Organ MeatLimitLiver is high in preformed vitamin A (retinol) — large amounts can cause birth defects. Small amounts are fine.
• Raw FishAvoidSame listeria + parasite concerns as raw sushi — avoid sashimi, ceviche, poke, raw oysters.
• Raw OystersAvoidRaw oysters carry vibrio, listeria, and norovirus risk. Cooked oysters (in stuffing, on the grill) are safe.
• Smoked Salmon / LoxLimitCold-smoked salmon (lox) carries listeria risk; hot-smoked or fully cooked is safer.
• Soft CheeseLimitPasteurized soft cheeses are fine; unpasteurized brie, feta, queso fresco can carry listeria.
• SushiLimitCooked sushi (eel, shrimp tempura, vegetable rolls) is fine; raw fish carries listeria and parasite risk.
• Unpasteurized JuiceAvoidFresh-pressed juice from unfamiliar sources can carry E. coli + listeria; check pasteurization status.
• Unpasteurized MilkAvoidRaw milk carries listeria, salmonella, E. coli, and brucellosis risk — FDA and CDC recommend complete avoidance.

Mercury risk

Methylmercury affects developing nerves. Choose lower-mercury fish and watch portion size.

• High-Mercury FishAvoidFDA "Choices to Avoid" list: shark, swordfish, king mackerel, tilefish, bigeye tuna, marlin, orange roughy.
• TunaLimitMercury concern — light tuna 2–3 servings/week is generally fine; albacore + bigeye should be limited.

Bacteria & parasite risk

Thorough cooking and good kitchen hygiene neutralize most of this.

• Raw EggsAvoidSalmonella risk — avoid raw cookie dough, homemade Caesar dressing, runny yolks. Pasteurized eggs are an exception.
• Raw SproutsAvoidAlfalfa, clover, mung bean sprouts: FDA recommends avoiding raw during pregnancy due to E. coli and salmonella outbreaks.

Caffeine

Not off-limits — most guidance caps total caffeine around 200 mg/day.

• CaffeineLimitUnder 200mg/day (≈one 12oz coffee) is the most widely cited limit; some research argues for stricter limits.
• Green TeaLimitCaffeine + folate-binding catechins — moderate consumption is fine, but counts toward your 200mg caffeine cap.
• KombuchaLimitTrace alcohol from fermentation + caffeine from tea base; most providers recommend caution or avoidance.

Other cautions

• AlcoholAvoidNo known safe threshold. ACOG, NHS, WHO, and CDC all recommend complete avoidance during pregnancy.
• LicoriceLimitBlack licorice contains glycyrrhizin; EFSA and Finnish research found heavy use linked to adverse pregnancy outcomes.
• PapayaLimitUnripe papaya contains latex which can stimulate contractions; ripe papaya in moderation is fine.
• Red Raspberry Leaf TeaLimitTraditional pregnancy tea; mixed evidence — generally used only after 32 weeks, not throughout pregnancy.