Evidence-based crab and lobster safety guide. FDA mercury data, safe preparations, and imitation crab (surimi) guidance.
Yes — crab is classified by the FDA as a 'best choice' seafood for pregnancy. Low mercury (0.065 ppm per FDA data), high in zinc and selenium. Cook to 145°F. Imitation crab (surimi) is pre-cooked during manufacturing and generally considered safe. No raw crab.
Written by Ash K · Last updated: June 2026 · Sources cited below
Crab is considered safe during pregnancy when fully cooked. The FDA classifies most crab species as "best choice" or "good choice" — low mercury, high protein, rich in omega-3s and zinc.
Cook all crab to 145°F (63°C) internal temperature. No raw crab, no crab sashimi, no cold crab that hasn't been cooked first. Imitation crab (surimi) is also considered safe — it's fully cooked during manufacturing.
Key Takeaway: According to FDA guidelines, cooked crab (king crab, snow crab, blue crab, Dungeness) is considered safe during pregnancy at 2–3 servings per week. Mercury levels are low (0.065 ppm average). Cook to 145°F. Avoid raw crab entirely. Imitation crab (surimi) is also considered safe — it's pre-cooked processed fish.
| Crab Type | Mercury (ppm) | FDA Category |
|---|---|---|
| King crab | 0.027 | Best Choice ✅ |
| Snow crab | 0.040 | Best Choice ✅ |
| Blue crab | 0.065 | Best Choice ✅ |
| Dungeness crab | 0.065 | Best Choice ✅ |
| Imitation crab (surimi) | Very low | Best Choice ✅ |
| Nutrient | Per 3 oz cooked crab | Pregnancy benefit |
|---|---|---|
| Protein | 16–20g | Fetal tissue growth |
| Zinc | 6.5mg | Immune function, cell division |
| Omega-3 DHA | 200mg | Brain development |
| Vitamin B12 | 9mcg | Nervous system development |
| Selenium | 40mcg | Thyroid, antioxidant |
| Copper | 0.6mg | Iron metabolism |
Note: Crab is exceptionally high in zinc — a single serving provides nearly 60% of pregnancy daily needs (11mg). Zinc is critical for fetal immune development, DNA synthesis, and cell division. Few foods match crab's zinc density per serving.
Crab and Shellfish — Safe vs Unsafe Preparations
All crab must reach 145°F internal temperature. In practice: the shell turns bright red/orange, and the meat is opaque white throughout with no translucent areas.
Whole crab: Boil or steam 15–20 minutes per pound until shell is uniformly red.
Crab legs: Steam 5–7 minutes until heated through and meat is opaque.
Crab cakes: Bake at 375°F for 20–25 minutes or pan-fry until internal temp reaches 145°F.
Warning: Avoid raw crab preparations: raw crab sushi, crab ceviche, or drunken crab (raw crab marinated in alcohol). Alcohol marinade does not kill pathogens. All crab must be heat-cooked to 145°F during pregnancy.
Mercury Levels — Best to Worst Fish for Pregnancy
Imitation crab (surimi) is made from processed, fully cooked whitefish (usually pollock). It is considered safe during pregnancy — the cooking happens during manufacturing. This makes California rolls (which use imitation crab) one of the safest sushi options during pregnancy.
Check the label: if it says "imitation crab" or "surimi," it's pre-cooked. If it says "crab" or "crabmeat," it's real crab and needs the 145°F cooking requirement.
Bottom Line: Cooked crab is considered safe and nutritionally valuable during pregnancy per FDA guidelines. All common species (king, snow, blue, Dungeness) are low mercury. Cook to 145°F. Imitation crab is also considered safe. Eat up to 2–3 servings per week alongside other low-mercury seafood like shrimp and salmon.
Can you eat crab while pregnant?
According to FDA guidelines, cooked crab is considered safe during pregnancy. All common species are in the "best choice" low-mercury category. Cook to 145°F internal temperature. Eat up to 2–3 servings per week.
Is imitation crab safe during pregnancy?
Yes. Imitation crab (surimi) is fully cooked during manufacturing and is considered safe. It's made from processed whitefish, not actual crab, and has very low mercury.
Can I eat crab legs while pregnant?
Yes — steam or boil until the shell is red and meat is opaque white throughout (145°F). King crab and snow crab legs are both low mercury and considered safe.
Is crab high in mercury?
No. Most crab species have mercury levels well below 0.1 ppm — in the FDA's "best choice" category. King crab (0.027 ppm) is particularly low.
This tool is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your healthcare provider with questions about your health.