Can You Eat Crab Legs While Pregnant? Safety and Benefits

Yes, you can eat crab legs while pregnant as long as they are fully cooked and consumed in moderation. Crab is a low-mercury seafood that provides protein, omega-3 fatty acids, and essential nutrients for fetal development. The U.S. Food and Drug Administration (FDA) and the American College of Obstetricians and Gynecologists (ACOG) recommend that pregnant women eat 8–12 ounces of low-mercury seafood per week, and crab fits into that category. Avoid raw or undercooked crab to prevent foodborne illness. For the next step, read our overview of Is It Safe to Lose Weight While Pregnant.

Is Crab Safe During Pregnancy?

Crab is considered safe during pregnancy when it is thoroughly cooked. The main concern with seafood during pregnancy is mercury, but crab is generally low in mercury. According to the Mayo Clinic, seafood that is low in mercury can be a regular part of a healthy pregnancy diet. The FDA lists crab among the "best choices" for seafood, meaning it is safe to eat 2–3 servings per week.

However, not all crab dishes are safe. Avoid raw crab, such as in sushi or ceviche, because it may contain harmful bacteria or parasites. Also, be cautious with crab that is high in sodium, such as some canned or processed crab products, as excessive sodium can increase blood pressure.

Nutritional Benefits of Crab Legs During Pregnancy

Crab legs are a nutrient-dense food that can support both maternal health and fetal development. Key nutrients include: For the next step, read our overview of How Soon Can a Goat Get Pregnant After Giving Birth.

• Protein: Essential for the growth of fetal tissues, including the brain, and helps with uterine and breast tissue growth.
• Omega-3 fatty acids: Important for fetal brain and eye development. Crab contains both EPA and DHA, though in smaller amounts than fatty fish like salmon.
• Vitamin B12: Supports the development of the baby's nervous system and helps prevent neural tube defects when combined with folate.
• Zinc: Aids in cell growth and DNA synthesis, crucial during pregnancy.
• Selenium: An antioxidant that protects cells from damage and supports thyroid function.
• Copper: Helps form red blood cells and supports the baby's heart and blood vessels.

A 3-ounce serving of cooked crab provides about 16–20 grams of protein, depending on the species, and is low in saturated fat. It is also a good source of phosphorus, which is important for bone health.

How Much Crab Can You Eat While Pregnant?

The FDA and EPA recommend that pregnant women eat 8–12 ounces (225–340 grams) of low-mercury seafood per week. This includes crab. A typical serving of crab legs is about 3–4 ounces, so you can safely enjoy crab legs 2–3 times per week as part of a varied seafood intake. Our breakdown of Can I Eat a Turkey Sandwich While Pregnant? Safety Guide covers the related details.

It is important to vary your seafood choices to get a range of nutrients and minimize any potential exposure to contaminants. Other low-mercury options include shrimp, salmon, pollock, tilapia, and canned light tuna.

Risks and Precautions When Eating Crab Legs During Pregnancy

While crab is generally safe, there are some risks to be aware of:

• Foodborne illness: Raw or undercooked crab can harbor bacteria like Vibrio or parasites. Always cook crab to an internal temperature of 145°F (63°C) until the flesh is opaque and flakes easily.
• Allergies: Shellfish allergy is common. If you have a known allergy to crab or other shellfish, avoid it during pregnancy. Allergic reactions can be severe and may pose risks to both mother and baby.
• Sodium content: Some crab products, especially imitation crab and canned crab, can be high in sodium. High sodium intake can contribute to high blood pressure and swelling. Choose fresh or frozen crab without added salt when possible.
• Cholesterol: Crab contains dietary cholesterol, but for most people, dietary cholesterol has a smaller effect on blood cholesterol than saturated and trans fats. Still, if you have high cholesterol or other heart conditions, consult your healthcare provider.

If you experience symptoms of a foodborne illness, such as vomiting, diarrhea, fever, or abdominal pain, contact your healthcare provider promptly, as dehydration can be dangerous during pregnancy.

Can You Eat Crab Legs in Each Trimester?

Yes, crab legs can be eaten in all trimesters as long as they are fully cooked. There is no trimester-specific restriction. The nutrients in crab, such as protein and omega-3s, are beneficial throughout pregnancy. However, if you have morning sickness in the first trimester, the smell or texture of crab might be off-putting; listen to your body and choose other protein sources if needed.

Alternatives to Crab Legs During Pregnancy

If you prefer to avoid crab or have an allergy, there are many other low-mercury seafood options that provide similar benefits:

• Salmon: Rich in omega-3s and vitamin D.
• Shrimp: Low in mercury and high in protein.
• Pollock: Mild flavor and low mercury.
• Tilapia: Low mercury and versatile.
• Canned light tuna: Safe in moderation (up to 12 ounces per week).

For non-seafood alternatives, lean meats, poultry, eggs, beans, and tofu can provide protein and other nutrients.

Frequently Asked Questions

Is crab high in mercury?

No, crab is generally low in mercury. The FDA categorizes crab as a "best choice" seafood, meaning it has the lowest mercury levels. However, king crab may have slightly higher mercury than other crab species, but still within safe limits when consumed in recommended amounts.

Can I eat imitation crab while pregnant?

Imitation crab is typically made from surimi, a processed fish product, and is usually cooked. It is safe to eat in moderation, but check the label for sodium content and any allergens. It does not provide the same nutritional benefits as real crab.

What about crab cakes or crab bisque?

Crab cakes and bisque are safe if the crab is fully cooked and the dish is heated to a safe temperature. Be mindful of added fats and sodium in these preparations.

Can I eat crab sushi while pregnant?

No, avoid raw crab sushi. Only eat crab that is fully cooked. Some sushi restaurants offer cooked crab rolls, which are safe if prepared properly. For the next step, read our overview of Can You Eat Raw Sushi When Pregnant? Safety Guide.

What are the signs of a shellfish allergy?

Symptoms can include hives, itching, swelling of the lips or throat, difficulty breathing, and dizziness. If you experience these after eating crab, seek medical attention immediately.

Sources

• Pregnancy and fish: What's safe to eat?
• THE PREGNANT WOMAN'S GUIDE TO EATING SEAFOOD
• Eating Seafood During Pregnancy