Can You Eat Cod During Pregnancy? | Safe Seafood Guide

Yes, cod is generally considered a safe, low-mercury fish to eat during pregnancy when it’s fully cooked — the FDA classifies it as a “Best Choice”.

You’ve probably heard mixed messages about fish during pregnancy. One headline warns about mercury, and the next pushes omega-3 benefits for the baby’s brain. It’s easy to start wondering whether any seafood is worth the worry.

Here is one option you can feel good about putting back on the menu: cod. This lean white fish is classified by the FDA and EPA as a “Best Choice” for pregnant people. When cooked thoroughly, it delivers solid nutrition without the mercury concerns tied to larger predatory species.

Cod’s Mercury Ranking Compared To Other Fish

Fish absorb methylmercury from the water they live in, and larger fish that eat other fish tend to accumulate more over time. Cod is not a large predatory fish, so its mercury load stays low.

The FDA’s official chart places cod in the “Best Choice” category. Some consumer seafood guides report cod mercury levels at roughly 0.111 parts per million as of recent data — a fraction of the levels found in species like swordfish or shark.

Here is how cod compares to other common seafood options:

As the table shows, cod sits comfortably among the lowest-mercury fish available, making it a straightforward choice for pregnancy meal planning.

Why The Confusion About Fish Lingers

It’s tempting to lump all fish together when a blanket “avoid it” warning feels safer than sorting through fine print. The nuance is that different species carry very different mercury loads. Failing to distinguish between them means missing out on real nutritional benefits.

Moderate scientific evidence reviewed by the FDA suggests that eating fish during pregnancy can support a baby’s cognitive development. The nutrients worth prioritizing include:

• DHA and Omega-3s: These fatty acids are structural components of the brain and retina. Low-mercury fish like cod provide them without the methylmercury risk of larger species.
• High-Quality Protein: Lean protein from fish supports maternal tissue growth, blood volume expansion, and steady energy throughout the day.
• Vitamin D and B Vitamins: Cod offers nutrients that help regulate calcium absorption and support red blood cell formation during pregnancy.
• Lower Accumulative Risk: Choosing species from the “Best Choice” category keeps your weekly mercury intake well within the FDA’s reference dose of 0.1 micrograms per kilogram of body weight per day.

The goal during pregnancy isn’t to avoid fish. It’s to choose the right fish — and cod fits that description well.

How To Safely Prepare Cod While Pregnant

Even with a low mercury level, safety depends on how the fish is handled and cooked. Raw or undercooked seafood carries risks of foodborne illness that affect pregnant people more seriously.

The NHS recommends avoiding raw fish entirely during pregnancy, and cod must be fully cooked to eliminate harmful bacteria and parasites. The NHS outlines this clearly on its page about avoiding raw and smoked fish. Cod should reach an internal temperature of 145°F and flake easily with a fork.

It’s also important to skip cold-smoked or cured cod products, such as lox-style preparations. These ready-to-eat items can carry listeria bacteria, which poses a higher risk during pregnancy. Stick to fresh or frozen cod that you cook yourself, and you’re in good shape.

How Much Cod You Can Eat Per Week

The FDA recommends 2 to 3 servings of low-mercury fish per week, totaling 8 to 12 ounces. One serving is roughly the size and thickness of your palm. Within this range, you have flexibility to include cod alongside other “Best Choice” options.

Here are the factors that help determine where you fall within that range:

1. Your Total Weekly Fish Intake: Keep your combined servings of low-mercury fish within the 8 to 12 ounce guideline. Spreading intake across the week is better than eating it all in one day.
2. Variety Reduces Risk: Don’t rely solely on cod. Rotating in salmon, tilapia, pollock, or sardines ensures a broader nutrient profile and lower cumulative mercury exposure.
3. Mercury Clearance Rate: Methylmercury has a half-life of roughly 50 days in the body. Sticking to the recommended serving limits keeps your levels well below the safety threshold.
4. Preparation Method: Baked, grilled, or pan-seared cod are great choices. Heavy breading or deep frying adds unnecessary calories and reduces the nutritional density.
5. Your Trimester: The developing nervous system is most sensitive to mercury during the second and third trimesters, so consistent adherence to the “Best Choice” guidelines becomes especially important then.

What Major Health Organizations Recommend

Pregnant patients frequently hear vague advice to “limit fish,” which lacks the detail needed to make informed choices at the grocery store. Fortunately, multiple authoritative sources agree on the same practical guidance.

The Mayo Clinic fish safety guide, the EPA-FDA joint advice, and the NHS all classify cod as a low-mercury choice that supports a balanced pregnancy diet. The consistent message is that eating fish is beneficial — not dangerous — when you stick to the approved list.

The table below offers a quick reference for choosing wisely at the seafood counter:

Sticking to the “Best Choice” list means you don’t have to track mercury levels on your own. The sorting has been done for you.

The Bottom Line

Cod is a nutritious, low-mercury fish that fits comfortably into a healthy pregnancy diet when fully cooked. Aim for 8 to 12 ounces spread across the week, and pair it with other “Best Choice” options to keep your seafood intake both safe and varied.

Your obstetrician or midwife can help match the standard fish guidelines to your specific dietary needs and any local advisories about fish caught in nearby waters — so don’t hesitate to ask at your next appointment if you have questions about portion sizes or regional mercury data.