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Can you eat lobster while pregnant?

Yes, if it is fully cooked, and FDA and EPA list lobster among Best Choices for mercury (mean 0.093 to 0.166 ppm in FDA testing). In pregnancy that allows 2 to 3 servings of 4 oz a week across all Best Choices fish and shellfish combined, with the lobster cooked until the flesh is pearly and opaque, never raw or undercooked.

This page covers food safety in pregnancy. The same advice applies to other people at higher risk of foodborne illness: older adults, young children and people with weakened immune systems. If your doctor has given you a specific diet, follow it. The mercury amounts on this page are for adults who are or may become pregnant or are breastfeeding. FDA and EPA give children different amounts.

What FDA, ACOG and FoodSafety.gov say

What to avoid

Amounts and limits

Safer choices and when it is OK

How to cook or handle it

Word-for-word quotes from official US sources. Level E means the position of an expert body. How we grade evidence.

Mercury: how much a week in pregnancy

KindMercury, mean ppmSamplesFDA/EPA groupServings a week
Lobster (spiny)0.09313Best Choices2 to 3 servings of 4 oz a week
Lobster (northern or American)0.1079Best Choices2 to 3 servings of 4 oz a week
Lobster0.16671Best Choices2 to 3 servings of 4 oz a week

Mercury: FDA testing 1990 to 2012. Groups and servings: FDA and EPA advice for people who are or may become pregnant and those who are breastfeeding. A serving is 4 oz (113 g) before cooking.

What a serving brings in pregnancy

NutrientPer 4 oz (113 g)% Daily Value
Protein21.5 g43%
Folate (DFE)12 mcg3%
Choline92 mg17%
Calcium109 mg8%
Vitamin B121.6 mcg68%

USDA FoodData Central, Crustaceans, lobster, northern, cooked, moist heat. It has 101 calories. Daily Values are the standard adult label values, not pregnancy targets.

What studies found

Levels: A is a meta-analysis of trials, B a randomized trial, C an observational study, D lab or animal work, E an expert position. How we grade evidence.

In practice

Lobster ranged from 0.093 to 0.166 ppm of mercury in FDA testing, and FDA and EPA put American and spiny lobster in the Best Choices group (Level E). A 4 oz serving of cooked lobster has 21.5 g of protein and 109 mg of calcium.

Two things to watch. Cook it until the flesh is pearly and opaque. If you buy a whole fresh lobster, pick a live one, because FDA notes lobsters spoil quickly after death. A review of 46 studies found eating shellfish in pregnancy and early childhood tracked with higher contaminant markers, mercury most of all (Level C), so keep to the weekly amount.

That amount, 2 to 3 servings of 4 oz, is the total for all the fish and shellfish you eat in a week, not a separate allowance for lobster. FDA frames it as 8 to 12 oz a week of a variety of lower-mercury seafood.

Evidence behind this note

  1. Level E FDA and EPA list both shrimp and American and spiny lobster as Best Choices, so people who are pregnant or breastfeeding may eat 2 to 3 servings of 4 ounces a week of either. FDA and EPA, Advice about Eating Fish, page current as of 2024-03-05
  2. Level C A scoping review of 46 studies on shellfish in pregnancy and early childhood found shellfish intake linked with higher contaminant biomarkers, mercury most of all. Nutr Res Rev, 2025

Written from the agency positions and data on this page, reviewed by the Bioma editorial system. How we verify.

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Sources

Agency pages checked 2026-10-12. Bioma Learn provides information, not medical advice.