Can You Eat Can Tuna While Pregnant?

Is canned tuna safe during pregnancy?

Yes, canned tuna is safe during pregnancy in FDA-recommended amounts. The canning process subjects tuna to high temperatures that fully cook it, kill bacteria, eliminate parasites, and create a shelf-stable product. The FDA classifies canned tuna varieties differently based on mercury content. Canned light tuna (primarily skipjack) has low mercury (about 0.13 ppm) and is in the FDA's 'best choices' category, allowing 8-12 oz (2-3 servings) per week. Canned white tuna (albacore) has higher mercury (about 0.32 ppm) and is a 'good choice' limited to 4 oz (1 serving) per week. Mercury is the main consideration during pregnancy; it can cross the placenta and affect fetal nervous system development. Cumulative mercury exposure matters more than single servings, making weekly limits the meaningful guideline.

How do you know which canned tuna you're eating?

Read the can label carefully. The label specifies the tuna type: 'Chunk Light Tuna' or 'Light Tuna' usually means skipjack (low mercury); 'Solid White' or 'White Albacore' means albacore (higher mercury). 'Yellowfin Tuna' is sometimes available in cans and is in the 'good choices' category like albacore. 'Bigeye Tuna' should be avoided entirely; this is rare in cans. Some brands now label products as 'low mercury' or 'safe catch' which helps identification. The shape and color of the tuna in the can can also indicate type: light tuna is usually flakier and pinker; white/albacore tuna is solid and lighter colored. Both pack styles (in water and in oil) have the same mercury content; choose based on calorie preferences. Pouches of tuna follow the same labeling and mercury guidelines as cans.

How much canned tuna can you eat during pregnancy?

Canned light tuna: 8-12 oz per week (2-3 servings of 4 oz each). A standard 5 oz can yields about 4 oz of drained tuna, equaling 1 serving. Eating canned light tuna twice a week meets FDA recommendations. Canned white tuna/albacore: 4 oz per week (1 serving). If you eat canned white tuna, that's your full weekly tuna allowance. Mixing tuna types: stay within the lowest-mercury tuna's weekly limit. For example, eating 2 oz of canned light tuna and 2 oz of canned white tuna in a week is acceptable (within the 4 oz albacore limit). Skipping a week to 'save up' for higher consumption isn't recommended; mercury accumulates and weekly limits aim for sustained low exposure. Some weeks of higher consumption are acceptable but consistent over-consumption isn't recommended.

How should you prepare canned tuna safely during pregnancy?

Canned tuna is shelf-stable until opened. Once opened, transfer remaining tuna to an airtight container (not the can) and refrigerate; use within 3-5 days. For tuna salad, use pasteurized mayonnaise (most commercial brands are pasteurized): Hellmann's, Best Foods, Kraft, Duke's. Store tuna salad in the refrigerator; consume within 3-5 days. Don't leave at room temperature more than 2 hours. Acceptable canned tuna preparations: tuna salad sandwiches, tuna melts, tuna pasta salad, tuna noodle casserole, tuna patties, tuna stuffed avocado, tuna on crackers. Pair tuna with vegetables and whole grains for balanced nutrition. Avoid mixing canned tuna with raw or undercooked ingredients.