If you’re asking how much fish you can eat during pregnancy, aim for 8 to 12 ounces of seafood per week from choices lower in mercury. [1] That amount is your total for the week, not a daily target. [1]
Fish can be part of your weekly meals, so you don’t need to plan to eat it every day to meet this recommendation. Think of the range as a weekly guide: for example, you might include seafood in some meals and choose other foods on the remaining days. The key is to count your seafood over the whole week rather than treating the recommendation as an amount to eat each day.
This target gives you a practical starting point when planning meals during pregnancy. [2] As you decide what to eat, keep the weekly total in mind and choose seafood that fits the guidance for pregnancy.
What 8 to 12 ounces looks like in meals
You can spread your fish portions across two or three meals, and the servings do not need to be identical. For example, two 4-ounce meals make 8 ounces for the week, while three meals of 3, 4, and 5 ounces add up to 12 ounces. [2][3]
Mix and match portions
Think of the weekly amount as a running total rather than a set meal size. If you have a 5-ounce serving at dinner, you could have a 3-ounce serving later in the week; together, those meals total 8 ounces. [2][3]
If your meals vary, that is fine: a 3-ounce lunch, a 4-ounce dinner, and another 4-ounce meal total 11 ounces. You do not need to make every meal exactly the same size to plan portions within the weekly range. [2][3]
When the package or recipe gives a weight, use the ounces to estimate what you have eaten. For a meal without a listed portion, you can make a practical estimate and add it to the rest of the week; the goal is to account for the portions you actually eat, not to hit an identical number at every sitting.
This can make planning easier when meals change from week to week. For instance, you might have one larger serving at a family dinner and smaller portions at lunch on other days, rather than splitting the amount evenly. As long as you add those portions together, you can see how they fit into the weekly total. [2][3]
Choose a variety of lower-mercury seafood
Choosing a variety of lower-mercury seafood helps you include different fish in your pregnancy meals instead of relying on just one kind. For example, you might alternate among different seafood choices over the week, rather than choosing the same fish every time. [1]
Variety matters, but it does not mean every type of fish has the same serving guidance. Some fish have a different weekly limit; for example, guidance allows only one serving, no more than 6 ounces, of some fish. [3] Check the current guidance for the specific fish you plan to eat, especially if you are unsure how often to serve it.
When planning meals, think about variety as a choice among fish with lower mercury levels, not as a reason to add more seafood than you intended. You could choose one type for a meal and a different type the next time; check each fish’s guidance before settling on the menu. If you are shopping and cannot confirm the guidance for a particular fish, choose another option whose guidance you can check.
A simple way to keep track
A simple weekly note can help you keep track of seafood meals and plan what to eat next. After each meal, jot down the type of seafood and your approximate portion; for example, write “salmon, about 4 ounces” rather than trying to remember later. If you do not know the exact amount, use your best estimate and mark it as approximate.
At the end of the week, add the portions together and use that total to guide upcoming meals. If your notes show a smaller amount than you planned, you can include seafood in a later meal; if the total is already where you want it, plan a different meal instead. A running note on your phone, a calendar entry, or a mark on your meal plan can make this easy to do without extra tracking tools.
If you eat fish caught locally, check local advisories before deciding what to serve. Look up the advisory for the specific waterway or area where the fish was caught, and follow any instructions about whether to eat it or how often. This is especially useful when a friend or family member shares a catch and you are not sure where it came from; ask for the location before adding it to your meal plan.
Keep the weekly total in mind
Keep the weekly total in mind: aim for 8 to 12 ounces of seafood that is lower in mercury, and choose different kinds when you can. [1] That gives you a simple number to use when planning meals, without needing to build your week around one particular fish.
If you are unsure whether a fish fits your plan, check the guidance for that specific fish before you order it or add it to your grocery list. Fish can have different recommendations, so a quick check can help you make a choice that works with your weekly target. [2]
For example, if you are deciding between two fish at a restaurant, look up each one rather than assuming they have the same guidance. If you cannot confirm the recommendation, choose a fish with clear lower-mercury guidance instead. Keep that check simple: use the specific fish name, then return to your usual meal planning.