
Last updated: October 24, 2026
A pescatarian diet is a vegetarian diet with fish and seafood added. You skip meat and poultry, and you keep salmon, cod, shrimp, tuna, eggs, dairy, beans and whole grains. For weight loss it is a practical choice: fish gives you lean protein, and beans, whole grains and vegetables give you fiber.
Below is a 7-day pescatarian meal plan for weight loss, with breakfast, lunch and dinner planned for a 1,700 kcal day, and the grocery list for that week sorted by aisle.
The name comes from the Italian pesce (fish). There are no official rules, but most pescatarians eat:
They do not eat beef, pork, lamb, chicken, turkey or game. Some people also skip eggs or dairy. The plan below includes both.
You lose weight when you eat fewer calories than you burn, on any diet. A pescatarian week makes that deficit easier to keep for three reasons:
A pescatarian diet is not low-calorie by itself. Fried fish, breaded fillets, creamy sauces, tempura rolls and large bowls of cheesy pasta are all pescatarian. Cooking methods and portions still matter.
In the Adventist Health Study-2, a study of about 61,000 adults in the US and Canada, pescatarians had an average BMI of 26.3, against 28.8 for people who ate meat (Tonstad et al., Diabetes Care, 2009 ). Lacto-ovo vegetarians averaged 25.7 and vegans 23.6. This is observational data: it shows that pescatarians weighed less on average, not that the diet caused it. People who choose this diet may also exercise more or smoke less.
The answer depends on your size, age, sex and activity. A common starting point is about 500 kcal a day below what you burn. The CDC describes a loss of about 1 to 2 lb (0.5 to 1 kg) a week as gradual and steady. As an example only, the NHS 12-week weight-loss plan uses 1,400 kcal a day for women and 1,900 kcal for men.
The week below was planned for a 1,700 kcal day. Use our calorie calculator to find your own number. If you are pregnant, breastfeeding, under 18 or have a health condition, ask your doctor before you cut calories.
We made this week in MenuMagic with one custom rule, "Pescatarian: no meat or poultry, fish and seafood allowed", a 1,700 kcal calorie goal, and breakfast, lunch and dinner turned on. We did not change the meals. Eight of the 14 lunches and dinners are fish or seafood, and the other six are vegetarian. No meal has meat or poultry.
| Day | Breakfast | Lunch | Dinner |
|---|---|---|---|
| Monday | Oatmeal with sliced apples and cinnamon | Tuna salad stuffed whole wheat pita | Pan-seared salmon with roasted butternut squash and green beans |
| Tuesday | Greek yogurt parfait with honey and walnuts | Mediterranean lentil soup with baby spinach | Baked cod with lemon herb couscous and steamed broccoli |
| Wednesday | Scrambled eggs with sliced avocado on whole grain toast | Spiced chickpea and roasted sweet potato bowl | Shrimp and vegetable stir-fry with brown rice |
| Thursday | Pumpkin seed and dried cranberry granola with skim milk | Smoked salmon and cucumber whole grain wrap | Black bean and sweet pepper quesadillas with chopped tomato salad |
| Friday | Spinach and feta two-egg omelet | Quinoa tabbouleh with crumbled feta and mixed greens | Seared tilapia tacos with cabbage slaw and lime crema |
| Saturday | Blueberry buttermilk pancakes with pure maple syrup | Creamy tomato basil soup with whole grain grilled cheese | Grilled trout with roasted Brussels sprouts and wild rice |
| Sunday | Poached eggs on sourdough toast with roasted mushrooms | Warm roasted delicata squash and kale salad with pears | Garlic butter scallops with whole wheat penne and asparagus |
One way to split a 1,700 kcal day: about 400 kcal at breakfast, 550 at lunch and 600 at dinner. That leaves about 150 kcal for a piece of fruit or a coffee with milk.
A few notes on the week:
Quantities are for two adults with weight-loss portions. Check your pantry first: you probably have the oil, spices and some of the dry goods already. For the method behind a list like this, see how to make a grocery list from a meal plan .
Fruit and vegetables
Fish and seafood counter
Refrigerated fish
Dairy and eggs
Bakery
Grains, pasta and legumes
Canned and jarred
Cereal, nuts and dried fruit
Frozen
Pantry (check first)
US dietary guidelines recommend at least 8 oz of seafood a week for adults. The FDA and EPA advice about eating fish sorts common fish by mercury level. Salmon, cod, shrimp, tilapia, scallops, trout, sardines and canned light tuna are in its "Best Choices" group, the lowest in mercury. It advises against swordfish, shark, king mackerel, bigeye tuna, marlin, orange roughy and tilefish from the Gulf of Mexico.
If you are pregnant or breastfeeding, the same advice is 2 to 3 servings a week from the Best Choices list. The week above has more fish than that, so swap some fish meals for vegetarian ones. Canned albacore ("white") tuna is in the "Good Choices" group, so canned light tuna is lower in mercury for the Monday pita.
The week above is one example. Next week you need 21 new meals and a new grocery list. MenuMagic has no pescatarian preset, but one custom rule makes a new pescatarian week for your household each time:
Rules are saved with your household's plan settings, and allergies and dislikes from your settings still apply. If a meal does not fit, or you don't like it, tap it while editing and choose Regenerate; the new meal follows the same rules.
With Premium, each meal comes with its full recipe: ingredients, steps, calories and macros. If you plan for one person, the planner picks dishes that fit your calorie goal and sizes each recipe to it. In the shopping list, Generate list turns the week into a list with quantities, sorted by aisle and shared with everyone in your household. The Diary logs your planned meals with their calories and macros in one tap; our meal planner with calorie tracking guide explains how.
Meal names in the plan and the rules are free. Full recipes, calorie-sized portions, macros, the automatic shopping list and one-tap logging need Premium.
Put this method to work
Turn what's already in your fridge into recipes, or grab the printable grocery list.
Fish and seafood, eggs, dairy, legumes, whole grains, vegetables, fruit, nuts and seeds. They do not eat meat or poultry, such as beef, pork, lamb, chicken or turkey. Some pescatarians also skip eggs or dairy.
It can help. Fish and seafood give lean protein, and beans, whole grains and vegetables give fiber, so meals are filling for their calories. In a study of about 61,000 adults in the US and Canada, pescatarians had a lower average BMI than meat eaters, but that does not prove the diet caused it. You still need to eat fewer calories than you burn.
It depends on your size, age, sex and activity. A common starting point is about 500 kcal a day below what you burn. As an example, the NHS weight-loss plan uses 1,400 kcal a day for women and 1,900 for men. The sample week in this article was planned for 1,700 kcal.
US dietary guidelines recommend at least 8 oz of seafood a week for adults. The FDA and EPA list salmon, cod, shrimp, tilapia, trout and canned light tuna among the fish lowest in mercury. Avoid swordfish, shark, king mackerel and bigeye tuna, which are high in mercury. If you are pregnant or breastfeeding, the FDA and EPA advise 2 to 3 servings a week from their Best Choices list.
Put this method to work
Turn what's already in your fridge into recipes, or grab the printable grocery list.
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