Low-FODMAP Seafood Guide
27 items classified under standard Low-FODMAP guidelines.
Low-FODMAP classifies foods based on fermentable carbohydrate content (FODMAPs). Of the 27 seafood evaluated, 27 are classified as Allowed, 0 as Limited, and 0 as Not Allowed.
Seafood are universally compatible with Low-FODMAP. Each item listed here is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. The entries below break down the specific nutritional profile so you can choose based on your individual targets — calories, macros, or micronutrients that matter for your goals.
Quick Reference
| Food | Status | Calories (per 100g) |
|---|---|---|
| Anchovies | Allowed | 210kcal |
| Calamari | Allowed | 234kcal |
| Canned Salmon | Allowed | 136kcal |
| Canned Tuna | Allowed | 85kcal |
| Canned Tuna in Oil | Allowed | 198kcal |
| Canned Tuna in Water | Allowed | 128kcal |
| Catfish | Allowed | 95kcal |
| Clams | Allowed | 86kcal |
| Cod | Allowed | 82kcal |
| Crab | Allowed | 83kcal |
| Fish Sticks | Allowed | 277kcal |
| Halibut | Allowed | 91kcal |
| Lobster | Allowed | 97kcal |
| Mahi Mahi | Allowed | 85kcal |
| Mussels | Allowed | 109kcal |
| Oysters | Allowed | 51kcal |
| Salmon | Allowed | 213kcal |
| Sardines | Allowed | 208kcal |
| Scallops | Allowed | 217kcal |
| Sea Bass | Allowed | 97kcal |
| Shrimp | Allowed | 426kcal |
| Smoked Salmon | Allowed | 117kcal |
| Sushi | Allowed | 94kcal |
| Swordfish | Allowed | 121kcal |
| Tilapia | Allowed | 96kcal |
| Trout | Allowed | 148kcal |
| Tuna | Allowed | 206kcal |
Classification Breakdown
27 Allowed — These seafood are low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving.
Low-FODMAP is a temporary diagnostic protocol — almost no food is universally banned, thresholds are dose-dependent.
Allowed Seafood (27)
Anchovies
AllowedAnchovies is classified as Allowed on Low-FODMAP, with 210kcal calories per 100g. The classification reflects that it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Nutritionally, it also delivers 28.9g protein and 9.7g fat per serving. It ranks among the highest in this category for calories. The nearest lower option is Sardines at 208kcal.
Per 100g · Source: USDA FoodData Central
Calamari
AllowedWith 234kcal calories per 100g, Calamari earns a Allowed classification on Low-FODMAP. It is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Beyond the primary classification, calamari also provides 13.8g protein and 13.2g fat per 100g. It ranks among the highest in this category for calories. The nearest lower option is Scallops at 217kcal.
Per 100g · Source: USDA FoodData Central
Canned Salmon
AllowedAt 136kcal calories per 100g, Canned Salmon falls into the Allowed category under Low-FODMAP guidelines. The classification reflects that it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Nutritionally, it also delivers 24.6g protein and 378mg sodium per serving. Within this category, it falls between Canned Tuna in Water and Trout for calories, ranking 17 of 27.
Per 100g · Source: USDA FoodData Central
Canned Tuna
AllowedAt 85kcal calories per 100g, Canned Tuna falls into the Allowed category under Low-FODMAP guidelines. The classification reflects that it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Nutritionally, it also delivers 19g protein and 219mg sodium per serving. Among the 27 items in this category, canned tuna sits at the low end for calories — next closest is Mahi Mahi at 85kcal.
Per 100g · Source: USDA FoodData Central
Canned Tuna in Oil
AllowedWith 198kcal calories per 100g, Canned Tuna in Oil earns a Allowed classification on Low-FODMAP. This means it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. It also contains 29.1g protein and 8.2g fat, which may factor into overall meal planning. Within this category, it falls between Trout and Tuna for calories, ranking 19 of 27.
Per 100g · Source: USDA FoodData Central
Canned Tuna in Water
AllowedWith 128kcal calories per 100g, Canned Tuna in Water earns a Allowed classification on Low-FODMAP. This means it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. It also contains 23.6g protein and 377mg sodium, which may factor into overall meal planning. Within this category, it falls between Swordfish and Canned Salmon for calories, ranking 16 of 27.
Per 100g · Source: USDA FoodData Central
Catfish
AllowedCatfish is classified as Allowed on Low-FODMAP, with 95kcal calories per 100g. The classification reflects that it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Nutritionally, it also delivers 16.4g protein per serving. Within this category, it falls between Sushi and Tilapia for calories, ranking 9 of 27.
Per 100g · Source: USDA FoodData Central
Clams
AllowedClams is classified as Allowed on Low-FODMAP, with 86kcal calories per 100g. The classification reflects that it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Nutritionally, it also delivers 14.7g protein per serving. Among the 27 items in this category, clams sits at the low end for calories — next closest is Halibut at 91kcal.
Per 100g · Source: USDA FoodData Central
Cod
AllowedCod is classified as Allowed on Low-FODMAP, with 82kcal calories per 100g. This means it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. It also contains 17.8g protein, which may factor into overall meal planning. Among the 27 items in this category, cod sits at the low end for calories — next closest is Crab at 83kcal.
Per 100g · Source: USDA FoodData Central
| Variant | Calories | Protein | Fat | Carbs | Fiber |
|---|---|---|---|---|---|
| Atlantic (raw) | 82kcal | 17.8g | 0.7g | 0g | 0g |
| Pacific (raw) | 84kcal | 20.4g | 0.3g | 0g | — |
Crab
AllowedCrab is classified as Allowed on Low-FODMAP, with 83kcal calories per 100g. The classification reflects that it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Nutritionally, it also delivers 17.9g protein and 395mg sodium per serving. Among the 27 items in this category, crab sits at the low end for calories — next closest is Canned Tuna at 85kcal.
Per 100g · Source: USDA FoodData Central
Fish Sticks
AllowedAt 277kcal calories per 100g, Fish Sticks falls into the Allowed category under Low-FODMAP guidelines. The classification reflects that it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Nutritionally, it also delivers 11g protein and 16.2g fat per serving. It ranks among the highest in this category for calories. The nearest lower option is Calamari at 234kcal.
Per 100g · Source: USDA FoodData Central
Halibut
AllowedHalibut is classified as Allowed on Low-FODMAP, with 91kcal calories per 100g. This means it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. It also contains 18.6g protein, which may factor into overall meal planning. Within this category, it falls between Clams and Sushi for calories, ranking 7 of 27.
Per 100g · Source: USDA FoodData Central
Lobster
AllowedWith 97kcal calories per 100g, Lobster earns a Allowed classification on Low-FODMAP. This means it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. It also contains 20.9g protein and 535mg sodium, which may factor into overall meal planning. Within this category, it falls between Tilapia and Sea Bass for calories, ranking 11 of 27.
Per 100g · Source: USDA FoodData Central
Mahi Mahi
AllowedMahi Mahi is classified as Allowed on Low-FODMAP, with 85kcal calories per 100g. The classification reflects that it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Nutritionally, it also delivers 18.5g protein per serving. Among the 27 items in this category, mahi mahi sits at the low end for calories — next closest is Clams at 86kcal.
Per 100g · Source: USDA FoodData Central
Mussels
AllowedMussels is classified as Allowed on Low-FODMAP, with 109kcal calories per 100g. This means it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. It also contains 15.1g protein and 362mg sodium, which may factor into overall meal planning. Within this category, it falls between Sea Bass and Smoked Salmon for calories, ranking 13 of 27.
Per 100g · Source: USDA FoodData Central
Oysters
AllowedOysters is classified as Allowed on Low-FODMAP, with 51kcal calories per 100g. The classification reflects that it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Nutritionally, it also delivers 5.7g protein per serving. Among the 27 items in this category, oysters sits at the low end for calories — next closest is Cod at 82kcal.
Per 100g · Source: USDA FoodData Central
Salmon
AllowedAt 213kcal calories per 100g, Salmon falls into the Allowed category under Low-FODMAP guidelines. The classification reflects that it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Nutritionally, it also delivers 10.8g protein and 17.4g fat per serving. It ranks among the highest in this category for calories. The nearest lower option is Anchovies at 210kcal.
Per 100g · Source: USDA FoodData Central
| Variant | Calories | Protein | Fat | Carbs | Fiber |
|---|---|---|---|---|---|
| Atlantic (raw) | 142kcal | 19.8g | 6.3g | 0g | 0g |
| Atlantic (farmed, raw) | 208kcal | 20.4g | 13.4g | 0g | 0g |
Sardines
AllowedSardines is classified as Allowed on Low-FODMAP, with 208kcal calories per 100g. The classification reflects that it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Nutritionally, it also delivers 24.6g protein and 11.5g fat per serving. It ranks among the highest in this category for calories. The nearest lower option is Tuna at 206kcal.
Per 100g · Source: USDA FoodData Central
Scallops
AllowedAt 217kcal calories per 100g, Scallops falls into the Allowed category under Low-FODMAP guidelines. It is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Beyond the primary classification, scallops also provides 11.1g protein and 12.5g fat per 100g. It ranks among the highest in this category for calories. The nearest lower option is Salmon at 213kcal.
Per 100g · Source: USDA FoodData Central
Sea Bass
AllowedSea Bass is classified as Allowed on Low-FODMAP, with 97kcal calories per 100g. This means it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. It also contains 18.4g protein, which may factor into overall meal planning. Within this category, it falls between Lobster and Mussels for calories, ranking 12 of 27.
Per 100g · Source: USDA FoodData Central
Shrimp
AllowedWith 426kcal calories per 100g, Shrimp earns a Allowed classification on Low-FODMAP. This means it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. It also contains 7.1g protein and 17.9g fat, which may factor into overall meal planning. It ranks among the highest in this category for calories. The nearest lower option is Fish Sticks at 277kcal.
Per 100g · Source: USDA FoodData Central
| Variant | Calories | Protein | Fat | Carbs | Fiber |
|---|---|---|---|---|---|
| Raw | 100kcal | 20.4g | 1.4g | 0g | 0g |
| Cooked | 87kcal | 17.5g | 1.3g | 0g | 0g |
Smoked Salmon
AllowedAt 117kcal calories per 100g, Smoked Salmon falls into the Allowed category under Low-FODMAP guidelines. It is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Beyond the primary classification, smoked salmon also provides 18.3g protein and 672mg sodium per 100g. Within this category, it falls between Mussels and Swordfish for calories, ranking 14 of 27.
Per 100g · Source: USDA FoodData Central
Sushi
AllowedAt 94kcal calories per 100g, Sushi falls into the Allowed category under Low-FODMAP guidelines. The classification reflects that it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Nutritionally, it also delivers 428mg sodium per serving. Within this category, it falls between Halibut and Catfish for calories, ranking 8 of 27.
Per 100g · Source: USDA FoodData Central
Swordfish
AllowedAt 121kcal calories per 100g, Swordfish falls into the Allowed category under Low-FODMAP guidelines. It is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Beyond the primary classification, swordfish also provides 19.7g protein per 100g. Within this category, it falls between Smoked Salmon and Canned Tuna in Water for calories, ranking 15 of 27.
Per 100g · Source: USDA FoodData Central
Tilapia
AllowedTilapia is classified as Allowed on Low-FODMAP, with 96kcal calories per 100g. The classification reflects that it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Nutritionally, it also delivers 20.1g protein per serving. Within this category, it falls between Catfish and Lobster for calories, ranking 10 of 27.
Per 100g · Source: USDA FoodData Central
Trout
AllowedTrout is classified as Allowed on Low-FODMAP, with 148kcal calories per 100g. This means it is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. It also contains 20.8g protein and 6.6g fat, which may factor into overall meal planning. Within this category, it falls between Canned Salmon and Canned Tuna in Oil for calories, ranking 18 of 27.
Per 100g · Source: USDA FoodData Central
Tuna
AllowedWith 206kcal calories per 100g, Tuna earns a Allowed classification on Low-FODMAP. It is low enough in fermentable carbohydrates to fit a Monash low-FODMAP serving. Beyond the primary classification, tuna also provides 15.3g protein and 14.9g fat per 100g. Within this category, it falls between Canned Tuna in Oil and Sardines for calories, ranking 20 of 27.
Per 100g · Source: USDA FoodData Central
| Variant | Calories | Protein | Fat | Carbs | Fiber |
|---|---|---|---|---|---|
| Fresh (raw) | 144kcal | 23.3g | 4.9g | 0g | 0g |
| Canned in Water | 90kcal | 19g | 0.9g | 0.1g | — |
| Canned in Oil | 198kcal | 29.1g | 8.2g | 0g | 0g |