Keto fish & seafood

Fish is carb-free and shellfish has only a few natural carbs. Avoid breaded coatings and imitation crab.

Lowest in net carbs per serving: anchovies (0 g), bluefish (0 g), carp (0 g), catfish (0 g), cod (0 g).

Keto-friendly 55

Eat these freely within your macros. Low in net carbs per typical serving (about 5 g or less). Fits easily into a 20–30 g daily limit.

Keto-friendly fish & seafood
Food	Net carbs	Calories	Protein	Fat
Anchovies 5 anchovies	0 g	42	5.8 g	1.9 g
Bluefish 4 oz raw	0 g	140	23 g	4.8 g
Carp 4 oz raw	0 g	144	20 g	6.3 g
Catfish 1 fillet	0 g	189	24 g	9.4 g
Cod 4 oz raw	0 g	93	20 g	0.8 g
Crab 3 oz	0 g	74	15 g	0.9 g
Crawfish 3 oz (tail meat)	0 g	61	13 g	0.8 g
Eel 3 oz raw	0 g	156	16 g	9.9 g
Flounder & sole 1 fillet	0 g	114	20 g	3.1 g
Grouper 4 oz raw	0 g	104	22 g	1.2 g
Haddock 4 oz raw	0 g	84	18 g	0.5 g
Halibut 4 oz raw	0 g	103	21 g	1.5 g
Herring 3 oz raw	0 g	134	15 g	7.7 g
Lobster 3 oz	0 g	65	14 g	0.6 g
Mackerel 4 oz raw	0 g	232	21 g	16 g
Mahi-mahi 4 oz raw	0 g	96	21 g	0.8 g
Monkfish 4 oz raw	0 g	86	16 g	1.7 g
Northern pike 4 oz raw	0 g	99	22 g	0.8 g
Orange roughy 4 oz raw	0 g	86	19 g	0.8 g
Perch 4 oz raw	0 g	103	22 g	1 g
Pollock 4 oz raw	0 g	86	19 g	0.9 g
Pompano 4 oz raw	0 g	185	21 g	11 g
Rockfish (Pacific) 4 oz raw	0 g	102	21 g	1.5 g
Sablefish (black cod) 4 oz raw	0 g	220	15 g	17 g
Salmon 4 oz raw	0 g	235	23 g	15 g
Salmon (canned) 3 oz drained	0 g	117	20 g	4.3 g
Salt cod 2 oz dried	0 g	165	36 g	1.4 g
Sardines 1 can (3.75 oz)	0 g	191	23 g	11 g
Sea bass 1 fillet	0 g	125	24 g	2.6 g
Shark 4 oz raw	0 g	147	24 g	5.1 g
Shrimp 4 oz raw	0 g	96	23 g	0.6 g
Smelt 4 oz raw	0 g	110	20 g	2.7 g
Smoked salmon 2 oz	0 g	67	10 g	2.5 g
Snapper 4 oz raw	0 g	113	23 g	1.5 g
Striped bass 4 oz raw	0 g	110	20 g	2.6 g
Sturgeon 4 oz raw	0 g	119	18 g	4.6 g
Swordfish 4 oz raw	0 g	163	22 g	7.5 g
Tilapia 1 fillet	0 g	111	23 g	2 g
Trout 1 fillet	0 g	111	16 g	4.9 g
Tuna (canned) 1 can, drained	0 g	165	36 g	1.2 g
Tuna steak 4 oz raw	0 g	123	28 g	0.6 g
Walleye 4 oz raw	0 g	105	22 g	1.4 g
Whitefish 4 oz raw	0 g	151	22 g	6.6 g
Whiting 4 oz raw	0 g	102	21 g	1.5 g
Yellowtail 4 oz raw	0 g	165	26 g	5.9 g
Caviar & fish roe 1 tbsp	0.6 g	42	3.9 g	2.9 g
Cuttlefish 3 oz raw	0.7 g	67	14 g	0.6 g
Conch 3 oz cooked	1.4 g	111	22 g	1 g
Octopus 3 oz raw	1.9 g	70	13 g	0.9 g
Oysters 6 medium	2.3 g	43	4.8 g	1.4 g
Squid 3 oz raw	2.6 g	78	13 g	1.2 g
Scallops 3 oz raw	2.7 g	59	10 g	0.4 g
Clams 3 oz (meat)	3 g	73	13 g	0.8 g
Mussels 3 oz (meat)	3.1 g	73	10 g	1.9 g
Abalone 3 oz raw	5.1 g	89	15 g	0.6 g

Limit — small portions 3

These can fit if you measure them. Swaps shown where they help. Fits keto only in measured portions — roughly 5–10 g net carbs per serving, or easy to overeat.

Limit — small portions fish & seafood
Food	Net carbs	Calories	Protein	Fat	Eat instead
Pickled herring 2 oz	5.5 g	149	8.1 g	10 g	Herring Sardines Smoked salmon
Gefilte fish 2 pieces	6.2 g	71	7.6 g	1.5 g	Whitefish Smoked salmon Cod
Fried calamari 3 oz	6.6 g	149	15 g	6.4 g	Squid Octopus Breadcrumbs swaps →

Not keto 3

Too many carbs per serving. Here’s what to eat instead. More than about 10 g net carbs per typical serving. Swap it for a low-carb alternative.

Not keto fish & seafood
Food	Net carbs	Calories	Protein	Fat	Fiber	Eat instead
Imitation crab 3 oz	12 g	81	6.5 g	0.4 g	0.4 g	Crab Shrimp Tuna (canned)
Fried shrimp (breaded) 4 oz	13 g	273	24 g	14 g	0.5 g	Shrimp Pork rinds Almond flour Breadcrumbs swaps →
Fish sticks 4 sticks	23 g	310	12 g	18 g	1.7 g	Cod Pork rinds Tilapia Breadcrumbs swaps →