Sugar-Free Seafood Guide

27 items classified under standard Sugar-Free guidelines.

How do seafood fare on the Sugar-Free diet? The answer depends on added sugar content. This guide breaks down all 27 items in this category with their classification, nutritional data, and the reasoning behind each status.

Seafood are universally compatible with Sugar-Free. Each item listed here is naturally free of added sugar. 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.

27 Allowed

Quick Reference

Food	Status	Sugar (per 100g)
Anchovies	Allowed	0g
Calamari	Allowed	—
Canned Salmon	Allowed	—
Canned Tuna	Allowed	—
Canned Tuna in Oil	Allowed	—
Canned Tuna in Water	Allowed	—
Catfish	Allowed	—
Clams	Allowed	—
Cod	Allowed	—
Crab	Allowed	—
Fish Sticks	Allowed	—
Halibut	Allowed	0g
Lobster	Allowed	—
Mahi Mahi	Allowed	0g
Mussels	Allowed	—
Oysters	Allowed	—
Salmon	Allowed	—
Sardines	Allowed	—
Scallops	Allowed	—
Sea Bass	Allowed	0g
Shrimp	Allowed	—
Smoked Salmon	Allowed	—
Sushi	Allowed	—
Swordfish	Allowed	0g
Tilapia	Allowed	—
Trout	Allowed	—
Tuna	Allowed	—

Classification Breakdown

27 Allowed — These seafood are naturally free of added sugar.

Sugar names to watch: cane juice, fruit juice concentrate, brown rice syrup, agave, anything ending in "-ose."

Allowed Seafood (27)

Anchovies is classified as Allowed on Sugar-Free, with 0g sugar per 100g. This means it is naturally free of added sugar. It also contains 28.9g protein and 9.7g fat, which may factor into overall meal planning. Among the 5 items in this category, anchovies sits at the low end for sugar — next closest is Halibut at 0g.

Per 100g · Source: USDA FoodData Central

210kcalCalories

28.9gProtein

9.7gFat

0gCarbs

0gSugar

0gFiber

Compare Anchovies across all diets

Calamari is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

234kcalCalories

13.8gProtein

13.2gFat

14.1gCarbs

—Sugar

0.5gFiber

Compare Calamari across all diets

Canned Salmon is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

136kcalCalories

24.6gProtein

4.2gFat

0gCarbs

—Sugar

0gFiber

Compare Canned Salmon across all diets

Canned Tuna is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

85kcalCalories

19gProtein

0.9gFat

0.1gCarbs

—Sugar

0gFiber

Compare Canned Tuna across all diets

Canned Tuna in Oil is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

198kcalCalories

29.1gProtein

8.2gFat

0gCarbs

—Sugar

0gFiber

Compare Canned Tuna in Oil across all diets

Canned Tuna in Water is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

128kcalCalories

23.6gProtein

3gFat

0gCarbs

—Sugar

0gFiber

Compare Canned Tuna in Water across all diets

Catfish is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

95kcalCalories

16.4gProtein

2.8gFat

0gCarbs

—Sugar

0gFiber

Compare Catfish across all diets

Clams is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

86kcalCalories

14.7gProtein

1gFat

3.6gCarbs

—Sugar

0gFiber

Compare Clams across all diets

Cod is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

Variant	Calories	Protein	Fat	Carbs	Sugar	Fiber
Atlantic (raw)	82kcal	17.8g	0.7g	0g	—	0g
Pacific (raw)	84kcal	20.4g	0.3g	0g	—	—

Compare Cod across all diets

Crab is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

83kcalCalories

17.9gProtein

0.7gFat

0gCarbs

—Sugar

0gFiber

Compare Crab across all diets

Fish Sticks is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

277kcalCalories

11gProtein

16.2gFat

21.7gCarbs

—Sugar

1.5gFiber

Compare Fish Sticks across all diets

At 0g sugar per 100g, Halibut falls into the Allowed category under Sugar-Free guidelines. It is naturally free of added sugar. Beyond the primary classification, halibut also provides 18.6g protein per 100g. Within this category, it falls between Anchovies and Mahi Mahi for sugar, ranking 2 of 5.

Per 100g · Source: USDA FoodData Central

91kcalCalories

18.6gProtein

1.3gFat

0gCarbs

0gSugar

0gFiber

Compare Halibut across all diets

Lobster is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

97kcalCalories

20.9gProtein

1gFat

0gCarbs

—Sugar

0gFiber

Compare Lobster across all diets

With 0g sugar per 100g, Mahi Mahi earns a Allowed classification on Sugar-Free. This means it is naturally free of added sugar. It also contains 18.5g protein, which may factor into overall meal planning. Within this category, it falls between Halibut and Sea Bass for sugar, ranking 3 of 5.

Per 100g · Source: USDA FoodData Central

85kcalCalories

18.5gProtein

0.7gFat

0gCarbs

0gSugar

0gFiber

Compare Mahi Mahi across all diets

Mussels is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

109kcalCalories

15.1gProtein

2.8gFat

4.7gCarbs

—Sugar

0gFiber

Compare Mussels across all diets

Oysters is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

51kcalCalories

5.7gProtein

1.7gFat

2.7gCarbs

—Sugar

0gFiber

Compare Oysters across all diets

Salmon is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

Variant	Calories	Protein	Fat	Carbs	Sugar	Fiber
Atlantic (raw)	142kcal	19.8g	6.3g	0g	—	0g
Atlantic (farmed, raw)	208kcal	20.4g	13.4g	0g	—	0g

Compare Salmon across all diets

Sardines is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

208kcalCalories

24.6gProtein

11.5gFat

0gCarbs

—Sugar

0gFiber

Compare Sardines across all diets

Scallops is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

217kcalCalories

11.1gProtein

12.5gFat

14.1gCarbs

—Sugar

0.5gFiber

Compare Scallops across all diets

With 0g sugar per 100g, Sea Bass earns a Allowed classification on Sugar-Free. This means it is naturally free of added sugar. It also contains 18.4g protein, which may factor into overall meal planning. It ranks among the highest in this category for sugar. The nearest lower option is Mahi Mahi at 0g.

Per 100g · Source: USDA FoodData Central

97kcalCalories

18.4gProtein

2gFat

0gCarbs

0gSugar

0gFiber

Compare Sea Bass across all diets

Shrimp is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

Variant	Calories	Protein	Fat	Carbs	Sugar	Fiber
Raw	100kcal	20.4g	1.4g	0g	—	0g
Cooked	87kcal	17.5g	1.3g	0g	—	0g

Compare Shrimp across all diets

Smoked Salmon is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

117kcalCalories

18.3gProtein

4.3gFat

0gCarbs

—Sugar

0gFiber

Compare Smoked Salmon across all diets

Sushi is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

94kcalCalories

2.9gProtein

0.7gFat

18.4gCarbs

—Sugar

1gFiber

Compare Sushi across all diets

With 0g sugar per 100g, Swordfish earns a Allowed classification on Sugar-Free. This means it is naturally free of added sugar. It also contains 19.7g protein, which may factor into overall meal planning. It ranks among the highest in this category for sugar. The nearest lower option is Sea Bass at 0g.

Per 100g · Source: USDA FoodData Central

121kcalCalories

19.7gProtein

4gFat

0gCarbs

0gSugar

0gFiber

Compare Swordfish across all diets

Tilapia is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

96kcalCalories

20.1gProtein

1.7gFat

0gCarbs

—Sugar

0gFiber

Compare Tilapia across all diets

Trout is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

148kcalCalories

20.8gProtein

6.6gFat

0gCarbs

—Sugar

0gFiber

Compare Trout across all diets

Tuna is classified as Allowed on Sugar-Free. This classification reflects that it is naturally free of added sugar.

Per 100g · Source: USDA FoodData Central

Variant	Calories	Protein	Fat	Carbs	Sugar	Fiber
Fresh (raw)	144kcal	23.3g	4.9g	0g	—	0g
Canned in Water	90kcal	19g	0.9g	0.1g	0g	—
Canned in Oil	198kcal	29.1g	8.2g	0g	—	0g

Compare Tuna across all diets