Which has more calories, Crustaceans, Crab or Tuna, Ahi Or Yellowfin?

Per 100 g: Crustaceans, Crab has 83 kcal, Tuna, Ahi Or Yellowfin has 102 kcal.

Which has more protein, Crustaceans, Crab or Tuna, Ahi Or Yellowfin?

Per 100 g: Crustaceans, Crab has 17.9 g of protein, Tuna, Ahi Or Yellowfin has 24.7 g.

Crustaceans, Crab vs Tuna, Ahi Or Yellowfin: Nutrition Comparison

Compare calories, protein, fat, carbs, vitamins and minerals per 100 g. Values shaded green are generally the more favorable ones.

Fish & Seafood Crustaceans, Crab 83 kcal · 100 g VS Fish & Seafood Tuna, Ahi Or Yellowfin 102 kcal · 100 g

Key differences

Tuna, Ahi Or Yellowfin has more calories; Crustaceans, Crab is lower in calories.
Tuna, Ahi Or Yellowfin has more protein per 100 g.
Crustaceans, Crab is notably higher in calcium.
Tuna, Ahi Or Yellowfin is notably higher in potassium.

At a glance

Crustaceans, Crab on the left, Tuna, Ahi Or Yellowfin on the right. The longer bar holds more per 100 g; green marks the generally more favorable value.

Calories

83 kcal

101.9 kcal

Protein

17.9 g

24.7 g

Total Fat

0.7 g

0.4 g

Carbohydrate

0 g

-0.1 g

Dietary Fiber

0 g

—

Total Sugars

0 g

—

Nutrient comparison (per 100 g)

Nutrient	Crustaceans, Crab	Tuna, Ahi Or Yellowfin
Calories	83 kcal	101.9 kcal
Protein	17.9 g	24.7 g
Total Fat	0.7 g	0.4 g
Saturated Fat	0.2 g	—
Carbohydrate	0 g	-0.1 g
Dietary Fiber	0 g	—
Total Sugars	0 g	—
Sodium	563 mg	94.4 mg
Potassium	259 mg	420.2 mg
Calcium	91 mg	3.2 mg
Iron	0.5 mg	0.6 mg
Magnesium	36 mg	35.5 mg
Vitamin C	3.3 mg	—
Vitamin A	1 mcg	—
Vitamin D	0 mcg	—
Cholesterol	97 mg	—

Green highlighting marks the more favorable value where it applies (for example, more protein or less saturated fat). Neutral nutrients are not highlighted.

Data source: USDA FoodData Central. Values are per 100 g of edible portion and are reference figures — they vary by variety, preparation and brand. Last updated: 2026-04-30.

Crustaceans, Crab

Protein91.5%17.9 g
Fat8.5%0.7 g
Carbs0%0 g

Tuna, Ahi Or Yellowfin

Protein96.6%24.7 g
Fat3.4%0.4 g
Carbs0%-0.1 g

Frequently asked questions

Which has more calories, Crustaceans, Crab or Tuna, Ahi Or Yellowfin?: Per 100 g: Crustaceans, Crab has 83 kcal, Tuna, Ahi Or Yellowfin has 102 kcal.
Which has more protein, Crustaceans, Crab or Tuna, Ahi Or Yellowfin?: Per 100 g: Crustaceans, Crab has 17.9 g of protein, Tuna, Ahi Or Yellowfin has 24.7 g.

Compare with other foods

Crustaceans, Crab vs Alaska Pollock, Raw Crustaceans, Crab vs Anchovies, Canned In Olive Oil Crustaceans, Crab vs Cod, Pacific Or Alaskan Crustaceans, Crab vs Crustaceans, Crab Tuna, Ahi Or Yellowfin vs Alaska Pollock, Raw Tuna, Ahi Or Yellowfin vs Anchovies, Canned In Olive Oil Tuna, Ahi Or Yellowfin vs Cod, Pacific Or Alaskan Pick a pair manually

Note. This information is provided for general reference only and is not medical advice or a diet prescription. If you have a medical condition or special dietary needs, consult a physician or a registered dietitian.