Crab is excellent for keto: ~0g net carbs per 100g with ~18g protein. It’s very lean, so pair with butter, ghee, mayonnaise, or avocado oil to hit keto fat targets. Naturally sweet, delicate, and nutrient-dense (selenium, B12)—a smart, satiating protein.
Is Crab Keto?

YOUR PORTION
How much are you having?
Per 100 g (as listed by source). Curated estimate; estimated values.
Scales this reference to your portion, with no extra deductions. Calculation and units.
0gnet carbs in your portion
- Total carbs
- 0g
- Fiber
- 0g
- Protein
- 18g
- Fat
- 1g
- Calories
- 83
The 100 g reference amount provides 0g net carbs and can fit common keto portions.
- Net carbs (100 g)0g
- Protein (100 g)18g
- Fat (100 g)1g
- Keto verdictKeto-friendly
NUTRITION FACTS
Per 100 g (as listed by source)
Source: Curated estimate
Source fit: curated estimate; not an exact source match
Net-carb calculation: total carbohydrate - fiber
A USDA reference record exists, but the displayed basis or macros do not directly reproduce it, so KetoLens does not attribute these values to USDA. Check the current label for packaged products.
Nutrition record reviewed 2026-07-09. Maintained by KetoLens Team.
WHY IT'S KETO-FRIENDLY
- Zero net carbs: no impact on ketosis
- High-quality protein: ~18g/100g supports muscle maintenance
- Lean profile leaves room to add healthy fats
- Naturally flavorful—no need for sugary sauces or breading
- Micronutrient-rich (selenium, B12) enhances nutrient density
- Versatile in low-carb dishes (salads, zoodles, lettuce wraps)
PREPARATION SUGGESTIONS
CRAB CAKES
Combine crab with almond flour, egg, mayo, mustard, and herbs; pan-fry in butter or avocado oil.
BUTTER-GARLIC CRAB LEGS
Steam or boil legs; serve with melted garlic butter and a squeeze of lemon.
CRAB SALAD
Toss lump crab with mayonnaise, celery, lemon juice, dill; serve in romaine cups.
CRAB-STUFFED AVOCADO
Fill avocado halves with creamy crab salad for a high-fat keto meal.
CRAB ALFREDO
Fold crab into a sauce of heavy cream, parmesan, and garlic; serve over zucchini noodles.
WARM CRAB DIP
Bake crab with cream cheese, sour cream, parmesan, and Old Bay until bubbly.