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?

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.
- Net carbs (100g)0g
- Protein (100g)18g
- Fat (100g)1g
- Keto verdictKeto-friendly
NUTRITION FACTS
Per 100g (raw)
Source: USDA FoodData Central
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)
HEALTH BENEFITS
- Excellent source of selenium for antioxidant and thyroid support
- Rich in vitamin B12 for energy metabolism and nerve health
- Provides omega-3 fats that support heart and brain function
- Good source of zinc for immune health and wound healing
- Contains copper to aid iron metabolism and red blood cell formation
- Phosphorus supports bone health and cellular energy
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.