Dungeness Crab: A Nutritional Powerhouse and Delicious Seafood Staple

Dungeness Crab Nutrition: Health Benefits, Nutritional Profile, and Recipes

Dungeness crab is one of the most nutritionally dense shellfish available — high in protein, low in fat, rich in omega-3 fatty acids, and an exceptional source of several micronutrients that are difficult to obtain from other foods. The FDA classifies Dungeness crab as a "best choice" for frequent consumption, including during pregnancy, due to its very low mercury content. This article covers the complete nutritional profile, the specific health benefits supported by the data, and two simple recipes.

🔗 Dungeness Crab Clusters | Dungeness Crab Whole | Dungeness Crab Meat

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Nutritional Profile: Per 3.5 oz (100g) Cooked Serving

• Calories: ~110 kcal
• Protein: ~22g — complete protein containing all essential amino acids
• Total fat: ~1.5g (very low in saturated fat: ~0.2g)
• Omega-3 fatty acids (EPA+DHA): ~400mg — the American Heart Association recommends at least 250–500mg EPA+DHA per day for general cardiovascular health
• Cholesterol: ~76mg
• Sodium: ~295mg (naturally occurring; not added)
• Vitamin B12: ~9mcg (~375% daily value) — one of the best dietary sources of B12 available; a single serving provides nearly four times the daily requirement
• Selenium: ~40mcg (~73% daily value) — antioxidant; supports thyroid hormone metabolism and immune function
• Zinc: ~4mg (~36% daily value) — essential for immune function, wound healing, and protein synthesis
• Copper: ~0.7mg (~78% daily value) — supports iron metabolism, connective tissue formation, and neurological function
• Phosphorus: ~230mg (~18% daily value) — essential for bone health and energy metabolism
• Mercury: Very low — FDA classifies Dungeness crab as a "best choice" for frequent consumption (2–3 servings per week), including for pregnant women and young children

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Health Benefits: What the Nutritional Data Supports

Cardiovascular Health

The omega-3 fatty acids (EPA and DHA) in Dungeness crab are the most studied dietary fats for cardiovascular benefit. The American Heart Association recommends eating fish or seafood at least twice a week, particularly fatty fish and shellfish rich in EPA and DHA, as part of a heart-healthy diet. A 3.5 oz serving of Dungeness crab provides approximately 400mg of EPA+DHA — a meaningful contribution toward the recommended 250–500mg daily target. Omega-3s reduce triglyceride levels, lower blood pressure modestly, reduce platelet aggregation (clotting), and have anti-inflammatory effects that reduce cardiovascular risk over time.

Neurological Function and B12

Vitamin B12 is essential for myelin synthesis (the protective sheath around nerve fibers), red blood cell formation, and DNA synthesis. B12 deficiency — which is common in older adults and people who eat little or no animal products — causes neurological damage, anemia, and cognitive decline. Dungeness crab is one of the richest dietary sources of B12 available: a single 3.5 oz serving provides approximately 375% of the daily value. For people at risk of B12 deficiency, regular consumption of Dungeness crab is a highly effective dietary intervention.

Immune Function and Antioxidant Defense

Selenium and zinc are both essential for immune function. Selenium is a component of glutathione peroxidase, one of the body's primary antioxidant enzymes; it also supports thyroid hormone metabolism and has been associated with reduced risk of certain cancers in observational studies. Zinc is required for the development and function of immune cells (T-cells, natural killer cells) and is one of the most common micronutrient deficiencies globally. A single serving of Dungeness crab provides 73% of the daily selenium requirement and 36% of the daily zinc requirement — a significant contribution from a single food source.

Low Mercury — Safe for Frequent Consumption

Mercury accumulates in seafood through the food chain — large, long-lived predatory fish (swordfish, shark, king mackerel, tilefish) accumulate the most. Dungeness crab, as a bottom-dwelling scavenger with a relatively short lifespan, accumulates very little mercury. The FDA classifies it as a "best choice" — the highest safety rating — meaning it can be consumed 2–3 times per week without concern, including by pregnant women, nursing mothers, and young children. This makes Dungeness crab one of the safest high-protein seafood options for regular consumption.

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Two Simple Recipes

Steamed Dungeness Crab with Garlic Butter

Serves 2 | 20–25 minutes (live crab) or 10–12 minutes (pre-cooked frozen crab)

Note on timing: Live Dungeness crab requires 15–20 minutes of steaming until the shell turns bright orange-red and the meat is fully cooked. Pre-cooked frozen crab (which is what most commercially sold Dungeness crab is) only needs 8–10 minutes to reheat through — overcooking pre-cooked crab makes the meat dry and rubbery.

Ingredients:

• 2 whole Dungeness crabs (live or pre-cooked frozen, thawed overnight in the refrigerator)
• 4 tbsp unsalted butter
• 3 garlic cloves, very finely minced
• 1 tbsp fresh lemon juice
• 1 tsp lemon zest
• 1 tbsp fresh flat-leaf parsley, chopped
• Flaky sea salt
• Lemon wedges for serving

Method: Fill a large pot with 2 inches of water; bring to a boil; place crabs in a steamer basket above the water; cover tightly; steam 15–20 minutes (live) or 8–10 minutes (pre-cooked frozen) until heated through. While the crab steams: melt butter in a small saucepan over low heat; add garlic; cook gently 2–3 minutes until fragrant (not browned); add lemon juice and zest; remove from heat; stir in parsley and flaky salt. Serve the crab with the garlic butter for dipping and lemon wedges on the side.

Dungeness Crab Salad

Serves 2 | 10 minutes

Ingredients:

• 1 lb Dungeness crab meat, picked and checked for shell fragments
• 2 cups mixed greens or arugula
• 1 ripe avocado, diced
• 1 cucumber, thinly sliced
• 2 tbsp fresh lemon juice
• 1 tbsp extra-virgin olive oil
• 1 tsp Dijon mustard
• 1 tbsp fresh chives or tarragon, finely chopped
• Flaky sea salt and white pepper

Method: Whisk together lemon juice, olive oil, Dijon, and chives; season with salt and white pepper. Arrange greens, avocado, and cucumber on two plates; top with crab meat; drizzle with dressing; serve immediately. Do not toss — the crab meat is delicate and will break into small pieces if tossed aggressively; drizzle the dressing over the top and let each person mix their own portion.

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Shop Dungeness Crab

• 🔗 Dungeness Crab Clusters
• 🔗 Dungeness Crab Whole
• 🔗 Dungeness Crab Meat (picked)
• 🔗 Dungeness Crab Merus Meat

🎥 Watch Dungeness crab cooking tutorials on the Global Seafoods YouTube Channel

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FAQs: Dungeness Crab Nutrition

How does Dungeness crab compare to other protein sources nutritionally?

Dungeness crab compares favorably to most other protein sources on a calorie-per-gram-of-protein basis. At approximately 110 calories and 22g of protein per 3.5 oz serving, it has a protein density comparable to chicken breast (31g protein per 3.5 oz, ~165 calories) but with significantly more micronutrient value — particularly vitamin B12 (375% DV vs. ~14% DV in chicken), selenium (73% DV vs. ~27% DV in chicken), and omega-3 fatty acids (400mg vs. negligible in chicken). Compared to beef (26g protein per 3.5 oz, ~250 calories for lean ground beef), Dungeness crab provides similar protein with far fewer calories and saturated fat, and dramatically more B12, selenium, and omega-3s. The primary nutritional advantage of Dungeness crab over land-based proteins is the combination of high protein, very low saturated fat, high omega-3s, and exceptional micronutrient density in a single food.

Is Dungeness crab safe to eat during pregnancy, and how much is recommended?

Yes — the FDA classifies Dungeness crab as a "best choice" for consumption during pregnancy, meaning it can be eaten 2–3 times per week (8–12 oz per week) without concern about mercury exposure. This is the highest safety rating the FDA assigns to seafood. Dungeness crab's very low mercury content, combined with its high omega-3 (DHA) content — which supports fetal brain and eye development — makes it one of the most beneficial seafood choices during pregnancy. The FDA and EPA jointly recommend that pregnant women eat 8–12 oz of low-mercury seafood per week; Dungeness crab qualifies. Ensure the crab is fully cooked (internal temperature 145°F) — raw or undercooked shellfish carries a risk of Vibrio and Listeria infection, which are particularly dangerous during pregnancy.

What is the cholesterol content of Dungeness crab, and should people with high cholesterol avoid it?

Dungeness crab contains approximately 76mg of cholesterol per 3.5 oz serving — moderate compared to other shellfish (shrimp: ~189mg per 3.5 oz; lobster: ~145mg per 3.5 oz). Current dietary guidelines (2020–2025 Dietary Guidelines for Americans) no longer set a specific daily cholesterol limit, reflecting the scientific consensus that dietary cholesterol has a smaller effect on blood cholesterol levels than previously believed — saturated fat and trans fat have a much larger effect. Dungeness crab is very low in saturated fat (approximately 0.2g per 3.5 oz serving), which is the dietary fat most strongly associated with raising LDL cholesterol. For most people, including those with elevated cholesterol, Dungeness crab is a heart-healthy protein choice. People with specific medical conditions should consult their physician or registered dietitian for personalized guidance.