Crustaceans, crab, dungeness, raw

Crustaceans, crab, Dungeness refers to the raw edible meat of the Dungeness crab (scientific name Metacarcinus magister), a species of edible crab native to the Pacific Northwest coast of North America from Alaska to California. Named after the coastal town of Dungeness in Washington State, this crab is part of the family Cancridae and is widely recognized for its sweet, tender meat and robust nutritional profile. Dungeness crab has a broad, oval carapace, reddish‑brown in color with white‑tipped claws and multiple pairs of walking legs. It is distinct from other commercial crab species such as King crab or Blue crab due to its size, flavor, and regional prominence. Wild‑caught in the cold Pacific waters, Dungeness crab is a staple of West Coast seafood cuisine and is harvested with sustainable management practices to support both ecological balance and local economies. Historically, Indigenous peoples along the Pacific coast have relied on crab as a nutritious food source for generations, and today, recreational and commercial fisheries continue to value it for its economic and cultural importance. The crab’s distribution includes intertidal zones and subtidal waters, where it forages on clams, worms, small fish, and other crustaceans. The species’ adaptability and prolific reproductive strategies allow it to thrive in diverse marine habitats. Although there are variations in individual size and seasonal abundance, Dungeness crab’s reputation as a premium seafood has led to its inclusion in a variety of culinary traditions, from simple steamed crab legs to more elaborate dishes like crab bisque, crab cakes, and chilled crab salads. The raw meat itself, as described in this page, forms the foundation of many recipes and nutritional analyses, prized for its lean protein content, essential micronutrients, and balanced flavor profile.

The nutrition profile of raw Dungeness crab, based on USDA FoodData Central values, emphasizes its status as a lean, nutrient‑rich seafood option. At approximately 86 kcal per 100g, most of the energy comes from high‑quality protein (17.41g) with minimal fat (0.97g total fat) and carbohydrates (0.74g) making it particularly suitable for low‑carb or weight‑management diets. The protein in Dungeness crab contains all essential amino acids, supporting tissue repair and muscle maintenance. Its amino acid profile contributes to functions such as neurotransmitter synthesis and immune responses. Crab meat is notably rich in micronutrients. For example, it provides 44 µg folate, 27 µg vitamin A RAE, and 3.5 mg vitamin C per 100g. These vitamins contribute to cellular energy metabolism, antioxidant defenses, and immune function. The mineral content includes 354 mg potassium, which supports fluid balance and nerve function, 46 mg calcium for bone health, 0.37 mg iron for oxygen transport in blood, and 295 mg sodium. Consumers should be aware that while sodium is naturally present, the levels are moderate and typically lower than processed seafood products. One of the standout micronutrients in Dungeness crab is vitamin B12, important for nerve function and red blood cell formation, often found in seafood in much higher levels than plant sources. In addition, minerals like zinc (4.27 mg) and selenium (37.1 µg) support immune function, antioxidant protection, and thyroid regulation. Selenium, in particular, plays a role in antioxidant enzyme systems and has been associated with reduced oxidative stress. Crab meat also contains trace amounts of copper, magnesium, phosphorus, and manganese, each playing roles in metabolic pathways and cellular function. While raw crab meat contains minimal fat, it does provide valuable omega‑3 fatty acids, including EPA and DHA, which are linked to anti‑inflammatory and heart health benefits found in many seafood sources. Compared to similar seafood sources, raw Dungeness crab’s nutrient density makes it competitive with cooked crab and other shellfish, providing more protein with fewer calories and fats. This nutrient density explains why many dietary guidelines recommend seafood in place of higher‑fat protein sources for improved cardiovascular health outcomes.

Dungeness crab offers multiple health benefits supported by nutrition research and authoritative health sources. First, crab is an excellent source of high‑quality protein, essential for muscle synthesis, immune function, and maintenance of lean body mass. Protein also aids in satiety, which can support weight management efforts. Research on omega‑3 fatty acids demonstrates that the long‑chain polyunsaturated fats, including EPA and DHA present in seafood, are associated with reduced inflammation and improvements in heart health metrics. A 2024 comprehensive review on omega‑3s highlights their role in supporting cardiovascular and cognitive health by reducing triglycerides, improving endothelial function, and modulating inflammatory pathways. While Dungeness crab contains lower amounts of omega‑3s than fatty fish like salmon, its contribution still supports a balanced diet rich in anti‑inflammatory fats. Crab is also rich in vitamin B12, which is crucial for nerve function, red blood cell production, and DNA synthesis; deficiencies can contribute to anemia and neurological issues. Selenium found in crab supports antioxidant defenses by participating in glutathione peroxidase systems, which helps cell protection against oxidative stress. Zinc and copper in crab contribute to immune resilience, wound healing, and metabolic enzyme function. Additionally, seafood consumption patterns that include crab have been linked in observational studies to lower risks of certain chronic diseases compared to diets low in seafood, although most research aggregates data from multiple seafood sources rather than Dungeness crab specifically. Importantly, authoritative health information from WebMD emphasizes that crab is rich in protein, omega‑3s, vitamin B12, and selenium, nutrients associated with heart, brain, and immune health when included as part of a balanced diet.

Despite its many benefits, Dungeness crab consumption also carries potential risks for certain individuals. The most significant risk is shellfish allergy, which is one of the most common food allergies and can trigger severe reactions including hives, swelling, and anaphylaxis. Individuals with known shellfish allergies should avoid crab entirely and consult with an allergist. Another consideration is the naturally occurring sodium content; although lower than processed seafood, the level can be significant for people on sodium‑restricted diets such as those with hypertension or heart failure. While crab is generally considered a lower‑mercury seafood compared to larger predatory fish, local environmental contaminants such as heavy metals can vary by harvest location. Pregnant women, children, and individuals with compromised detoxification pathways should follow seafood consumption advisories recommending low‑mercury options and appropriate portion limits. Handling and consuming raw crab meat carries foodborne illness risks, including contamination by bacteria or parasites if not properly stored and cooked. Therefore, strict adherence to food safety practices—refrigeration, separation to avoid cross‑contamination, and appropriate cooking temperatures—is critical to prevent illness.

Source: USDA FoodData Central (FDC ID: 171968)