Calories in Crab: Nutritional facts for Crab Types

A 100g serving of cooked crab meat contains approximately 80-150 calories.

1 kg of cooked crab meat contains approximately 800-1500 calories.

The calorie content of one whole crab depends on its size and species. A medium-sized Blue crab (around 150g of meat) would contain approximately 120-225 calories.

Crab is filled with essential nutrients that support overall health, as shown below:

• Excellent Source of High-Quality Protein: Crab is a great source of protein which is essential for building and repairing tissues. Protein also supports muscle mass and helps with overall body function. A 100-gram serving of cooked blue crab provides 15 grams of protein. Research suggests that consuming adequate protein is crucial for muscle health and recovery.
• Rich in Vitamin B12: Crab is an excellent source of vitamin B12, which is vital for nerve function, DNA synthesis, and red blood cell formation. A 100-gram serving of cooked blue crab provides a significant portion of the daily value (DV) for vitamin B12. Vitamin B12 deficiency can lead to neurological issues and anemia.
• Good Source of Selenium: Crab provides a good amount of selenium, an essential mineral that acts as an antioxidant and supports thyroid function. A 100-gram serving of cooked blue crab contains a notable amount of selenium. Studies have shown that selenium plays a role in immune function and may help protect against certain cancers. A 2017 review by Caitlyn W. Barrett discusses the role of selenium in reducing thyroid antibodies in autoimmune thyroid disease and potentially lowering the risk of certain cancers.
• Provides Copper: Crab is a source of copper, an important mineral that is essential for energy production, iron metabolism, and nerve function. A 100-gram serving of cooked blue crab provides a measurable amount of copper. Copper deficiency can lead to anemia and neurological problems.

Crab is a nutritious food that can be a great addition to a balanced diet, but eating crab has a few potential downsides as listed below:

• Potential Allergens: Crab is a common shellfish allergen, and individuals with shellfish allergies should avoid it. Allergic reactions can range from mild symptoms like hives to severe reactions like anaphylaxis.
• Cholesterol Content: Crab contains cholesterol, which may be a concern for individuals with high cholesterol levels or heart disease. It's important to consume crab in moderation as part of a balanced diet.
• Sodium Content: Some crab preparations, especially processed or canned crab, can be high in sodium. High sodium intake can contribute to high blood pressure and other health issues.

Yes, crab is considered a nutritious and healthy food because it is high in protein and important minerals. Eating crab can be a part of a balanced diet that supports overall health. The essential nutrients found in crab have been credited with several health benefits in numerous studies, including its effects on immune function, thyroid health, and overall well-being.

A serving size of 3-4 ounces of crab is generally recommended.

Moderation is key and consuming up to 6 ounces of crab in a day is generally considered safe for most adults.

The calorie content varies slightly based on the type. King crab tends to have slightly fewer calories per serving compared to Blue crab.

Crab is not used in desserts due to its savory flavor profile.

Crabs have existed for millions of years, with fossil records dating back to the Jurassic period. Evidence suggests that humans have consumed crabs since prehistoric times, with archaeological findings indicating crab consumption by early coastal populations. Ancient civilizations like Mesopotamia and along the Mediterranean utilized crabs as a food source. Indigenous peoples along the coasts of North and South America also relied on crabs as a part of their diet. As trade routes developed, the popularity of crab spread further inland. By the Middle Ages, crab was a common dish in many European coastal towns. In the 19th and 20th centuries, with advancements in fishing and transportation technologies, crab became more widely available and enjoyed across the globe. Dishes like crab cakes in the United States and chili crab in Singapore showcase the diverse culinary traditions that have embraced this versatile seafood.

The biggest crab consumers include China, the United States, and Japan. China has a large domestic market for crab, with a wide variety of crab dishes popular across different regions. The United States is another major consumer, with crab featuring prominently in coastal cuisines and seafood dishes. Japan has a strong tradition of crab consumption, with crab used in sushi, tempura, and other culinary preparations.