Health Benefits of Crab

Crabs are crustaceans, most usually found in the ocean, that are eaten in many countries around the world. They are used in many different dishes, including bisque, curry and crab cakes, as well as cooked whole, steamed, boiled, baked or fried. Some species, such as soft shelled crabs, are eaten whole. Crab is considered a delicacy in many countries and is often substituted with cheaper imitation crab meat, which may contain a small amount of real crab meat, but is mostly made from artificially flavored fish.

Crabs are generally covered with a thick exoskeleton, composed primarily of highly mineralized chitin, and armed with a single pair of chelae (claws). Crabs are found in all of the world’s oceans, while many crabs live in fresh water and on land, particularly in tropical regions. Many other animals with similar names – such as hermit crabs, king crabs, porcelain crabs, horseshoe crabs, and crab lice are not true crabs.

Plain steamed crab meat is one of the healthiest foods you can eat. For a minimal amount of calories, you get lots of protein, a multitude of minerals and several B vitamins. You may want to select certain types of crab or keep your serving size small if you are at risk of developing heart disease, though. Some types of crab have more cholesterol or sodium than others. Crab meat is an excellent source of minerals especially phosphorus, calcium, iron, zinc, potassium and copper but with low levels of carbohydrates and fat. Crab also contains chitin, which is the main constituent in the exoskeleton of arthropods and a fibrous substance made up of polysaccharides. It is also a rich source of vitamin A, vitamin B, vitamin C, vitamin B12, omega-3 fatty acids, sterol, selenium and chromium.


  • The omega-3 fatty acids found in crab are essential for preventing blood clotting and reduce arthritic pain.
  • Crab is low in carbohydrates, fat and calories thus essential for healthy functioning of the body parts and for maintaining a healthy weight.
  • The potassium present in crab are essential for regulating the blood pressure level.
  • High amount of omega-3 fatty acids in crab aid brain development and boosts memory. It also help to prevent anxiety and depression.
  • Due to crab’s constituent of calcium and phosphorus, it is suitable for maintaining healthy teeth and bone development.
  • Crab intake helps to decrease the risk of cancer attack.
  • With its diverse range of nutrients, including copper, vitamin B2, selenium and omega-3 fatty acids, crab is a wonderful food for cognition and the activity of your nervous system.
  • The phosphorus levels found in crab can help to improve kidney function, thus speeding the release of toxins from the body and helping to improve overall metabolic efficiency.


  • If you have an allergy to crab meat you should be careful not to eat it or dishes that may contain crab.
  • The symptoms of a crab allergy can be as minor as a skin rash or as dangerous as anaphylaxis.
  • It also contains moderately large amounts of purines, which are necessary for the healthy functioning of the body, but in some individuals can cause gout.
  • Crab may also easily cause food poisoning if it is not treated and prepared correctly.

Nutritional Information:




Vitamin C

Vitamin B12



Crab, cooked, moist heat (100g)


128 mg

23.7 g

7.2 mg

10.4 mcg

44.4 mcg

75.1 g


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