In our country, India, crab has been considered a coastal staple for centuries, especially in states like Kerala and Goa, known for spicy crab curries, and West Bengal for Kosha Kakra. Crab is a shellfish that is not only known to offer rich and distinctive flavour but also various nutrients to Indian consumers. Reading all the health benefits of eating crab will prove that it requires more attention than it currently does in everyday Indian diets. In this article, we are going to cover scientifically verified nutritional data, benefits of this seafood that are backed by evidence, and ways to include these crustaceans in your daily meals.
Nutritional Value of Crab
The data on the vitamins and minerals below is for 100 g of cooked crab meat.
| Nutrient | Amount | % Daily Value |
| Calories | ~97 kcal | — |
| Protein | ~19–20g | ~38% DV |
| Total Fat | ~1.5g | ~2% DV |
| Carbohydrates | 0g | 0% |
| Omega-3 (DHA + EPA) | ~0.4–0.5g | — |
| Vitamin B12 | ~9–11 mcg | ~375% DV |
| Selenium | ~40 mcg | ~73% DV |
| Phosphorus | ~230 mg | ~23% DV |
| Copper | ~0.7 mg | ~78% DV |
| Zinc | ~3.5 mg | ~32% DV |
| Folate | ~36 mcg | ~9% DV |
Crab is high in quality protein but low in total carbohydrates and very low in saturated fats. It stands out among all the other commonly consumed shellfish in India, and the reason is its exceptional content of Vitamin B12 and copper. It’s one of the most micronutrient-rich foods per calorie available in the market.
7 Health Benefits of Eating Crab
Supports Heart Health
Crab contains omega-3 fatty acids (DHA & EPA), which may help lower triglyceride and cholesterol levels while reducing blood clotting.1 It may also help you reduce the risk of irregular heartbeat and cardiovascular disease. This is extremely relevant to our country, India, where the mortality rate is high due to heart diseases.
Prevents Anaemia
Crab provides around 375 to 400% of the daily Vitamin B12 requirement per 100g serving. It also has a meaningful level of folate. Both these nutrients are extremely beneficial for the formation of red blood cells.2 People in India suffer from Vitamin B12 deficiency, especially vegetarians, which can be addressed by consuming crab regularly.
Boosts Brain Health
According to research published by the Journal of the American Medical Association, one can reduce the risks of dementia and Alzheimer’s disease by regularly consuming crab.3 In addition, it also has a powerful combination of omega-3 fatty acids, selenium, vitamin B2 (riboflavin), and copper, which are known to reduce oxidative stress and inflammation in brain tissue.4 As a result, these nutrients may support healthy brain function and long-term cognitive function.
Strengthens Bones and Teeth
The human body contains two important minerals in abundance: first is calcium, and the second is phosphorus. Crab contains a good amount of phosphorus, which may support bone health by maintaining bone density and promoting healthy skeletal development & 5; may also prevent osteoporosis, a disease very common in older Indian individuals. 6
Improves Blood Circulation
The copper that crab contains plays a direct role in helping your body absorb iron and in the production of red blood cells. 7 As a result, circulation improves, and one recovers faster from an illness or an injury. It also supports maintaining the health of nerves, immune cells, and blood vessels.
Supports Immune Function and Thyroid Health
Crab is known to contain both selenium and zinc in sufficient quantities. Both of these nutrients are known to boost your immune system. Selenium additionally plays a critical role in thyroid hormone metabolism 8 and antioxidant defense, protecting cells from free radical damage.
Supports Diabetes Management
Zero carbs and zero sugar content make crab excellent for diabetes. It is also rich in chromium, which helps insulin metabolise glucose more effectively, lowering blood glucose levels. Its high protein content helps in weight loss, which is important for type 2 diabetes patients.
How to Include Crab in Your Diet
One can easily integrate crab into Indian cooking traditions, and it can also be used in multiple preparations, some of which are mentioned below:
- Kerala-style crab curry: It is a coconut milk-based dish that pairs well with appam and rice. It preserves a good amount of omega-3 content.
- Mangalorean crab ghee roast: This is a dry coastal dish prepared using traditional spices. It’s both flavourful and nutrient-rich.
- Bengali kosha kakra: This is a dry crab dish prepared using mustard. It’s a traditional favourite that is commonly served with steamed rice.
- Light crab soup: Perfect for Individuals who are calorie-conscious and want something high in nutrition with minimal fat.
Opt for the best cooking methods like steaming, grilling & baking as these preserve maximum nutrients. Don’t deep-fry, as it adds to the calories and sodium, reducing the omega-3 content.
Vs. Other Seafood
We have compared crab with lobster, as it is the closest substitute available in the market.
| Nutrient (per 100g) | Crab | Lobster |
| Calories | ~97 kcal | ~89 kcal |
| Protein | ~19–20g | ~20–22g |
| Omega-3 | Higher | Lower |
| Vitamin B12 | Higher | Moderate |
| Copper | High | Low |
| Mercury | Low | Low – moderate |
Final Verdict
For Indian consumers looking for a complete nutritional shellfish, crab is a perfect fit. Its vitamin B12 content directly addresses the widespread nutrient deficiency, while its lethal combination of omega-3, selenium, copper, and phosphorus makes it an excellent dietary choice. Just supply them from reputable coastal suppliers and use recommended cooking methods & they will find a purposeful place on your plate.
FAQ’s about the Benefits of Crab Eating
Is eating crab healthy?
Yes, crab is healthy as it contains protein, omega-3, selenium and zinc. If prepared healthily, it can support your cardiovascular, brain, and bone health and even your immunity.
Is it safe for pregnant women to consume crab?
Yes, pregnant women can safely consume crab in moderation, as it has required vitamins and minerals for Foetal development.
How often can you eat crab?
2-3 servings per week (100-150g) as per the FDA. If you suffer from high cholesterol or cardiovascular disease, it is recommended to monitor your intake.
Which Indian crab is the healthiest?
Swimming crabs, also known as blue swimmer crabs, are one of the healthiest. Opt for wild-caught rather than farmed ones.
Is crab good for fatty liver?
Yes, but if consumed in moderation. It’s High-protein support liver regeneration. Avoid deep frying and sodium-heavy sauces. Steam or boil, as it provides maximum hepatic benefits.
What should you avoid when eating crab?
Avoid gills, also known as dead man’s fingers, viscera (internal organs/brown meat) and raw/uncopoked meat. They are known to contain toxins and foodborne pathogens.
References:
https://pmc.ncbi.nlm.nih.gov/articles/PMC5855754/
https://pmc.ncbi.nlm.nih.gov/articles/PMC12584156/
https://pubmed.ncbi.nlm.nih.gov/37028557/
https://pmc.ncbi.nlm.nih.gov/articles/PMC7117565/
https://pmc.ncbi.nlm.nih.gov/articles/PMC12236046/
https://pmc.ncbi.nlm.nih.gov/articles/PMC4389665/
https://pubmed.ncbi.nlm.nih.gov/30215866/
https://pmc.ncbi.nlm.nih.gov/articles/PMC5234233/
https://pmc.ncbi.nlm.nih.gov/articles/PMC11849045/
