Crab guts are generally not harmful. However, if the crabs have been feasting on toxic algae, there could be traces of domoic acid within their digestive tracts, which can lead to poisoning. If you're unsure about the crab's source, it's safest to skip this part.

Crab Soup is a Perfect soup , a good remedy for Cold & Cough and also low in calorie,low in fat and have Omega-3 fatty acids. I never cooked crab before ,but recently preparing soups often as my LO Shn gets cold often.

Crab has an impressively low-fat content per serving compared to other sources of protein. To be more specific, 100 grams of crabmeat has just 0.2% fat.

CRAB CONTAINS LONG-CHAIN OMEGA-3 FATTY ACIDS Rich in vitamins and minerals, crab meat is also low in fat and contains Omega-3 polyunsaturated acids. Helps provide protection from heart disease and aids brain development. Some research suggests that Omega-3 also inhibits aggressive behavior.