Prawns are lean seafood products, and the proportion of polyunsaturated fatty acids make up about 50% of the total fatty acids in prawns. By eating approximately 100 g prawns the daily need for omega-3 will be covered and one gets a lot of valuable protein. Prawns are also an excellent source of vitamin E (approximately 4 mg/100g). Vitamin E is an important antioxidant and important for the utilization of vitamin A. In addition, the prawns have a relatively large amount of calcium (about 34 mg/100g). Calcium is important for building the skeleton. Prawns do not contain carbohydrates.