The message that prawns contain high levels pf cholesterol is confusing. Cholesterol is only found in foods of animal origin and liver, egg yolk and shellfish are the major sources of dietary cholesterol. However the level of blood cholesterol is affected more by the amount and type of fat in the diet than the amount of dietary cholesterol. 

A high intake of saturates and of all fat types can increase the amount of cholesterol produced in the liver and so the amount in the blood. This increases the risk of heart disease.

Prawns are naturally low in saturated fat, 100g contains only 0.2g. Prawns have only 99 kcal per 100g while other proteins such as beef mince contain 209 kcal  and 13.5g of fat. Prawns are even lower in fat and calories than chicken.

As well as being high in protein, prawns contain magnesium which plays a role in bone development and nerve and muscle function; zinc which is good for growing bodies and selenium which is an important antioxidant.