2. Shrimp is high in nutrients such as protein, calcium, phosphorus and vitamins, but low in starch and fat, so it is classified as a non-fattening food. But whether eating prawns will lead to obesity depends on the intake of prawns and the cooking methods of prawns. Eating boiled shrimp in moderation won't make you fat. If you eat too much fried shrimp or shrimp meat at night, you may get fat because of reduced energy consumption at night.