Yes, fried gizzards are a great source of lean protein. In fact, a serving of gizzards contains 90% of your daily protein intake! However, fried gizzards are more fattening than regular gizzards. This is due to the fact that the gizzards are fried before being used. Fried foods are high in calories and fat, but when prepared in an air fryer, they are healthier because there is no oil involved.