The study looked at the fat content and types of fats in nine different freshwater fish species from the Yangtze River in China. They found that the amount of fat in the fish varied, with some species having more than others. The types of fats in the fish also varied, with some being better for your health than others. Some fish had more of the good fats that are important for your heart and brain. Overall, the results showed that different fish species have different types of fats, and some can be a good source of healthy fats in your diet.