1. Whole body exercise: Swimming is a whole body exercise, and almost all muscle groups will participate in swimming. This helps to improve the metabolic rate, thus burning fat more effectively.

2. Aerobic exercise: Swimming is aerobic exercise and needs a lot of oxygen to support muscle exercise. This helps to improve heart and lung function, enhance cardiovascular health and burn fat.

3. Low-impact sports: Compared with high-impact sports such as running and jumping, swimming has less impact on joints and is more suitable for long-term persistence. This makes swimming a sport suitable for all ages.

4. Energy consumption: When swimming, the human body needs to consume a lot of energy to maintain the balance in the water. This means that swimming can help burn more calories, thus achieving the goal of losing weight.

5. Heat consumption: When swimming, the human body can consume about 10-20 calories per minute. This is because swimming needs to overcome the resistance of water, which makes muscles need to consume more energy to complete the action.

6. Diet control: Although swimming is a good fat burning exercise, you need to pay attention to diet control to achieve the ideal weight loss effect. Through reasonable diet collocation, the effect of swimming fat burning can be further improved.

In short, swimming is a systemic, aerobic and low-impact exercise, which can help burn a lot of calories and thus achieve the goal of losing weight. At the same time, reasonable diet control is also the key to improve the effect of swimming fat burning.