One kind of fat burning is that when you are hungry for a long time or consume a lot of energy, the fat in adipose tissue will be mobilized, and then the fat will start to burn. This is why many people say that they lose weight when they are hungry.
The other is exercise, especially aerobic exercise. Running is one of the better exercises to lose weight and burn fat. Fat is usually consumed at the moment we start running, but with the change of running time, the efficiency of burning fat is also dynamic.
The three major energy-supplying substances of the human body: sugar, fat and protein, all provide energy when we run together, but the proportions are different in different situations.
In the first 30 minutes of aerobic exercise, the consumption of sugar is greater than that of fat, that is, the energy supply ratio of sugar is greater than that of fat, but after 30 minutes, the energy supply ratio of sugar and fat crosses, and then the energy supply ratio of fat increases and the energy supply ratio of sugar decreases, so the efficiency of burning fat tends to be the best after 30 minutes.