Precautions during weight loss: 1, don't lose weight too fast, because if you lose weight too fast, it will lead to a lot of fat decomposition in the body and produce too many ketone bodies. If it is deposited in the body, it will easily lead to ketoacidosis. If you lose weight too fast, fatigue and hunger will be more obvious, which is not conducive to the persistence of various weight loss measures and is easy to harm your health. 2. Don't control your food intake excessively. If you go on a diet excessively, it will lead to insufficient basic energy supply, and obvious hunger and hypoglycemia may occur, which is not conducive to your health. 3. Don't exercise too hard during weight loss, otherwise a large number of decomposed substances will compete with the decomposed substances of fat, resulting in an increased burden on the kidneys.