2. In fact, it is almost a way to lose weight on an empty stomach, mainly to clean up the impurities in the gastrointestinal tract, excrete them, and then spend every day in a lifestyle of sitting, meditating or sleeping. Pay attention to check your saliva secretion, urine volume and color every day. If you are thirsty, drink clear water in time to replenish your body's water and prevent dehydration and collapse.
3. If the body feels weak, dizzy, cold limbs, fatigue, hypoglycemia, and unbearable hunger, you should stop slimming methods such as crossing the valley in time. For some people, three to five days is the first time to adopt the limit of the grain-crossing method. Some obese people with sufficient energy reserves can persist for seven days or even longer. Taoist people believe that eating whole grains will accumulate toxins in the body, and breaking grain regularly can expel toxins, enhance resistance, achieve the effect of prolonging life, and also lose weight and lower blood sugar. But it must be different from person to person and must be carried out under the condition of ensuring safety.