Experts say: diet pills are both expensive and harmful. Still rebounding! If you are depressed and want to lose weight, exercise is good, but diet and mood are also important. In terms of the harm of diet pills, the three must complement each other. Must be taken every meal, some three times a day, some twice a day, the dose duration is short. Worried that a meal will affect the weight loss effect every day. ? The hazards of diet pills are as follows: 1. Drugs must be recognized in the body through the first-pass effect of the liver and gastrointestinal tract, then decomposed and absorbed, and then play a role after comparison. 2. Limited by the absorption mechanism in vivo and in vitro, the absorption of tablets is 5% after the first-pass effect, and the absorption of liquid is generally 25%. Then you think, the rest of the drugs are either excreted or left in the body to have negative effects. 3. The role of diet pills is generally to reduce water in the body (increased defecation times, easy to cause dehydration) and protein, so weight loss, body shape generally does not change much, especially easy to rebound. 4. Oral diet pills should suppress appetite, and 85% of the nutrients needed by the human body come from the food we eat every day, so dieting affects the nutritional needs of the body and easily leads to various functional disorders in the body. Affect health.