The main methods for rapid weight loss include strict control of diet, high-intensity interval training, short-term extremely low calorie diet, medication assisted treatment, surgical weight loss, etc. Rapid weight loss may come with health risks, and it is recommended to do so under the guidance of a doctor.

1. Strictly control diet
Adopting a ketogenic or low carbohydrate diet can reduce water and fat storage in the short term. Control daily carbohydrate intake below 50 grams and increase intake of high-quality protein and healthy fats. Long term execution may lead to nutritional imbalance, symptoms such as fatigue and constipation. Suggest pairing with multivitamin tablets to supplement micronutrients.
2. High intensity interval training
HIIT training can continuously burn calories after exercise by alternating short bursts of exercise and rest. Perform 4-5 20 minute training sessions per week, including squats, boby jumps, and other movements. This type of exercise may increase joint burden, and people with joint diseases should avoid it. Warm up and stretch thoroughly before and after exercise.
3. Short term extremely low calorie diet
A daily intake of 800-1200 calories of extremely low calorie diet should be carried out under medical supervision, usually lasting for 2-12 weeks. The dietary pattern of using meal replacement milkshakes with a small amount of vegetables may cause adverse reactions such as hypoglycemia and dizziness. This method is not suitable for pregnant women, adolescents, and those with a history of eating disorders.

4. Medication assisted therapy
Orlistat capsules reduce fat absorption by inhibiting lipase, while liraglutide injection can delay gastric emptying and increase satiety. Strict evaluation of indications is required for use, and side effects such as fat diarrhea and nausea may occur. It is prohibited to purchase and take it by oneself. It must be prescribed by an endocrinologist and monitored for liver function.
5. Surgical weight loss
Sleeve gastrectomy and gastric bypass surgery achieve weight loss by changing the structure of the digestive tract, suitable for severely obese patients with a BMI greater than 35. After surgery, lifelong supplementation of nutrients such as vitamin B12 and iron is required, which poses surgical risks such as anastomotic leakage and dumping syndrome. Implementation requires evaluation by a multidisciplinary team. After rapid weight loss, rebound may occur. It is recommended to gradually transition to a balanced diet, with a daily intake of no less than 1200 calories. Increasing resistance training helps maintain muscle mass, with 150 minutes of moderate intensity aerobic exercise per week. Regularly monitor body fat percentage and basal metabolic rate to avoid significant weight fluctuations that can burden the cardiovascular system. If abnormal symptoms such as palpitations and hair loss occur, seek medical attention promptly.

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