On 15/9, Chosun Biz reported that Lee Soo-min posted before-and-after photos on social media, showcasing her transformation from 85 kg to 59 kg. She aims to lose another 10 kg to return to her original weight of 49 kg, continuing the diet while caring for her child.
Her weight loss secret is the "switch-on" diet, developed by Professor Park Yong-woo, an obesity specialist at Kangbuk Samsung Hospital. This diet is based on three core principles: high-protein meals, intermittent fasting, and improved gut health. It eliminates sugar, alcohol, and processed foods.
According to the NY Post, the switch-on diet lasts four weeks, with each week focusing on a specific phase of metabolic reset.
For the first three days, dieters consume 4 protein shakes daily, along with probiotics, and walk for an hour. If hungry, they can supplement with small amounts of unsweetened yogurt, tofu, or high-fiber vegetables. From the 4th day, a high-protein, low-carb lunch is added, such as pan-fried chicken breast, grilled salmon, or lean beef stir-fried with mushrooms and boiled vegetables.
Intermittent fasting begins in the second week. Dieters fast for 24 hours once a week, consuming protein shakes, a low-carb lunch, and a no-carb dinner. Foods like rice, beans, nuts, and black coffee are allowed in limited quantities. Strenuous exercise is discouraged during fasting to allow for muscle recovery.
During the final two weeks, fasting increases to two to three times a week, 24 hours each time, to accelerate fat burning. The eating pattern of week two continues, with the addition of low-sugar fruits like berries, apples, or sweet potatoes after exercise.
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Lee Soo-min during pregnancy and after losing 26 kg. Photo: Lee Soo-min |
Lee Soo-min during pregnancy and after losing 26 kg. Photo: Lee Soo-min
Experts say the switch-on diet is effective for reducing body fat and stabilizing blood sugar, particularly beneficial for those looking to lose belly fat. However, 24-hour fasting can lead to low blood sugar or dizziness.
Long-term use requires caution, as it may lead to overeating and weight regain. Those with average weight attempting this diet may experience side effects like lethargy and depression due to low energy.
Individuals with conditions like diabetes, hypoglycemia, heart disease, or kidney problems should consult a doctor before starting. Women should also consider their menstrual cycle, as this diet may worsen menstrual cramps or pain.
Binh Minh (From Chosun Biz, NY Post)
