How Chef Kwon Sung-jun Lost 10kg in 6 Months: The Chicken Breast & Multigrain Diet

Chef Kwon Sung-joon’s Six-Month Weight Loss Routine

During the broadcast, Chef Kwon opened his refrigerator to reveal his primary food staple, chicken breast. He explained that while he eats more flexibly during television shoots as a form of cheat day, his standard daily regimen consists of chicken breast and rice for his morning and evening meals. By maintaining this structure with multigrain rice, he achieved a 10-kilogram weight reduction over a six-month period.

Nutritional Benefits of Chicken Breast

Chicken breast functions as a staple in weight management diets due to its high-protein, low-calorie profile. A 100-gram serving contains approximately 100 to 110 calories paired with 20 to 25 grams of protein.

The protein content helps prevent muscle loss while preserving basal metabolic rate. Restrictive diets that involve unmanaged fasting often lead to the loss of both body fat and muscle tissue, increasing the likelihood of weight regain. The protein in chicken breast repairs and maintains muscle tissue after exercise, supporting a toned physical structure during weight loss. Protein also takes longer to digest than carbohydrates or fats, stimulating the brain's satiety center gradually to suppress hunger and reduce cravings for snacks.

Replacing White Rice with Multigrain Rice

While white rice digests rapidly and causes sharp blood sugar spikes that store excess glucose as body fat, multigrain options containing ingredients like brown rice, oats, and black rice affect the body differently.

The outer layers of whole grains are rich in dietary fiber, which slows down digestion. This allows glucose to enter the bloodstream gradually, preventing excessive insulin release and supporting metabolic health.

Culinary Methods and Practical Adjustments

Consuming plain chicken breast and bland multigrain rice daily can lead to diet fatigue. To maintain the routine over the long term, several culinary strategies improve flavor and texture:

• Moisture Enhancement: Boiling chicken breast with bay leaves, whole black peppercorns, and garlic removes gamey flavors. Alternatively, using low-calorie steam-cooked or sous-vide chicken breast products yields a tender texture, which can be paired with olive oil or low-sugar sauces.
• Grain Ratio Adaptation: Transitioning directly to 100% brown rice can cause dietary resistance. Starting with a 7-to-3 ratio of white rice to multigrain rice and gradually shifting to a 5-to-5 ratio or higher helps the palate adjust.
• Vegetables and Healthy Fats: Adding vegetables such as cherry tomatoes, cabbage, and broccoli alongside a light dressing of olive oil and balsamic vinegar balances nutrient intake and increases satiety.

Routine Management and Exercise Integration

Sustaining a weight loss regimen depends on establishing consistent habits rather than relying solely on individual food choices. Distributing protein intake across breakfast, lunch, and dinner maximizes the efficiency of muscle protein synthesis compared to consuming the daily total in a single meal. Because high protein intake places demands on the kidneys, drinking 1.5 to 2 liters of water daily helps flush metabolic waste, while selecting low-sodium chicken breast products prevents fluid retention.

Dietary controls are most effective when paired with physical activity to prevent muscle loss and overcome plateaus. Resistance training, such as squats, lunges, and push-ups focusing on major muscle groups three to four times per week, allows dietary protein to build functional muscle mass, raising the resting metabolic rate. Complementing this with cardiovascular exercise, such as brisk walking, light jogging, or cycling for 30 minutes three times weekly, supports fat loss and cardiovascular health.