Nichkhun, the 38-year-old member of the veteran K-pop group 2PM, recently turned heads by sharing his extreme method for rapid weight loss.
Nichkhun and his fellow bandmates appeared on the SBS variety show No, But Seriously!, where the conversation inevitably shifted to his changing physical appearance. After a recent YouTube video captured the singer looking slightly heavier than usual, online commentators quickly reacted with remarks like, "He gained weight." However, at a subsequent concert in Japan, Nichkhun shocked audiences by showcasing a perfectly chiseled jawline once again.
"At the beginning of the year, my schedule was relatively light, so I stayed at my parents' home in Thailand and ate a lot," Nichkhun explained during the broadcast. "When I saw myself on screen later, I thought, 'I am truly aging.' I was deeply shocked."
Determined to get back into shape ahead of the Japan performance, Nichkhun turned to an ultra-short-term diet strategy. "For three days, I lost the weight by eating only three eggs," he revealed. While the dramatic transformation delighted fans, it raises a critical medical question: why do eggs feature so prominently in emergency crash diets, and how should individuals combat the age-related weight gain Nichkhun described?
The Illusion of Rapid Weight Loss
The strict meal plan described by Nichkhun breaks down to just one egg per day, yielding a meager 210 to 240 calories daily. Given that an adult male requires approximately 2,000 to 2,500 calories per day to maintain baseline health, this regimen creates a massive daily deficit of 1,700 to 2,200 calories.
Medical experts point out that the resulting drop on the scale is not driven by the inherent properties of eggs, but rather by severe caloric starvation. Under such extreme restriction, the body rapidly depletes its glycogen stores, flushing out the heavy volume of water bound to them. While this fluid loss sharply redefines facial features and jawlines, it is accompanied by a severe drop in muscle mass, acute fatigue, dizziness, and diminished physical performance. Once normal eating habits resume, the body quickly replenishes its water weight, triggering a sharp rebound commonly known as the "yo-yo effect." Consequently, the drastic measures celebrities deploy to prepare for high-stakes performances or photoshoots carry substantial physiological risks if adopted by the general public.
Even so, eggs remain a staple of short-term dieting for specific nutritional reasons. While they are by no means a magic fat-burning food, eggs provide high-quality protein and exceptional satiety relative to their low caloric footprint. This helps dieters endure extreme hunger pangs while mitigating the sheer muscle wasting that occurs during total fasting. Furthermore, because eggs contain virtually zero carbohydrates, they prevent sharp spikes in blood glucose levels.
However, these nutritional benefits are only realized within a balanced dietary framework. A three-day regimen limited entirely to three eggs provides a mere 18 to 20 grams of total protein—far below the daily baseline requirement for an adult man. Such a severe deficit fails to protect lean muscle tissue and leaves the body entirely starved of essential dietary fiber, vitamin C, calcium, and vital micronutrients.
Decoding Age-Related Weight Gain
Many individuals notice that upon entering their 30s and 40s, maintaining their baseline physique becomes increasingly difficult despite maintaining identical eating habits. However, clinical research indicates that this phenomenon is driven less by chronological age itself and more by a gradual decline in skeletal muscle mass and overall physical activity.
For instance, an individual who easily maintained their weight in their 20s on a ,2400-calorie daily diet may find their baseline maintenance threshold dropping to 2,100 or 2,200 calories by their 30s and 40s due to subtle muscle loss and sedentary lifestyles. When caloric intake remains unchanged, these surplus calories are steadily stored as visceral and subcutaneous fat. This metabolic shift is further compounded by age-related hormonal fluctuations—specifically declining testosterone in men and shifting estrogen in women—which naturally accelerate abdominal fat accumulation. When coupled with modern lifestyle factors such as late-night corporate dinners, alcohol consumption, and chronic sleep deprivation, managing weight becomes an uphill battle.
Rather than resorting to hazardous crash diets, clinical experts advise individuals to manage weight sustainably by reducing their daily caloric intake by a modest 300 to 500 calories below their maintenance threshold. Severe starvation triggers a drop in the body's basal metabolic rate, making long-term weight management nearly impossible.
Instead, the focus must shift toward maximizing protein intake to counter "anabolic resistance"—an age-related decline in the body's capacity for muscle protein synthesis. Consuming roughly 1.0 to 1.2 grams of protein per kilogram of body weight daily, combined with structured resistance training, remains the gold standard for shedding fat while preserving vital lean muscle. Rather than eliminating carbohydrates entirely, a healthy diet should prioritize complex carbohydrates such as brown rice, whole grains, and sweet potatoes to ensure steady energy and sustained metabolic health.
