I have actually tried an egg-only diet myself in the past to lose weight. Eventually, even the smell of eggs made me nauseous, and my digestive health suffered significantly. Having experienced the physical toll firsthand, I can explain the risks involved. The benefits of an egg diet are clear: they are rich in protein, help prevent muscle loss, and provide long-lasting satiety. They are also affordable and convenient for busy professionals. However, from a Traditional Korean Medicine (TKM) perspective, consuming a single food item excessively can exhaust the digestive organs, leading to a state of 'Spleen Deficiency' (脾虛, Biheo). When Spleen function weakens, energy circulation is hindered, and metabolic waste known as 'Phlegm-rheum' (痰飮, Dameum) accumulates. This can cause the body to feel heavy and bloated rather than effectively losing fat. This is especially problematic for those with naturally weak digestion or chronic constipation. I recommend using eggs as a 'key supporting actor' in your meals rather than the entire cast. Always incorporate fiber-rich vegetables, and if you have a 'cold' constitution, pair your meals with warm-natured ginger tea or fermented foods. Sustainable weight loss requires nurturing the flow of 'Qi' (氣, Gi) and 'Blood' (血, Hyeol) to prevent the yo-yo effect and maintain vitality. Please consult me if you would like a dietary plan tailored to your specific constitution.