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The Science Behind Extreme Diet Risks
Doctors explain that when calorie intake drops too low, the body enters “starvation mode.” In this state, it begins breaking down muscle tissue for energy, including heart muscles. Electrolyte levels — such as sodium and potassium — drop dangerously, affecting nerve and heart function.
Some detox diets also promote excessive water or laxative use, leading to dehydration and electrolyte depletion. Combined with fasting, this creates a perfect storm for cardiac failure — especially in young women with smaller body mass.
