Uses ~7700 kcal per kg lost (rough rule).
Very rough; metabolism varies.
Uses ~7700 kcal per kg lost (rough rule).
Uses the rough rule ~7700 kcal ≈ 1 kg of body mass change, so days ≈ (kg × 7700) ÷ daily deficit. Deficit is capped to a broad plausible range; very long timelines are rejected. Educational heuristic only.
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