No-exercise

Weight loss without exercise is physiologically achievable through dietary calorie deficit alone. Hall et al. (2019): reducing ultra-processed food reduced intake by 500 kcal/day ad libitum. Weigle 2005: high protein (30%) reduced intake by 440 kcal/day. NICE CG189: 0.5–1 kg/week is achievable without exercise. Exercise matters more for long-term weight maintenance than initial loss. This article covers dietary-only strategies ranked by evidence.

Approximately 70–80% of weight loss is determined by diet rather than exercise in controlled trials. The most evidence-supported diet-only strategies are protein increase (+440 kcal/day spontaneous reduction), ultra-processed food reduction (+500 kcal/day reduction), and calorie tracking. This article covers what works without exercise.