This meta-analysis investigated relationships between self-compassion and (1) physical health and (2) health-promoting behaviour in a large pooled sample (N = 29,588) sourced from 94 peer-reviewed articles. As hypothesised, omnibus analyses revealed positive associations between self-compassion and both physical health (r = .18) and health behaviour (r = .26). Moderation analyses using 290 effects found that both associations varied according to health domain, participant age, intervention duration, and self-compassion measure. Self-compassion predicted outcomes in most health domains, with the strongest effects observed on global physical health, functional immunity, composite health behaviour, sleep, and danger avoidance. It did not predict frailty, maladaptive bodily routines, and substance abuse. Multi-session interventions designed to boost self-compassion predicted increased physical health and health behaviour, thereby supporting causal links between self-compassion and health outcomes. The effects of single-session inductions were non-significant. The mean effect of self-compassion on physical health was non-significant for young participants (12.00-19.99) and its effect on health behaviour was weakest among older participants (40.00+). Results support the proposition that self-compassion can promote better physical health. Practical implications of these findings are discussed.
Keywords: Self-compassion; health behaviour; physical health; self-compassion interventions; wellbeing.