Across 18 RCTs, caregiver "self-care" remains underdefined in the literature — giving GiveCare explicit permission to define its own practical micro-intervention taxonomy because the field lacks a clean one.
Most reviewed interventions concentrate on mental health and individual coping capacity, which GiveCare uses to justify keeping those primitives but not stopping there.
The review flags neglected domains (disease prevention, physical health, self-monitoring, health literacy, decision-making, health-system linkage) that GiveCare treats as deliberate additions to its primitive set.
The pooled effect is small-but-significant on depression and weaker on anxiety and physical health, supporting modest, honest non-clinical framing rather than outcome claims.
The evidence gaps map onto GiveCare's choice to include health-system linkage and decision-support as one-next-step primitives, not just emotion-focused content.