Alison Buttenheim, Harsha Thirumurthy, and two colleagues from Wits University in South Africa published a commentary in The Lancet Global Health – Maximising the value of nudge units for global health. The commentary reflects on the work of the Indlela nudge unit in South Africa over the past three years. It also addresses the need for nudge units and behavioral scientists engaged in global health research to invest in strengthening local capacity.