Peter Greaves obituary

My friend Peter Greaves, who has died aged 89, was a health and nutrition officer for Unicef whose work made a huge difference to children's lives around the world. He was an early advocate of low-cost interventions including immunisation, oral rehydration and breastfeeding.

While he was Unicef's chief nutrition adviser in the mid-1980s, he managed to get Unicef and the World Health Organization to agree on the final draft of The Ten Steps to Successful Breastfeeding. This document helped transform global maternal care policies.