The rate of full breastfeeding at one month of age is higher than 50% in the U.S. and Japan. In Japan, about half of six month old babies are fully breastfed, while in other countries, the percentage of fully breastfed babies has fallen and formula milk is used in combination. Particularly in China and Singapore, only a few percent of six month old babies are fully breastfed.

Japan 厚生労働省, 「平成27年度乳幼児栄養調査結果の概要」(2015) Retrieved April 13, 2020, from https://bit.ly/2CTsadB China China Development Research Foundation, "中国母乳喂养影响因素调查报告" (February 2019) Retrieved July 27, 2020, from https://bit.ly/2WXxuUb Singapore Statistaics Singapore "Prevalence of breastfeeding in Singapore" (2013) Retrieved July 27, 2020, from https://bit.ly/2P0yQsE United States Centers for Desease Control and Prevention, "National Immunization Survey (NIS)" (2016) Retrieved July 27, 2020, from https://bit.ly/2EhScr7 United Kingdom Unicef United Kingdom, "Infant feeding Survey" (2010) Retrieved July 27, 2020, from https://bit.ly/3hH7qUW