RT Journal Article SR Electronic T1 Use of social media platforms by manufacturers to market breast-milk substitutes in South Africa JF BMJ Global Health JO BMJ Global Health FD BMJ Publishing Group Ltd SP e003574 DO 10.1136/bmjgh-2020-003574 VO 5 IS 12 A1 Pereira-Kotze, Catherine A1 Doherty, Tanya A1 Swart, Elizabeth C YR 2020 UL http://gh.bmj.com/content/5/12/e003574.abstract AB In South Africa (SA), exclusive breast feeding remains rare, with breast-milk substitutes (BMS) commonly being used in ways that are detrimental to infant and young child nutrition, health and survival. The use of internet, digital and mobile platforms has increased, including in low-income and middle-income countries, like SA and these platforms are avenues for BMS marketing. SA has national legislation (Regulation R991) to enforce the International Code of Marketing of BMS. This paper aims to provide pertinent examples of how BMS manufacturers in SA use social media to market their products thus violating national regulations. A digital (and social media) ethnography approach was used to study BMS organisations’ activity on Facebook and Instagram. Purposively selected examples of social media posts observed (from 2015 to 2019) were included, and content analysed in terms of national legislation. Several examples of BMS social media marketing are presented and interpreted according to provisions of national regulations that they violate. BMS manufacturers have found ways on social media to market their products in a media space that is complex to regulate, and where it is difficult to enforce national regulations. It is necessary to engage with stakeholders, notably social media companies, to alert them to relevant regulations applicable to their platforms. Monitoring the marketing of products for infants and young children by national governments needs to include online and digital platforms especially social media.