A widely-used pratice (Bazzocchi 2017) based on the ancient and totally outdated theory of auto-intoxication (Ernst 1997) to which numerous health benefits are attributed without ever having been proven (Ernst 2010, Acosta 2009, Richards 2006, Ernst 1997). Its use is not risk-free, and can even have serious health risks such as vomiting, diarrhoea, dehydration, electrolyte imbalance, intestinal perforation and spread of bacteria or toxins (Mishori 2011, Seow 2009,Tan 1999), even if they are not frequent (Richards 2006). Since the last update we have not found published data on its excretion in breast milk. Given the lack of proven health benefits and the potential risks it carries, it is a completely non-essential practise, even more so during breastfeeding.