1. ESPEN guidelines on nutrition in cancer patients
2. ESPEN guideline on clinical nutrition and hydration in geriatrics
3. Regulation (EU).No 609/2013 of the European Parliament and of the Council of 12 June 2013 on food intended for infants and young children food for special medical purposes and total diet replacement for weight control and repealing Council Directive 92/52/EEC Commission Directives 96/8/EC 1999/21/EC 2006/125/EC and 2006/141/EC Directive 2009/39/EC of the European Parliament and of the Council and Commission Regulations (EC) No 41/2009 and (EC) No 953/2009 Text with EEA relevance [Internet]. Bruselles: European Parliament Council of the European Union [Cited 25th of August 2020]. Available from:https://eur‐lex.europa.eu/legal‐content/EN/TXT/HTML/?uri=CELEX:32013R0609&qid=1598358201084&from=EN.
4. Protein and energy supplementation in elderly people at risk from malnutrition;Milne AC;Cochrane Database Syst Rev,2009