Research Article ABC of nutrition. Enteral and parenteral nutrition. Br Med J (Clin Res Ed) 1985; 291 doi: https://doi.org/10.1136/bmj.291.6506.1404 (Published 16 November 1985) Cite this as: Br Med J (Clin Res Ed) 1985;291:1404 Article Related content Metrics Responses Peer review Related articles No related articles found. See more Should adults take vitamin D supplements to prevent disease? BMJ November 23, 2016, 355 i6201; DOI: https://doi.org/10.1136/bmj.i6201 High iron levels are associated with risk of gestational diabetes, study finds BMJ November 14, 2016, 355 i6075; DOI: https://doi.org/10.1136/bmj.i6075 NICE calls for wider use of blood tests to diagnose coeliac disease BMJ October 20, 2016, 355 i5660; DOI: https://doi.org/10.1136/bmj.i5660 One in five with bowel cancer diagnosed as emergency had previous “red flag” symptoms BMJ September 28, 2016, 354 i5277; DOI: https://doi.org/10.1136/bmj.i5277 Vitamin D advice seems at odds with new methods BMJ August 23, 2016, 354 i4581; DOI: https://doi.org/10.1136/bmj.i4581