RT Journal Article SR Electronic T1 Studies on the origin of faecal amino acids in cystic fibrosis JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 600 OP 609 DO 10.1136/gut.11.7.600 VO 11 IS 7 A1 Seakins, J. W. T. A1 Ersser, R. S. A1 Gibbons, I. S. E. YR 1970 UL http://gut.bmj.com/content/11/7/600.abstract AB Evidence is presented which demonstrates that excess faecal amino acids in cystic fibrosis are derived from unabsorbed dietary protein. Changes in the absorption of fat and nitrogen have little effect on the amino-acid patterns.