Complex sentence: John Garrow (19 April 1929--22 June 2016) was the editor of the "European Journal of Clinical Nutrition" from 1988 to 1999.
Split into simpler sentences: John Garrow (19 April 1929--22 June 2016) was a nutritionist. He was the editor of the "European Journal of Clinical Nutrition" from 1988 to 1999.