alkaline-ash diet

n.
  1. A diet consisting mainly of fruits, vegetables, and milk with little meat, fish, eggs, cheese, and cereals, that when catabolized leaves an alkaline residue to be excreted in the urine.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.