alkali-ash diet, a diet designed to increase the blood and urinary pH in which the ingestion of specific fruits (avocados, tomatoes, and lemons) and vegetables (e.g., asparagus, cabbage, peas, and spinach) is encouraged. Restricted foods include meat, poultry, and cheese. Research suggests that the most rational approach should be based on the cumulative effects of foods because the maintenance of pH is a complex process in which the body adjusts to maintain equilibrium. However, a diet rich in fruit and vegetables promotes overall health.
