The consistent (or controlled) carbohydrate diet (CCHO diet) helps people with diabetes keep their carb consumption at a steady level, through every meal and snack. What Is It? You might hear your doctor or nutritionist call the CCHO by other names, such as the "constant carbohydrate" or "controlled. Looking for the definition of CCHO? Find out what is the full meaning of CCHO on Abbreviations. What does CCHO mean? We know 17 definitions for CCHO abbreviation or acronym in 3 categories.