The phrase "diet trial" refers to a period of time during which a person tries out a specific type of diet to see if it helps them achieve their health or weight loss goals. Full definition
My dog recently finished a food allergy elimination diet trial with this food. (royalcanin.com)
What is more important is that the diet has been balanced by experts in canine nutrition, and that the diet performs well during diet trials and in real life. (nextgendog.com)
It is important that dogs on diet trials not be allowed to roam so that they do not have the opportunity to get into food or garbage or get treats from the neighbors. (rachelebaker.com)