"The Wheat Belly diet is based on reducing the amount of processed foods that you eat, avoiding all processed flour, and increasing the amount of exercise you get." This statement is an example of a(n) __________.

The statement encapsulates the main premise of the Wheat Belly diet, focusing on key components such as reducing processed foods, avoiding processed flour, and increasing exercise. A central idea serves as the foundation of a text, summarizing its primary focus or argument. In this context, the Wheat Belly diet's fundamental guidelines are clearly laid out, making it a central idea that informs readers about what the diet entails.

Supporting details rather than the central idea would provide examples or evidence that back up the main point. A thesis statement typically appears at the end of an introduction and states the writer’s argument or main claim, while a counterargument presents opposing views, which is not applicable here. The chosen answer reflects a clear articulation of the primary concept behind the diet, making it relevant as the central idea.