What is the term for all the food and drink a person regularly consumes?

The term that refers to all the food and drink a person regularly consumes is "diet." In the context of nutrition, diet encompasses the variety and quantity of food and beverages a person incorporates into their daily life. This can include specific dietary patterns, types of food consumed, and overall caloric intake.

"Nutrition" pertains more to the study of nutrients and how they affect health and well-being, rather than the actual foods consumed. "Intake" generally refers to the specific amount of food or nutrients one consumes at any given time but does not encompass the broader habitual consumption. "Consumption" is a broader term that can refer to anything someone uses, not limited to food and drink alone, and often includes other forms of resource use. Thus, "diet" is the most accurate term to describe a person's regular food and drink habits.