What type of food includes meat, fish, poultry, eggs, milk, and beans?

The correct answer is protein, as the foods listed—meat, fish, poultry, eggs, milk, and beans—are all rich sources of protein. Protein is a macronutrient essential for the growth, repair, and maintenance of body tissues. It plays a vital role in building muscles, producing enzymes and hormones, and supporting overall health and wellness.

In contrast, fats consist of triglycerides and are important for energy storage, hormone production, and cell membrane integrity but do not encompass the foods listed in the question. Carbohydrates serve as a primary energy source for the body and include sugars, starches, and fibers found in foods like grains, fruits, and vegetables rather than protein-rich items. Vitamins are organic compounds required in small amounts for various physiological functions and are not found exclusively in the foods mentioned, as they are prevalent across a wide range of food groups, including fruits, vegetables, and grains.