When a person says" this food is nutritious, she/he is implying that the food contains
more nutrients other than calories or it is a food that has high nutrient density.
Why is it important that food must possess the necessary nutrient? Nutrient is a chemical component needed by the body to provide energy, to build and repair tissues, and to regulate life processes. Some are manufactured in the body, a process called biosynthesis, while some are made in the laboratory. These are man-made nutrients useful for research or therapeutic purposes.