In 1992, the United States department of Agriculture published it's food pyramid. At the bottom lay carbohydrates including breads, rice and cereals. Intake was suggested at 6-11 servings per day. After the food pyramid was released, several books suggested that political influence may have played a key role in it's development.
Later, the pyramid was amended in 2005 and again in 2011 and is now referred to as MyPlate providing for some adjustments when complaints were made about portion sizes and clarity.
Another pyramid I wanted to reference was created in 1954 by Abraham Maslow in the book Motivation and Personality. Within the book, Maslow outlines a hierarchy of human needs ranging from the relatively primal to transcendental, if you will.
As you can see, at the bottom stands what he refers to as our physiological needs, those needs which without, we would cease to function. Several of these needs include water, sleep, food and homeostasis. Now, combining these two pyramids, one could essentially form their own food pyramid which is essentially what I intend to do.