That's not quite accurate. While water and fat are significant components of the human body, they aren't the only ones, and their proportions vary considerably.

Here's a breakdown of the major components of the human body:

* Water: The most abundant component, making up about 55-78% of body weight, depending on age, sex, and body composition. Water is crucial for many bodily functions, including regulating temperature, transporting nutrients, and removing waste.

* Fat: While fat gets a bad reputation, it's essential for energy storage, insulation, and hormone production. It accounts for about 15-30% of body weight, but the specific percentage varies greatly between individuals.

* Protein: The building blocks of the body, proteins make up about 15-20% of body weight. They are involved in virtually every bodily function, from muscle growth and repair to immune system responses.

* Carbohydrates: Although often associated with energy, carbohydrates only constitute a small percentage of body weight (about 1%). They are primarily stored in the liver and muscles as glycogen.

* Minerals: These essential elements make up about 5% of body weight. They are involved in numerous bodily functions, including bone health, nerve transmission, and muscle contraction.

* Other: This category includes various other components, including vitamins, nucleic acids, and trace elements, which contribute to the remaining percentage of body weight.

So, while water and fat are important components, the human body is a complex mixture of many different molecules, each with specific functions and contributions to our overall well-being.