Science Project Online (1999~2000) The Grand Introduction Do you know what you eat can affect your health and your body? Do you know how the food affects you? Do you know what are nutrients? The following project explains how the nutrients inside the food work in your body so as to produce energy. Now you are going to learn about the system in your body of input (food and nutrients), process (respiration and digestion) and output (application of energy). In short, nutrition is the process by which organisms obtain nutrients for maintaining life. Nutrients are the food materials that an organism can use for growth and body repair, for release of energy and for maintaining different life processes. In a biological sense, we are what we eat! Now, please choose your destination: Acknowledgement Credits Nutritions: Introduction Water Carbohydrates Proteins Lipids Vitamins Minerals Recommended Daily Intake of Nutrients Nutritive Value of Various Kinds of Food Respiration: Introduction Human Respiration Internal Respiration of Human Bodies