Human nutrition is a broad term that refers to the study of how the body obtains and utilizes nutrients from food. There are several synonyms for this term, including "dietetics", "nutritional science", and "nutritional medicine". Dietetics is the study of how food and nutrition affect human health, while nutritional science is the study of how nutrients interact with the body to promote health. Nutritional medicine focuses on the use of food and supplements to prevent and treat diseases. Understanding the importance of human nutrition is crucial for maintaining good health and preventing chronic diseases such as obesity, diabetes, and heart disease.