Definition: In English, 'gastro-nutrition' refers to the science of the human digestive system as it relates to diet, nutrition, food intake, and its effects on health. The term 'gastro-nutrition' comes from Greek and literally means "nutritional for stomach". The focus is on understanding what nutrients are in your diet and how they affect your health. This involves measuring and analyzing the amount of a particular nutrient in a specific food or supplement. Gastron refers to a person who has an interest or passion for nutrition science. It can refer to someone who studies food, diets, health conditions, or nutrition, as well as those with an interest in nutrition education or promotion.