Nutritional science (also nutritional science, sometimes short nutrition, dated tropology) is the science that studies the physiological processes of food (mainly human consumption) and derives nutrients and other elements contained in food in relation to conservation, growth, reproduction, health and disease of the organism. The demand for nutrition and diet research is increasing as more and more people need lifestyle experts and experts who can ensure that we eat food that not only tastes good and looks good, but is also healthy for us. Nutrition and dietetics, a subdiscipline of medicine, is a science that focuses on everything related to food and its effects on our health and general well-being. Dietitians and nutritionists aim to promote people's health and help them make better food choices.