Nutrition plays a major role in promotion of health and wellbeing of individual. A good and balance diet habit improves the quality of life while poor diet may lead to morbidity and diseases. Nutritionists and dietetics are concerned with this aspect. While dietetics is related to food management, nutrition is related to promotion of health.
In Hospitals, Hotels hospitality industry, they suggest corrective food habits considering various aspects of an individual such as age, work routine and sickness etc. and thereby improving their quality of life. They also educate their clients about preparation of food according to the principles of nutrition. They know about food production and processing, psychological factors influencing food choice, digestion and its effects on nutritional aspects.