'Nutritionists' are those who gives guidance on the intake of food and their impacts on health after the problem diagnosis by the specialists like diet plans to reduce weight, special diet plans for diabetic, cancer patients etc. They have expertise in a range of services which includes public health nutrition, community health and tertiary education related to nutrition. They not just design and coordinate but also do they implement and evaluate population’s health intervention in order to improve population as a whole by means of better food and nutrition.