A nutritional therapist has in-depth knowledge about the calories values of each food items. They guide clients in maintaining proper diet and nutrition. Through proper diet and healthy way of living patients can boost up the natural healing system of the body. Nutritional therapist will collect patient details and medical history. They will also enquire about life style, diet, family history as well as professional backgrounds. Before starting the therapy clients will be tested for allergy and other necessary diagnosis. Nutritional therapist will educate the patients about the relationship between their diet and future health. Suggested individual diet programme will also be given with this one to one counselling. Diet will be rearranged so as to increase or decrease the essential nutrients and vitamins uptake. Entire change in life style will also be recommended in case of necessities. A nutritional therapist deals with patients having chronic illness, migraine, allergies, skin diseases and also digestion problems. Children having behavioural or weight problems are also clients of a nutritional therapist.