Hello student ,

If we talk about clinical nutritionist and dietitian then clinical nutritionist uses a holistic approach to healing , taking into his consideration of the person's body in whole mind , body and soul and has practiced it on different patient .

Where as  clinical dietitians use knowledge in the science of nutrition to advise on appropriate diet, food and menu planning to treat nutrition related disease and has practiced it clinically on the patients .

And if we talk about normal nutrionist and dietitian then normal nutrionist are those who would have only know to guide people about healthy eating habits to improve health and prevent disease , but didn't had practiced on the basis of clinically same as normal dietitian guide us about the science of nutrition and advises others about healthy eating but has not practiced it clinically .

Hope you find this helpful .