Building a medical practice for a DIETitian is harder than ever. Many general practitioners and other specialties have entered to DIET THERAPY and competition in this field is increasing. Patients are becoming increasingly involved in making choices through them. Health care Markets will become segmented and there will be other health professionals ready and willing to answer the needs of those new markets with skills and information DIETitians have not yet learned or rejected as unnecessary.With what seems to be a competitive field, marketing is vital for every medical practice, new or established, small or large, to succeed. DIETitians today must take an entrepreneurial approach to marketing, actively seeking out new patients and referral sources. Presently, the marketing window of opportunity for nutrition is wide open and Career avenues for DIETitians who distinguish themselves will abound. Competing successfully in this market may require experience and education outside the required nutrition curriculum and traditional career settings. In this competitive market, it is important for a DIETitian to use good health service marketing plan before beginning a medical practice to better understand the practice’s patients, competition, operational performance and its impact on patients, and the healthcare environment in which it operates. Attracting and keeping clients is necessary to survive in business. As with all types of service marketing, whether the conventional customer-seller relationship or the more complex patient-physician association, there are fundamental principles and aspects that are imperative in creating customer satisfaction and building loyalty.in fact, Health Service Marketing a medical practice is a way to attract and retain patients. A review of the strategic health care service market planning being implemented by other professional groups, practical successful guidelines, understanding concepts such as service marketing mix, levels of consumer satisfaction, the branding of services, entrepreneurship approach of Nutrition, skills and case studies and all their relation with DIETetic profession, provides perspective for those beginning DIETitians or in the midst of their practice growth.