Beauty & Fitness

You have not mentioned the spicialisation subject of MBA.
Dietitians are professionals who use the Science of managing nutrition to promote a healthy life. In order to become dietitian you have to take up either B.Sc Nutrition or B.E in Food Technology. You have to write the entrance test for getting admission for these courses
Since you have already completed graduation and Masters, I would suggest you to opt for some short term diploma course programs.
Here is a list of programs for you:
Certificate Courses in Dietetics & Health Education
Certificate Courses in Nutrition and Dietetics
Diploma in Dietetics and Nutrition
Diploma in Dietetics and Applied Nutrition
Diploma in Dietetics, Health and Nutrition
Some of its specialized fields are: -
Sensory Science
Community Dietitians
Consultant Dietitians
Clinical Dietitians
Public Health Nutrition
Food Toxicology
Management Dietitians
Nutritional Physiology
Molecular Nutrition
Nutrition in Health and Disease
The National Institute of Nutrition, Hyderabad is a premier institute under Indian Council of Medical Research, an autonomous body under the Ministry of Health and Family welfare, Government of India, that offers regular nutrition training courses every year.
Some Job Types:-
Researcher
Consultants
Therapeutic Dietitian
Food Show Host
Sports Nutritionist
Nutrition Trainer
Administrative Nutritionists
Public Health / Community Dietitian

As a health / sanitary inspector you will be more into conducting surveys, reports, field work & research on various aspects of health environment, conditions & the norms to be followed. The core job remains to be professionals who shall supervise an assignment, conduct enough analysis when the need arises to make the people / company abide by the health standards. Great opportunities exist in Government sector.
The Key skills required:
Ability to work in a team & take bold decisions against all odds.
Good communication skills. (to convince people on accepting the truth)
Good physical fitness & stamina to bear the burden of extra work / long work.
Job Prospects:
Government jobs: Many vacancies exist in the central & state government Health departments.
Work as consultant/supervisor/chief manager in private hospitals, MNC's & other health related departments.
Opportunities to work abroad are aplenty. You could get supervisor, managerial level jobs that give high returns.