Well you can cancel a few out...
cook - no, I mean you're just cooking you may not know a lot about nutrition
epidemiologist - they determine diseases and such, so no.
Dietitian - Yes, expert in nutrition
Health Educator - I mean maybe, but they may not know anything about nutrition
DO NOT eat anything except for vegetables because of being a vegetarian
Answer:
The infrastructure of development are communication, education, health, power, market, commerce, irrigation and leisure facilities.