I would say read a book on it. especially books that are written and reviewed by professionals.there are tons of books on nutrition.
Probably Nutrition, or nutritional studies.
Nutrition.
Prevention,nutrition,fats,
the study of eating disorders
Nutrition.
It's Nutrition
people
Nutrition
THE basic tools in study of nutrition are: *Nutrition guidelines *Food exchange list *Dietary standard & Nutrient Density *Nutrition Facts *Food composition table
Mostly it is a nutritionist of the hospital or clinic that helps others study a good nutrition.
A student. When you graduate, you'll be called a nutritionist.
Nutrition Science