There are a few different routes to get into this field. The first route would be to pursue your HSC with Physics, Chemistry, and Biology as your subjects. Follow this with a B. Sc. in Biological Science and then Post graduation in Food Science/ Applied Nutrition/ Food & Nutrition/ related course. The second route would be for you to complete your 10+2 in Home Science and Chemistry. Top this with a B. Sc. in Home Science and follow it with a M. Sc. in Home Science with specialization in Food Science/ Applied Nutrition/ Food & Nutrition. There are also a number of Diploma courses in Dietetics/ Food & Nutrition/ other related areas.