Food
Approach
Common prompts cover the rise of fast food and obesity, food security, and whether governments should regulate diet (e.g. sugar taxes). A strong approach links the personal (individual choice) to the structural (food marketing, urban food deserts) rather than treating diet purely as willpower.
Examiners score range, not vocabulary lists — the more ways you can reword an idea on this topic, the higher your Lexical Resource and Grammatical Range marks climb.