I applaud the Hong Kong government's efforts to reduce sugar and salt consumption in schools. The promotion of food for a school's financial gain or as a student reward system for behaviour does more harm than good.
Foods with sugar and additives, such as flavours and colours, and those with substandard ingredients affect a child's ability to learn.
Firstly, the psychological associations of using sugary foods in a reward system have no positive benefits for students or the teacher. Small amounts of sugar can cause stereotypical highs and lows in energy and adverse behavioural reactions, increasing disruptions and making classrooms more difficult to manage. Teachers spend time dealing with behaviour instead of teaching, losing out on valuable time in the classroom.
Using food-based reward systems desensitises young bodies to normal hunger patterns. This desensitisation is further compounded by providing sugary foods and reinforced by repeating the reward system in class.
Moreover, the mixed messages children receive are confusing. Kids must eat healthy foods to promote learning and keep their bodies in good condition, yet schools sell and allow treats over the World Health Organisation recommendations for daily sugar intake.
Lastly, parents should be given discretion when, where and what to give their children for treats at home. Understandably, children want to celebrate birthdays with friends; birthday parties outside the classroom provide the perfect avenue.