Dr Joanna McMillan says

Top marks for… Your dinner, being the only substantial meal of the day, providing your sole source of high-quality protein from the chicken and including the only vegies.

If you keep eating like this you’ll… Fail to meet your requirements for many nutrients, including protein, calcium – particularly important at your age for bone health – iron, zinc, B vitamins, omega-3s, and fibre for gut health. In essence, this day does not have enough food for optimal nutrition.

Why don’t you try… Getting more protein and nutrients into the day by adding eggs to breakfast, slicing your banana into Greek yoghurt, snacking on a can of tuna with wholegrain crackers or whipping up a smoothie with fruit, leafy greens and either milk or a scoop of protein powder.

Fenella Kernebone is the head of programming for SXSW Sydney, which runs from October 14-20.