GrandmaCrunch

£13.49 (2 boxes), grandmacrunch.co.uk

Boost your breakfasts with this high-protein, low-carb, plant-based cereal. It tastes great and there’s a nice crunch, but the numbers are the really impressive factors: per serving there’s 15g protein, just 111kcals and a mere 0.4g sugar. Made from soy protein isolate and sweetened with erythritol, GrandmaCrunch comes in three flavours: Coconut, Chocolate, and Cinnamon.