Clearspring Japanese Black Sesame Rice Cakes are wheat free and good on their own or with miso soup.

29 kcals, 0.2g fat per cake.
£1.85/150g, Holland & Barrett

The Skinny Cow range, including the Toffee & Honeycomb ice-cream sticks, offers loads of sweet treats if you're watching either your fat or sugar intake.

95 kcals and 1.6g fat per 110ml stick.
From £2.29, widely available