If you want a rather guilt free summer treat, Hibiscus cafe holds some of the best icecream in the city. It's dairy free, comes in flavours from coffee to raspberry and is heavenly.
A small little cafe in Kensington they offer a wide variety of 'dietary friendly' dishes. They hold a little bit of unusual hours but definitely a must stop for healthy eaters who want to indulge in what's good :) A definite fav. in the city.