There are more and more grain free granolas in stores in UK now, thanks to the proliferation of FreeFrom sections. Many people are grain-free now and Paleo is still around. If you don't want the pfaff of making your own, The Paleo Foods Co cocoa and hazelnut grain-free granola 340g is 5.99 and 13.1g carbs per 42g serving and available in some supermarkets. I know that's high but still lower than many. Julians Bakery Paleo coconut flakes are same price from Amazon, gluten and grain free, 7g carb per 30g serving.