Thank you, I understand now. :)
Check the amount of sugar in the smoothies in any supermarket. 10 or 11% sugar is not unusual and none of it is added sugar. So when you make your own smoothies using the same or similar ingredients there is no reason to expect sugar levels to be much lower. Some of the drinks in this book use Stevia as a sweetener presumably to avoid using sugar rich fruits. I don't think of you as an idiot.
Sorry if you missed out.
£3.08 for me. :(