I'll look at adding a low-carb option. I see that this website http://www.diabetes.co.uk/diet/low-carb-diabetes-diet.html has guidelines for low-carb.
Yes the site is visually a bit plain at the moment - we are planning to improve that.
We do also plan on adding nutritional values for recipes...
I co-own the recipe website http://www.getmecooking.com and we have created a (growing) database of over 1,000 ingredients to tell us if they are suitable or not for the top 8 food intollerances, vegetarians, diabetics, etc.
You can search for diabetic friendly recipes here...