If you want a healthier flour spelt flour is brilliant. It can replace regular flour. I use wholemeal - it's lower in carbs than reg flour and high in protein! We follow a low carb diet also, mainly in the first half of the day, then work on eating healthy carbs from fruits and veggies from the afternoon onwards.
I also came across coconut flour when I had a read - apparently Almond flour can release harmful toxins into the body once heated? But apparently coconut flour doesn't. I read that on a page, so if this info is wrong please correct me! But worth a mention.
Once i have our second child (gotta start TTC first!) and back into BF I am also going to be on my trusty low carb diet. Its the only way I have been able to manage my weight since having DS.