I got my lowest BG readings when I kept my protein around 60-70g a day but in general I tried to keep it 80g a day or under.

For me it worked to eat a lot of LC veggies and keep my net carbs 30 or less (usually around 20), but you can eat a lot of veggies and still get that.

I should repeat that experiment.

I didn't fast though. I hate fasting. It is a very uncomfortable thing for me.