i was rarely under 80 g carb even in phase 1 of SB. i only know that because i did use an online tracker for my food. definitely not required on SB to track carbs. as judy said you go by the food lists and meal plan guide for food choices and portion sizes. in phase 2 i was closer to 150 g carb.

if you are eating super low atkins level carb but not eating higher fat as well it's likely that you aren't eating enough calories. you can't really mix SB and atkins which it sounds like you are doing. you'll do best picking one plan or the other to ensure proper nutrition or you will stall quite quickly.