How long on a low carb diet before your body hits Ketosis?
Most of the time, within a few days. I think the more important questions are: how low of a low carb diet do you need to be, and stay, in ketosis; and whether this is healthy for your body. This is a ridiculously personal issue, varying vastly from person to person. My body does not enter into ketosis until I have 17g or less of carbs a day. And I find that this low amount of carbs is healthy for my body, but it might not be for everyone's.
HW: 274 | SW: 232 | CW: 137 | Goal: 145 (ticker includes a 42 pound loss pre-op) | Height: 5'4"
M1: -24 (205) | M2: -14 (191) | M3: -11 (180) | M4: -7 (173) | M5: -7 (166) | M6: -8 (158) | M7: -11 (147) | M8: -2 (145) | M9: -3 (142) | M10: -2 (140) | M11: -4 (136) | M12: -2 (134) | M13: -0 (134) | M14: -3 (131) | M15: +4 (135) | M16: +2 (137)