Originally Posted by John P. Walsh
I screwed up. I am only consuming 20 grams of carbs. Forget that 40/40/20 number.
50g of carbohydrate per day is required to prevent ketosis so if you're eating ~20gCHO/d you should be in ketosis by now although it should be noted that that will not enhance fat oxidation significantly compared with any other calorie restricted diet or speed up the rate at which you lose body fat.