I have been following a ketogenic for 8 months (on and off, i'd go for a month and then fall off for a week or two).
In the beginning, i was losing at least 2lbs per week and my keto sticks were turning a dark purple.
Now, i'm losing less than a pound a week, and my keto sticks are negative to trace for ketones.
My diet is the same, if not more restrictive of carbs and i've increased the amount of cardio.
Why can't i get back into ketosis? Does your body become immune to ketosis after a while?