COST OF CHEATING The literal "cost of cheating when your cheat takes you out of ketosis. think of it this way and you may not think the cheat was "worth it" (literally not worth it! ) It takes 3-4 days to get back into ketosis. $4 per packet x 3 per day = $12 per day x 4 days = $48 in packets you have to buy just to get back to where you were before the cheat. Add to that the cost of your meat and veggies for four days, say $6 per day x 4 days = $24. Your popcorn, piece of cake, glass of wine, garlic bread, etc. set you back at least $72!