The cleanse that was referred to is something that you can decide on personally. The oil can be taken in water as a meal replacement if you choose (1 tsp at a time) which would mean that one bottle would not last as a one month supply which it usually does if taken at the 1tsp a day maintenance dosage, this is one reason for the multiple bottle offer. Additionally, taking larger amounts of the oil for the first couple months can help your body to detox - ridding it of the toxins that build up in the body. In this case customers are encouraged to take 3 tsp of the oil a day - you can do that all at once or you can spread it out through the day. This is not a product that you can overdose on so you are welcome to take as much of it as makes you feel better.