This is a tough question because it has so many variables.
It depends on what type of cleanse you are doing, what your goals are, what your current level of "toxicity" is, how you currently eat, your current state of health, etc. As you can see, this is a tough one and is personalized for each person. I'd suggest looking into a holistic practitioner who is well versed in cleansing to see if something like that is appropriate for you.
In the meantime, you can check out our 5 day cleanse reset here: