Sincere questions

What do you think of using the green powders if you can't grow your own wheatgrass?

Have any of you ever been on a wheatgrass fast? What does it consist of? Drinking wheat grass only I imagine would be the answer. How much would you take in one day? Could you take enough to keep your body from a starvation diet mode? Unless you are on a water only fast don't you have to have a certain amount of nutrition to keep you from starving as ketosis will not be at work? Wouldn't too much grass juice keep you in a severe detox mode? Would that be safe?
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