Yes and no. Yes they are highly healing. No they wont detox heavy metals or cure adrenal fatigue. I personally juice and drink around one liter of raw vegetables and few fruits everyday. I feel the healing power vibrating in these colourful fluids. I get energy and my ability to speak and write in an sophisticated way gets a boost so my brain likes the veggie juice! :P
Have you tried to drink leek,garlic or onion juice? Even a little mixed with lots of anything will give fun for 15 minutes to half an hour. I have to sit down and be patient.