I have read that everything was edible on the tree. So last year during one of the up-pots, I sampled everything.
I also consumed the fruit in Hawaii to collect my seeds. People walking by seemed to find it weird haha. I have sucked the seeds to remove the pulp. I just haven't consumed the seeds or extracted oil from them as of yet.
Anyways...the roots tasted like wet dirt (Not bad. Just not good) and the leaves taste pretty close to spinach. I have in fact made a salad or two when I de-foliate or heavily prune for the putting them in my grow tent.