To change something we need to have a will to do so. If one is not willing to survive on his own he is left in the mercy of others.
I will not accept the possibility of stopping my bodies own perfect processes in order to bet all on a medical plant. With that set in mind I am completely against setting hopes into nothing else but medical plants or medical substances only. A medical plant or medical substance ("cure") will only affect a portion of the problem and aid in its resolve.
We already know from various medical analysis that the human body is actively fighting a very large number of problems each and every day. Even so it being perfectly organized it is still subdued by the persons own will. The body, like every controlled system, must obey its operator. If the operator, person/you/your soul/how ever you want it, wants to ignore bodies analysis and request for certain materials and terminate certain processes due to states of stress or on purpose, due to death wish?, the body will have problems finding alternative pathways and means to overcome the exact same problem it could have solved up until that moment more easily.
If we tell our body not to do it in one way, it will find another way, it will never give up. The analytic process of the brain is never ending. As a perfect system it is it will always search for means to please both its operator will and its natural hardcoded function to regenerate it self.
There is only so much energy in our bodies, like every physical system it requires an energy and material resource in order to maintain.
The more you obstruct it the more time, resources and energy it requires.
Just like with a pipe system, I could run all kinds of chemicals down my drain and risk degradation or even failure of the whole system, not to mention environment pollution, just to to clean it up.
But why do that when the system already has self cleaning properties?