I read this on Wikipedia:
The process for the manufacture of a useful sweetener from luohan guo was patented in 1995 by Procter & Gamble. The patent states that, while luohan guo is very sweet, it has too many interfering aromas, which render it useless for general application. Thus the company developed a process for the removal of the interfering aromas.
In this process, the fresh fruit is harvested before it is fully mature, and is then matured in storage so that it may be processed precisely when it is mature. The shell and seeds are then removed, and the pulped fruit is made into a fruit concentrate or puree. This is then used in the further production of food. Solvents are used, amongst other things, to remove the interfering aromas.
You can't out-exercise poor eating habits.