Efficacy of Rambutan Fruit

Rambutan fruit is very useful for health for our bodies. as for the like;
-Can treat fever, canker sores, diarrhea, diabetes mellitus, ward off cancer, reduce cataracts, prevent aging, and increase male fertility.
Consumption tips;
This rambutan can be consumed at any time. because with a red color broke then we will feel like to continue to enjoy it.

Rambutan fruit also has other content such as, Saponin, tannins, and polyphenols.

If there is a natural way to ward off disease, why chemistry?