Concept:
Gymnema sylvestre is traditionally used in diabetes management.
Step 1: It contains gymnemic acids.
Step 2: These constituents help reduce sweet taste sensation.
Step 3: It is also associated with regeneration/support of pancreatic \(\beta\)-cells.
Step 4: Thus, it helps reduce blood glucose levels.
\[
\boxed{\text{Regenerate pancreatic \(\beta\)-cells and suppress sweet taste}}
\]