Soniavita D

Very little is known about this product. It is never expanded on in the game or the anime. This article will help readers break the concept down

What it is
Soniavita D could be an energy drink based on the drink Sunny D, that Sonia could've advertised when she came out of retirement. Sonia says to drink it when you're tired, as seen on the Air Display in Wilshire Hills

Possible ideas for Sonia to advertise it
Sonia says on her and Geo's date that she thinks about the kids who've lost their parents, either by illness or other causes and deep in Sonia's heart could have a yearning to help the tired people because they're trying to get over the grief that everyone feels when a loved one dies.