By its packaging, it looks like it may be protein, although it could contain multiple energy-enhancing supplements as well. Old people often become more childlike in their behavior and crave attention. Although they may be fulfilled by conversations or by impacting their children’s lives, she may make friends in the old age home and probably can visit her family as much as she wants, unlike forced rehabilitation.
I think older people should be active, no matter where they are. I've seen some people just sitting and staring, with nothing to do. Being inactive affects both their physical and mental well-being.