I tend to look at it like a food intolerance/sensitivity issue. For example, my body doesn't do well with wine AT ALL. If I drink it, I get really irritable, anxious, and depressed in the following days or so. It really brings me down. If I drink potatoe vodka (and in large quantities) mixed with filtered water, I'm ok. I don't experience these same side effects which is why I can drink in larger quantities.

I've been tested to have candida overgrowth which affects my mental state (brain fog, memory loss, forgetfulness, etc). Yeast is in wine. I'm also sensitive to gluten which is why I opt for potato vodka. There's a lot more to this piece.

As a side note, I haven't had a drink in over 5 years.. and don't really miss it.

So maybe it's not the "alcohol" she's consuming that's as much of a problem than which kind.