@CTBarrister You’re right. I noticed the erythritol and was concerned, but since they claim it specifically improves absorption I just wasn’t feeling like investigating the (perhaps) competing effects of improved absorption vs. the problems with sugar alcohols. In other words, if it’s helpful in small quantities with a lot of fluid then maybe it’s worth the trade-off. OTOH there’s a real chance that it’s just a careless way to keep the calorie count down, and perhaps doesn’t help with absorption at all.
The lactose free ice cream makes no claims about the digestive virtues of erythritol, so there’s not even an assertion floating around to justify it. It also probably uses considerably more erythritol (heck, it’s “ice cream”), but that’s just a guess.