From the actual study[0]

Human cerebral microvascular endothelial cells (hCMECs) were cultured and treated with 6 mM erythritol, equivalent to a typical amount of erythritol (30 g) in an artificially sweetened beverage, for 3 h.

Am I reading this right? They basically soaked brain cells in diet soda for three hours?

[0] https://journals.physiology.org/doi/full/10.1152/japplphysiol.00276.2025