However, some staff members in r/starbucks have simply attributed the discontinuation of the menu to bad timing.

One argument for its discontinuation is that several other food programs exist, including daily meals at senior centers.

But it is unclear how common discontinuation symptoms actually are.

"It shows the importance of comparing antidepressants with placebo when studying discontinuation," said Prof Glyn Lewis, from University College London.

A spokesperson for the restaurant chain told NBC News Tuesday that the nationwide discontinuation of the Charged Lemonade comes after a “recent menu transformation.”