Some artificial sweeteners, like those found in diet sodas, may increase glucose but evidence is mixed. It’s best to select drinks with no- to low-sugar drinks like water (add lemon or herbs for flavor), or sparkling water without any sweeteners.
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Alsunni AA. Effects of Artificial Sweetener Consumption on Glucose Homeostasis and Its Association with Type 2 Diabetes and Obesity. Int J Gen Med. 2020 Oct 6;13:775-785. doi: 10.2147/IJGM.S274760. PMID: 33116769; PMCID: PMC7547772.