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Sprite has 0 mg of caffeine in standard U.S. versions, so you get lemon-lime fizz without a stimulant.

A Starbucks cold brew in the 16-oz size commonly lands near 205 mg of caffeine, with the total rising in larger cups and dropping in smaller ones.

Most adults can have up to 400 mg of caffeine per day, with lower limits for pregnancy, teens, and anyone who gets side effects at smaller doses.

Most nursing parents do fine at 200–300 mg of caffeine per day, with a tighter cap early on and for preterm babies.

A typical 8-oz cup brewed from one bag has 20–35 mg of caffeine, with the final number driven by leaf grade, water heat, and steep time.

An 8-oz cup of brewed white tea usually lands around 15–30 mg of caffeine, with the final number shaped by the leaf and your brew.

The average U.S. adult takes in about 135 mg of caffeine a day, from coffee most often, with big swings by age, drink choice, and serving size.

A typical 16-oz Thai iced tea lands around 20–60 mg of caffeine, with lighter café versions near the low end and strong concentrates climbing higher.

A typical Thai iced tea lands around 30–80 mg of caffeine per 12–16 oz, with strong concentrate-style cups often running higher.

One 1-ounce espresso shot usually lands near 60–65 mg of caffeine, with real-life pulls swinging lower or higher based on dose, beans, and shot yield.