Most acetaminophen tablets contain no caffeine unless the label lists it as an added ingredient.

One serving of AdvoCare Spark contains 120 mg of caffeine, a mid-range hit that lands close to a small cup of coffee.

Most 12–16 oz canned yerba mate drinks contain 120–170 mg of caffeine, with brand, can size, and blend driving the spread.

A level teaspoon of matcha often lands around 30–70 mg of caffeine, with the swing driven by powder weight, grade, and batch testing.

A level teaspoon of ground coffee often holds 30–60 mg of caffeine, with bean type, grind, and scoop size pushing it lower or higher.

A 16-ounce Thai iced tea often lands around 50–90 mg of caffeine, based on brew strength and the tea used.

A level teaspoon of matcha (about 2 g) usually lands around 60–70 mg of caffeine, with brand and grade pushing it lower or higher.

A Starbucks Trenta Cold Brew has about 360 mg of caffeine, near the daily cap many adults try not to pass.

A Tall Starbucks brewed coffee lists 209.8 mg of caffeine, which rounds to 210 mg for a 12 oz cup.

A single espresso shot often lands near 60–75 mg of caffeine, with bean type, dose, and shot size shifting the final number.