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A 12-ounce can of Coca-Cola Classic contains about 32 to 34 mg of caffeine. An 8-ounce glass holds roughly 21 mg.

A single 1-teaspoon serving of Café Bustelo Espresso Instant Coffee contains roughly 60 to 90 mg of caffeine, per the brand’s consumer care team.

An 8 oz serving of Coca-Cola Classic contains approximately 22-23 mg of caffeine, about one-fourth the caffeine in the same amount of brewed coffee.

Medical guidelines recommend limiting caffeine to under 200 mg daily during pregnancy — roughly one 12-ounce cup of coffee — to reduce potential.

A medium (24 fl oz) Dunkin Iced Coffee contains approximately 297 mg of caffeine, with reported values ranging from 284 mg to 297 mg depending.

80 mg of caffeine is a moderate dose, roughly equivalent to an 8.4-ounce can of Red Bull or about 20% of the FDA’s daily limit for most healthy.

Bloom Greens powder contains only a negligible trace of caffeine from matcha green tea extract, not enough to be considered a significant source.

An 8-ounce cup of brewed coffee typically contains between 95 and 200 milligrams of caffeine.

A 1-ounce serving of 70-85% dark chocolate contains about 22.7 mg of caffeine, roughly a quarter of the amount in a standard 8-ounce cup of coffee.

70 mg of caffeine is roughly the amount in a single shot of espresso or a strong cup of black tea.