Tea · Drink database

Caffeine in Guayakí Guayakí Organic Energizer

150 mg
per 16 oz can High

≈ 9.4 mg per fl oz

Halfway to the ceiling in one go. Respect.

Every serving size

ServingCaffeine% of 400 mg dayFinish by (10:30 PM bed)
16 oz can (16 oz) 150 mg 38% 2:34 PM

Cutoff column: average metabolism (5 h half-life), ~50 mg bedtime threshold — run it with your bedtime →

How it compares

Guayakí Guayakí Organic Energizer 150 mg
Green tea (8 oz) 28 mg
Black tea (8 oz) 47 mg
Brewed coffee (8 oz) 96 mg
Monster (16 oz) 160 mg
Bang (16 oz) 300 mg

Spends a serious share of the 400 mg daily ceiling. Treat it as a morning-to-early-afternoon drink unless the calculator says otherwise. At 150 mg per 16 oz can, this drink is 38% of the FDA's 400 mg daily ceiling for healthy adults.

Source: Manufacturer label · confidence: medium

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Related reading: coffee vs tea vs energy drinks · when to stop before bed

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