Caffeine Intakes from Beverages in the U.S.

Abstract

The caffeine intake from beverages was estimated for the US population using the Kantar Worldpanel Beverage Consumption Survey. This survey included a nationally representative sample of 37,815 consumers of caffeinated beverages (≥ 1 yr of age). Respondents completed 7‐day intake diaries including the type, amount, and preparation of each beverage. Parents or guardians completed surveys for children 1–12 yrs of age. Results show that 84% of the US population consumes at least 1 caffeinated beverage per day. The mean daily caffeine intake from all beverages was 165±1 mg for all ages combined. Caffeine intake was highest in the 50–64 yr age group at 223±2 mg and 2.2±0.03 mg/kg body weight. Mean daily intakes were lowest in consumers <6 yrs of age at 36±3 mg and the 6–12 yr age group on a mg/kg body weight basis at 0.9±0.03. The 90th percentile intake was 552 mg for all ages combined, ranging from 182 mg at 6–12 yrs to 651 mg in the 50–64 yr age group. Coffee was the primary contributor to caffeine intakes in all age groups combined but a more significant contributor in adults (>;18 yrs). Carbonated soft drinks and tea beverages were also significant caffeine sources, particularly in the younger age groups. The percentage of energy drink users was low (≤10%) and these beverages were minor contributors to overall caffeine intakes in all age groups. Supported by the International Life Sciences Institute North America; Caffeine Working Group