daily recommended dose of caffeine
The Starbucks coffee with 'three quarters of the safe daily dose' in one cup. 1  400mg of caffeine is the recommended daily allowance for average person. 2  16oz Starbucks 'Grande' contains 330mg, according to study. 3  But scientists stress that tolerance levels of the stimulant can vary widely.
The EFSA Scientific Opinion on Caffeine suggested that caffeine intakes of 3 mg/kg body weight per day provides a basis for calculating caffeine intakes of no concern for children and adolescents. In UK children (5-10 years) the daily intake of caffeine was 12 mg/day at the age of 7 and 24 mg at the age of 10 years. Fifty-four percent of the caffeine absorbed came from soft drinks, 8% from tea and 38% from chocolate foods or beverages. None came from coffee 11.