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Data and comparisons

Converting label values and interpreting EFSA’s caffeine assessment.

Caffeine in one serving

250 ml × 32 mg/100 ml = 80 mg

Calculation example: if a drink’s label states 32 mg caffeine per 100 ml, 250 ml contains 80 mg. Always check the particular product’s label.

Product data

EFSA’s assessment framework

200 mg · 400 mg

For healthy adults who are neither pregnant nor breastfeeding, EFSA found that up to 200 mg caffeine in a single dose and up to 400 mg over a day, from all sources combined, do not raise safety concerns. These are safety reference values, not consumption recommendations or advice to drink five cans a day.

Original EFSA source

100 ml and the whole package

250 ml ÷ 100 ml = 2.5

The amount per package equals the value per 100 ml multiplied by the package volume in millilitres divided by 100. Check the product variant, package size and source date in the database.

Product data

Further illustrations

The history of energy drinks (original graphic in Hungarian)
The history of energy drinks
International Energy Drink Day initiative (original graphic in Hungarian)
International Energy Drink Day initiative