Skip to content
DE
Other

Caffeine

Caffeine is a natural stimulant of the methylxanthine class found in coffee beans, tea leaves, cocoa and guarana.

Also listed as Coffee extract, Tea extract, 1 3 7-Trimethylxanthine, Caffeine Anhydrous

CognitionEnergyStress & Mood

How much is considered safe?

EFSA identifies up to 200 mg at once and 400 mg across a day from all sources as amounts without safety concerns for healthy adults. During pregnancy and breastfeeding, its daily figure is 200 mg. These values are not targets or guarantees of comfortable sleep. 1

What suggests the amount is too high?

Nervousness, insomnia, nausea, anxiety and heart rhythm disturbances are among the adverse effects described by BfR. Sensitivity and habitual consumption influence the response. 2

What about medicines and younger people?

FDA advises discussing caffeine with a clinician when medicines or health conditions may increase sensitivity. It also cites medical advice against energy drinks for children and teens. 3

Adverse findings

Ratings where the reported effect was unwanted. Each lists the studies behind it.

Energy CrashesEnergyModerateFNo linked study

For information, not individual medical advice. Ingredient studies do not establish the effectiveness of these products.

Sources