How Much Caffeine Will Kill You? For most adults, an oral dose of about 5 to 10 grams of caffeine, roughly 100 to 200 milligrams per kilogram of body weight, can be lethal. Severe toxicity can start at around 1 to 2 grams, and risk rises with rapid intake of concentrated forms like pure powder. By contrast, healthy adults can generally consume up to about 400 milligrams per day without safety concerns, according to European regulators.

How close is your daily coffee to a dangerous dose? See what a lethal amount of caffeine really is, why powders and energy shots are riskier, and how to stay safe. Did any numbers surprise you? #CaffeineOverdose #CaffeineToxicity #EnergyDrinks #LethalDose #PowderedCaffeine