'Energy drinks killed my superfit daughter' claims heartbroken mum, as scientists sound alarm over cardiac risk

Katie Donnell, from Florida in the US, took a caffeine supplement, followed by up to three energy drinks a day as well as the odd coffee, in order to fuel her workouts.

Mar 24, 2025 - 14:36
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'Energy drinks killed my superfit daughter' claims heartbroken mum, as scientists sound alarm over cardiac risk
Katie Donnell, from Florida in the US, took a caffeine supplement, followed by up to three energy drinks a day as well as the odd coffee, in order to fuel her workouts.