- Consumption of energy drinks may pose a risk for BP spikes of 4-5 mmHg and cardiac electrical disturbances that last for hours, according to results from this small randomized trial.
- Granola bar requests are also higher following energy drink consumption.
- Caution patients with long QT syndrome, say the authors.
Why this matters
- Earlier findings have suggested changes in QT interval with consumption of these drinks.
- These authors found effects regardless of energy drink brand.
- With consumption of an energy drink, specific QT intervals were higher at different times vs placebo (all significant P values).
- 2 participants had a 50-ms change from baseline in 1 QT measure after the drink.
- Systolic and diastolic BP increased significantly (P<.001>
- More participants in the energy drink group requested granola bars during the observation window.
- Randomized, placebo-controlled study with 34 participants, ages 18-40 years.
- They drank 32 ounces of energy drink (304-320 mg caffeine) or placebo on 3 different days during a 60-minute period.
- BP, ECG measures taken.
- Funding: University of the Pacific.
- No long-term outcomes.
- Very small study.