Pharmacist Warns Against Pre-Workout Powders

A pharmacist has advised gym enthusiasts to steer clear of well-known pre-workout powders due to potentially serious heart risks.

Many of these supplements promise to enhance energy and performance, but they often contain dangerously high levels of caffeine.

Lauren O’Reilly, a drug expert based in Ireland, explained that excessive caffeine intake can lead to high blood pressure and irregular heart rhythms over time.

In a recent video shared on TikTok, which has garnered over 82,000 views, she expressed her strong reservations, stating she “wouldn’t touch” such powders.

“They can have over 300mg [of caffeine] per scoop, which is akin to consuming three cups of coffee at once,” she cautioned.

This sudden surge can result in feelings of anxiety, jitters, and even heart palpitations.

She elaborated that these palpitations indicate the intense pressure all that caffeine puts on the heart and blood vessels, ultimately increasing blood pressure.

“In the long run, this can cause substantial harm,” she warned.

Experts have consistently highlighted the dangers posed by high doses of caffeine, especially for individuals with undiagnosed heart rhythm issues.

Caffeine triggers the release of hormones that elevate both heart rate and blood pressure, and in some at-risk individuals, it can lead to atrial fibrillation—a condition marked by rapid, irregular heartbeats—which increases the chances of a heart attack or heart failure.

This warning follows a previous alert from the Government’s Food Standards Agency concerning the safety of caffeinated workout supplements. They raised concerns after a 29-year-old collapsed and died following a miscalculated dose of caffeine powder.

Personal trainer Thomas Mansfield died in January 2021 shortly after consuming a mixture that contained seven times the recommended caffeine dose.

Minutes after drinking this concoction, he began experiencing severe symptoms like frothing at the mouth and chest clutching.

An inquest revealed he had taken nearly 16 times the maximum dose indicated on the label.

The FSA pointed out that the amount he consumed was equivalent to up to 200 cups of coffee.

Alarmingly, a survey indicated that less than half of consumers actually check dosage instructions on supplements.

In her latest advisement, O’Reilly emphasized that the fine print often states “for occasional use only.”

She added, “People use these frequently, and they’re really quite dangerous.” Her verdict? “These are a definite no for me.”

Instead of resorting to such extremes, she suggested that eating a banana about 30 minutes before exercising provides a much safer energy boost.

The Food Standards Agency recommends limiting daily caffeine intake to no more than 400mg—around four cups of coffee.

This year, several lawsuits were filed in the US against Panera Bread concerning its highly caffeinated ‘Charged Lemonade.’

A 28-year-old woman from Rhode Island has accused the chain of causing her long-term heart issues after she consumed two-and-a-half Charged Lemonades at a local Panera.

Following this, she reported experiencing episodes of palpitations and dizziness, and scans later revealed she was suffering from atrial fibrillation.

This incident followed the death of a 21-year-old college student from Pennsylvania, who reportedly suffered a fatal cardiac event after drinking the Charged Lemonade, which contains 390mg of caffeine.

The tragic case involved a young woman who had long QT syndrome, a serious heart rhythm condition she was diagnosed with at age five. She had been managing it with medication and had limited her caffeine intake.

Dr. Stuart Fischer, an internal medicine doctor in New York, explained that caffeine can disrupt the natural pauses between heartbeats in individuals with long QT syndrome.

“Patients with this condition require extra time to reset after their heart contracts,” he noted. Caffeine can expedite the heartbeat, creating excessive stress on an already strained heart.

Dr. Fischer warned that just 100mg of caffeine—equivalent to a large coffee—could be enough to trigger a life-threatening scenario.