A doctor has issued a warning to people who regularly take pre-workout supplements, especially those high in caffeine.
Pre-workout drinks are commonly used to boost energy, focus, and endurance before going to the gym, but experts say they can come with side effects.
According to health experts, caffeine in these supplements is absorbed quickly into the bloodstream, and effects can begin within 15 to 30 minutes after taking it.
Some people may experience headaches, nausea, increased heart rate, anxiety, or sleep problems, particularly if the supplement contains very high caffeine levels.
Studies have also shown that many pre-workout products contain much more caffeine than a normal cup of coffee, which can lead to sleep loss and fatigue over time.
Doctors warn that frequent use, especially later in the day, can disrupt sleep quality and recovery, which is actually important for muscle growth and overall health.
Experts recommend checking caffeine amounts, avoiding taking pre-workout late in the evening, and speaking to a doctor if you experience side effects.
While pre-workout supplements can help performance, health professionals say they should be used carefully and in moderation.
