You've heard the advice a thousand times: grab an energy drink before you hit the gym. But most people never stop to ask — does it actually help? And more importantly, are you doing more harm than good with what you're choosing?

Here's what the research says about using energy drinks as pre-workout fuel, and how to pick one that actually supports your performance instead of sabotaging it.

What Caffeine Actually Does Before Exercise

Caffeine is one of the most well-studied performance enhancers in sports science. The evidence is solid: moderate caffeine intake (roughly 3–6mg per kilogram of body weight) can improve endurance, increase power output, reduce perceived exertion, and sharpen focus during training.

For a 150-pound person, that's roughly 100–200mg of caffeine — basically one IS-BE can (100mg) to two cans. Most people find the sweet spot is right around 100–150mg taken 30–45 minutes before training.

The key word is "moderate." More is not better. At higher doses, caffeine starts causing jitters, elevated heart rate, GI distress, and anxiety — all of which tank your workout.

Why Most Energy Drinks Are Terrible Pre-Workout Choices

A standard Monster or Bang contains 200–300mg of caffeine, artificial sweeteners, synthetic colors, and a laundry list of ingredients your body has to process while simultaneously trying to perform.

Here's the problem: when your body is dealing with 300mg of synthetic caffeine slamming into your system all at once, you get a spike — followed by a crash that usually hits right around the 45-minute mark of your session. That's the worst possible time to lose energy.

Artificial sweeteners like sucralose and acesulfame potassium can also cause digestive issues during intense exercise. Nobody wants to deal with that mid-set.

What to Look for in a Pre-Workout Energy Drink

The ideal pre-workout drink has a few non-negotiable qualities:

Moderate caffeine (100–150mg): Enough to enhance performance without overcooking your nervous system. You want focus and drive, not shaky hands and a racing heart.

Clean caffeine source: Caffeine from organic green tea is absorbed more gradually than synthetic caffeine, giving you sustained energy rather than a spike. The naturally occurring L-theanine in green tea also promotes calm focus — exactly what you want when you're pushing through a tough set.

Electrolytes: You're about to sweat. Starting with electrolytes on board — potassium, magnesium, zinc — means you're ahead of the hydration curve instead of chasing it.

Real ingredients: Your body performs best when it's processing things it recognizes. Real fruit, organic cane sugar for quick energy, and vitamins that actually support cellular function.

Timing Matters

Drink your energy drink 20–40 minutes before your session starts. Caffeine blood levels peak around 45–60 minutes after consumption, so this window puts you right in the zone when you're warming up and getting into your working sets.

Don't drink it during your workout unless it's a long endurance session. Consuming caffeine mid-workout can cause GI issues and doesn't give you enough time to absorb and benefit from it.

IS-BE as Pre-Workout

IS-BE hits every mark: 100mg of organic green tea caffeine for smooth, sustained energy. Electrolytes to support hydration before you start sweating. 200% DV Vitamin C for antioxidant support. Just 60–70 calories from real ingredients — enough fuel without feeling heavy.

No jitters. No crash at the 45-minute mark. No mystery ingredients your body has to fight through while you're trying to train.

Crack one open 30 minutes before you move. Your body will thank you.