Sussex Performance Centre

Creatine, Beta-Alanine, and Caffeine: Which Supplements Are Actually Worth Your Money?

The supplement industry is flooded with products claiming to boost performance, build muscle, and enhance recovery. But which supplements are actually backed by science? Today, we’re breaking down three of the most researched performance-enhancing supplements—creatine, beta-alanine, and caffeine—to see if they’re worth your investment.

1. Creatine: The King of Performance Supplements

How It Works

Creatine is a naturally occurring compound that helps replenish ATP (adenosine triphosphate), the primary energy source for short, high-intensity efforts like sprinting and weightlifting.

Benefits (Supported by Research)

  • Increases strength and power (Buford et al., 2007).
  • Enhances muscle mass and recovery (Kreider et al., 2017).
  • Improves brain function and cognition (Avgerinos et al., 2018).

Dosage

  • Loading phase (optional): 20g per day (divided into 4 doses) for 5-7 days.
  • Maintenance dose: 3-5g per day.
  • Best taken: Any time of the day—consistency is key.

2. Beta-Alanine: The Endurance Booster

How It Works

Beta-alanine increases carnosine levels in the muscles, which helps buffer acid build-up during high-intensity exercise. This delays fatigue and improves endurance.

Benefits (Supported by Research)

  • Delays muscle fatigue and enhances endurance (Hobson et al., 2012).
  • Particularly effective for high-intensity efforts lasting 1-4 minutes (Trexler et al., 2015).

Dosage

  • 3-6g per day (spread throughout the day to reduce tingling sensation).
  • Best taken: Consistently over time—effects are seen after 2-4 weeks.

3. Caffeine: The Ultimate Pre-Workout Booster

How It Works

Caffeine is a stimulant that enhances alertness, focus, and physical performance by blocking adenosine, a neurotransmitter responsible for relaxation and sleepiness.

Benefits (Supported by Research)

  • Boosts strength and endurance (Grgic et al., 2019).
  • Increases focus and reaction time (Spriet, 2014).
  • Can enhance fat oxidation during exercise (Ganio et al., 2009).

Dosage

  • 3-6mg per kg of body weight (e.g., 200-400mg for most individuals).
  • Best taken: 30-60 minutes before exercise.

Practical Takeaways

  • Creatine: Best for increasing strength and muscle growth. Safe and effective.
  • Beta-Alanine: Great for endurance and buffering fatigue. Takes a few weeks to kick in.
  • Caffeine: Effective pre-workout supplement, but watch for tolerance buildup.

By focusing on supplements that are scientifically proven, you’ll get the most bang for your buck without falling for marketing hype.

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