Monster Zero Ultra Energy Drink Review
- Zero sugar, low calorie
- Meaningful taurine dose despite blend
- Moderate, approachable caffeine level
- Key amounts not disclosed on label
- No pump-supporting ingredients
- Lower caffeine than most competitors
Effects Timeline
AI-estimated changes in effects over the first 3 hours after taking the recommended serving.
A modest 140mg caffeine dose backed by a real, industry-standard taurine amount and a light dose of L-carnitine.
Genuinely low-calorie and sugar-free, but not built to deliver any pump, strength, or endurance benefit.
Honest take: A genuinely mild, budget option, fine if you want low-calorie caffeine and nothing else.
Ingredient breakdown
Every dose · every gap| Ingredient | Clinically effective dose | Dose in Monster Zero Ultra Energy Drink | Status |
|---|---|---|---|
| Taurine | 2–3 g | 1 g | 50%Under-dosed |
| Carnitine (Tartrate) | 2 g | 0.07 g | 4%Under-dosed |
| Caffeine (actual caffeine) | 200–400 mg | 140 mg | 70%Moderate dose |
| Sodium (elemental, hydration) | 0.3–1 g | 0.37 g | Hydration support |
- Taurine1 g50%Under-dosed
- Carnitine (Tartrate)0.07 g4%Under-dosed
- Caffeine (actual caffeine)140 mg70%Moderate dose
- Sodium (elemental, hydration)0.37 gHydration support
Evidence references
Effects of Caffeine Intake on Endurance Running Performance and Time to Exhaustion: A Systematic Review and Meta-Analysis
Does One Shot Work? The Acute Impact of a Single Taurine Dose on Exercise Performance: A Meta-Analytic Review
Effects of l-carnitine supplementation on weight loss and body composition: A systematic review and meta-analysis of 37 randomized controlled clinical trials with dose-response analysis
