Reviews
C4 Smart Energy Review: 200 mg Caffeine
Our C4 Smart Energy review checks the 200 mg caffeine dose, 12-pack price, nootropic label gaps, research, and blood-pressure finding.
Caffeine
Every FitnessVolt article tagged Caffeine, newest first.
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Latest on Caffeine
Reviews
8 Best Pre-Workout Shots of 2026: Caffeine-First Picks
Compare eight pre-workout shots and RTDs by stated caffeine, price, format, and honest tradeoffs. Learn how to avoid accidental stimulant stacking.
Reviews
8 Best Low-Caffeine Pre-Workouts of 2026, Ranked by Full-Serving Dose
Compare eight low-caffeine pre-workouts by full-serving caffeine, disclosed performance doses, formula clarity, package confidence, and value.
Bodybuilding
Arnold Schwarzenegger Breaks Down How Much Caffeine Is Too Much Before Training
Is that extra cup of coffee working against your training goals? In the June 30, 2026, Arnold’s Pump Club newsletter, Arnold Schwarzenegger revealed how much caffeine…
Nutrition
The 5 Supplements Worth Taking (And Another Five That Aren’t)
Whether you want to get fit, improve your sports performance, build muscle, get strong, or lose fat, consistent training and a healthy diet are the cornerstones…
Nutrition
I’m a Fitness Coach: Why I Threw Out My Pre-Workout (And What I Use Instead)
Pre-workout supplements have come a long way since I was a semi-pro triathlete in the early 1990s. Back then, my “secret sauce” was flat Coca-Cola, which…
News
‘Workout Queen’ Dies at 28 from Heart Attack — Mother Blames Energy Drinks
Katie Donnell, a 28-year-old Florida teacher known for her love of fitness and clean eating, tragically died from a heart attack in 2021 after collapsing during…
Bodybuilding
Energy Drinks or Coffee for a Performance Boost? Arnold Schwarzenegger Weighs in on the Superior Option
If you’re looking to get an edge with caffeine during your workout, Arnold Schwarzenegger has a study that could pique your interest. In his latest Arnold’s…
Supplements
Coffee vs. Pre-Workout: Discover the Ultimate Fuel for Peak Exercise Performance
I love the tingling sensation (an effect of an ingredient called beta-alanine) I get after drinking my favorite pre-workout supplement. However, some people cannot stand the…
Nutrition
Are Pre-Workout Supplements Necessary? Here’s What the Experts Say
Pre-workout supplements aren’t strictly necessary for everyone, but they can offer benefits like increased energy, focus, and workout performance. Whether they are necessary for you depends…
Nutrition
How Much Caffeine Is Too Much for Athletes?
How much caffeine is too much for athletes? The ideal intake depends on body size, tolerance, and activity type. The International Society of Sports Nutrition (ISSN)…
Body Mechanics
How to Avoid Fatigue: Tips for Post-Exercise Recovery!
Are you tired of being tired after a workout and dread that feeling of exhaustion that hits you like a ton of weights after hitting the…
Bodybuilding
Arnold Schwarzenegger: “Caffeine is One of the Best Ways to Pump Up Your Workout Performance”
At 75 years old, Arnold Schwarzenegger has become an encyclopedia of bodybuilding and fitness knowledge. In a recent Daily Pump Newsletter, Schwarzenegger explained the pre-workout benefits of…
Fitness Calculator
Caffeine Calculator: Are You Consuming Too Much?
Count the caffeine in what you drank today and see how it compares with the daily limit for an adult, someone pregnant or breastfeeding, a teenager…
Supplements
Does Pre-Workout Make You Poop? — Explained
Pre-workouts are one of the most popular supplements. They can turn a polite and feeble Bruce Banner into the Incredible Hulk, ready to smash weights in…
Bodybuilding
Is a Pre-Workout Supplement Bad For Your Heart Health?
If you are a serious lifter, you probably have pre-training rituals without which you do not enter the gym. Pre-workout supplements are a mainstay in most…
Nutrition
Creatine vs. Pre-Workout: What Are They and Which is Right for Me?
With so much information available surrounding nutritional supplements today, it can be hard to decide which supplements are right for you. Perhaps two of the most…
Reviews
5 Best Organic Pre-Workout Supplements of 2026
Compare organic and clean-label pre-workouts by caffeine source, ingredient transparency, training support, taste, stimulant comfort, value, and direct Amazon availability.
Nutrition
How Long Does Pre-Workout Last?
Pre-workout supplements are a relatively new invention. Before things like Old School Vintage Blast and Jacked Factory PumpSurge existed, if you needed an energy boost before…