The World's Trusted Source for High-Performance Fitness and Health

SINCE 1998

In 1993, the Food and Nutrition Board of the National Academy of Sciences introduced the Dietary Reference Intakes (DRIs), a set of four reference values for nutritional intakes:

Latest and Trending

Bulk Up, Cut Up: Biceps!

Christian, I really want to improve my biceps development. Do you think that supersets are a good training method to use for that purpose?

High Performance Core Training

The days of banging out a thousand crunches are over. Get your core strong to get your entire body strong. Here’s how.

  • Abs
  • Cardio Progressions

    The last time it happened I was getting changed in the locker room at my gym. Two pudgy-bellied gym members (PBGMs) were discussing the relative virtues and drawbacks of doing cardio as part of their training program.

    Creatine Update, 2006

    Creatine is the most studied sports supplement in history. Here’s what we’ve learned about loading, delivery systems, and timing issues.

    Hammer Down: Endurance

    The best way to train for MMA endurance doesn’t involve a lot of running. Check out these more effective training strategies.

    28 Things I'm Learning

    In four months I'll be a whopping 28 years old. I know a thing or two about training and all that goes into it, but I also respect the fact that there's a hell of a lot I don't know enough about, and other topics I need to know something about that I'm not even aware of!

    HSS-100: Back Specialization

    When it’s time to specialize and bring up your back, this should be your go-to training program. Check it out.

    New Arm Size, Right Now!

    How does an advanced lifter build bigger arms? Is it even possible? It is. If you're an experienced lifter who hasn't seen arm growth in ages, here's what to do.

    Hypertrophy Booster Shots

    This article isn't going to overwhelm you with neuroscience or obscure language. Nope, it's going to be bare-bones simple. As I've learned over the years, elementary advice is usually what helps people most, and it tends to work best.

    Shoulder Savers - Part 2

    Eight more ways to protect your shoulders so you can keep lifting hard and heavy. Check ‘em out.

    Shoulder Savers - Part 1

    How to build strong and healthy shoulders.

    The Dave Tate Project - Part 2

    Powerlifter Dave Tate goes from junk food lover to nutrition nut... and gets ripped in the process. Here's how he did it.

    Inferno: My Week on DNP

    I remember when I was still at University, earning my degree in English, and had to read <i>Dante's Inferno</i>. For anyone who isn't familiar with this story, it's about the author's three-day descent into Hell, guided by his greatest inspiration, the Latin poet Virgil.

    Hammer Down: Strength

    Your guide to building MMA strength. Check it out.

    Man Fuel 1

    Despite what you might think from the title of this article "Man Fuel" is NOT the name of a new supplement from TwinLab. Instead, it's the name of a new Question and Answer column from Testosterone contributor Mike Roussell.

    Most Powerful Program Ever?

    A proven training system specifically designed for bodybuilding. Check it out if you want to grow!

    Bulk Up, Cut Up! 3

    Thib, you seem to be able to come up with a lot of new and effective exercises. Got any more that I could use to spice up my training?

    Minimal Time, Maximum Workout

    Got 20 minutes? Then you have time for a great workout. Follow these guidelines.

    Back to McGill

    If you're a lifter with back problems you'll want to read this. If you're a lifter without back problems you'll still want to read this.

    Nervous Muscle

    It's very apparent to me that there are many coaches and fitness writers who don't understand the nervous system. I'm not the least bit surprised because your nervous system is arguably the most complex and ambiguous system in your body.

    The Athlete Diet

    From North American Diet to Athlete Diet: Tips for Making the Transition

    Slammer Muscle

    These twelve tips, compiled by ex-con Jay Mullins, will help Cy (or you, if you find yourself in a similar situation) make the best of his time in the Big House.

    A Return to the Golden Age - Part 2

    When many of us think of perfect physiques, we think of those belonging to Golden Age bodybuilders. These champions of the past were muscular, strong, healthy, and athletic. It's cliche but it's true: women wanted them; men wanted to be them.

    Core Training for Smart Folks

    Improve performance, reduce risk of injury, and look better with your shirt off. Here's how.

  • Abs