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It seems there's no limit to what this inexpensive supplement can do for you, performance-wise and health-wise.

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The Ultimate Body Transformation Agent

This naturally-occurring substance maximizes carb intake in muscle, burns fat, and prevents the storage of extra carbs. Here's the science.

The 6 Unwritten Rules of the Gym

Are you the person in the gym that other people secretly hate? You are if you break these rules.

Tip: Testosterone Levels Determine What You Buy

Science determines the role testosterone plays in your purchases, your social status, and how much action you get.

Build Muscle Anywhere, Anytime

Yes, you can build size with bodyweight exercises. But these aren't your typical beginner moves. Check 'em out!

Beyond Fish Oil

Many fish oil supplements are underdosed and made only for women. Not this one.

Power Foods

Thirteen foods you should be eating. Check ‘em out.

Back to the Roots of Training

Keep it simple, but keep it hardcore. No gimmicks and no fluff. Clear out the clutter with these 12 principles, then get your butt into the squat rack.

3 Bad Ideas You Need to Stop Repeating

You've heard these things before. You've probably repeated them. Well, stop it. They're oversimplified and sometimes flat-out false.

Tip: The Evil Butt Workout of Doom

Do this character-building, lower-body smashing workout once per week. Warning: In eight weeks you'll need to buy new jeans.

Tip: The Most Painful (and Effective) Way to Squat

Yeah, it hurts, but if your legs are lagging it'll build them up fast.

The 7 People Who Never Get Results

Are you one of these types of people? Hope not. Because they never make any progress. Check out the list.

Pull-Ups Vs. Chin-Ups

We look to science to find out which exercise reins supreme for lats, traps, and biceps. Bonus: Two cool tricks to get better results with both.

5/3/1: How to Build Pure Strength

Jim Wendler's 5/3/1/ program promises slow and steady gains that will eventually turn you into the strongest guy in the gym. And it delivers, every time.

How to Look Jacked in 3 Weeks

If you only had a few weeks to fine tune your physique and look your best for an event, what would you do? Here's what our pros said.

Tip: The Simple Math of Rapid Fat Loss

Want to drop the chub quickly but still retain lean body mass? Grab your calculator and follow this formula.

Tip: Do Chin-Ups With the 25 Reps Method

Go heavy on the chin-up and you'll build massive amounts of real-world strength and muscle. Check out this workout plan.

You Can't Prove That!

Trainers and diet experts are often years ahead of scientific research. Here, six experts share their unproven (but probably correct) theories.

Sprinting Towards Single Digit Body Fat

The secret to dropping fat and building a great posterior chain may be just a few hundred meters away. Check out this plan.

5 Things You Can Train Everyday

Think you've gotta wait a few days before training some muscles again? Nope. Make gains faster. Here's what thrives with frequency.

Tip: Squat, Carry Heavy Stuff, and Shut Up

Three things every lifter and athlete should be doing. Get the details here.

The Best Damn Workout Plan For Natural Lifters

Bodybuilding is full of programs used by "enhanced" lifters, but most people don't take drugs and can't get good results. This effective program is for them.

The New 5x5

The 5x5 system has been around forever for a reason: it works. But it has its shortcoming. Let's make it even better.

The X-Physique Program

Broad shoulders. Narrow waist. Powerful legs. Back all that up with real strength and you'll turn heads. Here's your plan.

Testosterone Advantage Training

Small arms? You need testosterone and GH. No, not the illegal kind. The kind you get when you use this science-backed training split.