On top of fridges, stacked in grocery aisles, and sprinkled all over your social feed—protein powder is everywhere. You might even have a half-used tub quietly judging you from the back of your pantry. But what is protein powder, really? Protein powder is a concentrated source of protein made from animal or plant ingredients—like whey, casein, soy, pea, egg, or blends. The best protein powders deliver a potent dose of high-quality protein, » Read more about: Guide to Protein Powder: Scoop the 411 From an RD »
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Treadmills are popular exercise machines for just about anyone of all fitness levels. They allow work-from-homers to increase step counts without leaving their desks; runners to avoid torrential downpours; and everyone in between the chance to improve their health. If you’ve been foot-striking the tread belt as a way to lose weight or improve your…

The back squat has been hailed as the king of all lifts, and it’s worthy of that title for many reasons. But this is a king who rules with an iron fist, taxing the muscles and central nervous system of its subjects. That’s why most people will save this move for one, maybe two training…

Should you do cardio before or after weights? Discover the optimal time to get your steps or strides in from our team of fitness experts.

Mastering proper squat form is key to building strength and preventing injury. Follow our expert’s tips.

You know you should do it, but do you know why? Check out some amazing (and surprising) benefits of cardio.

Have you heard of 305 fitness? Here, we break down what it is and its benefits.

Need a joint-friendly, heart-pumping workout? Check out our favorite low-impact cardio exercises.

Looking for a heart-pumping, sweat-inducing battle rope workout? We’ve got you covered.

Wondering, “How long should I walk on a treadmill?” Spoiler alert: It depends on your goals, but we have expert advice to guide you.

What is cardiovascular fitness, and how do you test it? Our experts provide insight and tips on how you can improve yours.

Wondering what to look for in used cardio equipment? Follow our in-depth guide.

Looking for a treadmill walking workout to follow? We’ve got three options here written by a certified personal trainer.