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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Don’t give us the cold shoulder! Try out some of these deltoid exercises during your next workout to build bigger, stronger shoulders!

We’ve got the best bicep workout, courtesy of a certified personal trainer, that’ll give you an excuse to flash those pythons anywhere and everywhere!

Are potential creatine side effects like weight gain, cramps, and kidney damage supported by science? Here’s what you need to know before you start taking creatine.

Creatine monohydrate is considered the gold standard, but are other forms of creatine better for gains? We’ll break it down in this creatine HCl vs monohydrate standoff.

What do you really know about the crunches exercise? GGR’s own Amanda Capritto provides tips for proper form and more! Check it out!

Protein powder is one of the most popular supplements for bodybuilders, but if you want to lose weight, is protein powder good for weight loss? We investigate.

In our guide to pea protein vs whey protein, learn the critical differences to decide which one is right for you.

What are the different types of creatine, and which type is the most effective? A dietitian explains what you need to know.

Next to protein powders, creatine is one of the most popular sports nutrition supplements. But it’s also no stranger to controversy. Those who love it swear by it, and those who don’t use it have a lot of questions—like, “does creatine make you gain weight” or “does creatine cause hair loss?” As fans of creatine…

There are many rumored side effects of creatine, but it can be hard to tell which ones are true. Here, we answer one such question: does creatine cause acne?

Struggling to build muscle without equipment? Try this bodyweight leg workout!