"Creatine will break through your plateau—five grams a day is all it takes!" Arnold promises

When the Austrian Oak speaks, the fitness world listens. Arnold Schwarzenegger hasn’t been racking up titles on the Mr. Olympia stage for a long time, but thanks to his popular newsletter and podcast, he remains one of the most influential voices in health and training. Throughout his career, he has seen hundreds of “miracle” supplements come and go, only to turn out to be nothing more than an expensive scam. But there is one exception that Arnold swears by, and that is creatine.

In a recent reflection, the seven-time champion took a close look at this most-studied supplement. He didn’t just focus on the dry science, though; he focused on something much more practical: exactly how complete gym newbies benefit from creatine compared to seasoned athletes who’ve already put in their time lifting weights. According to him, the differences are surprisingly significant.

Why Even the Old School Swears by Creatine

Before Arnold dove into the comparison, he pointed out a basic fact. Creatine isn’t a banned substance or a magic powder that will lift the weight for you. It’s a naturally occurring compound that acts as the body’s primary source of energy for short-term, high-intensity exertion. When you’re doing heavy squats or bench presses, your muscles consume ATP (adenosine triphosphate). And it’s creatine that helps replenish these energy stores in a flash.

For Arnold and the entire old school of bodybuilding, the most valuable aspect of creatine is its unquestionable safety and proven effectiveness. Decades of research confirm that pure creatine monohydrate not only builds strength and muscle but, according to more recent studies, also benefits the brain and cognitive function. But how do its effects vary depending on your training level?

Beginners: Rocket Fuel for Newbie Gains

If you’re new to the gym, your body responds to the training stimulus incredibly quickly. This phenomenon is often referred to as “newbie gains.” Your muscles and central nervous system are just learning to handle the load, and your strength skyrockets almost from one workout to the next. According to Arnold, adding creatine to this already explosive process is like pouring high-octane fuel on a fire.

For beginners, creatine primarily means the ability to handle a higher training volume and recover faster between sets. Newcomers often struggle with extreme muscle soreness and rapid energy depletion during workouts. Creatine allows them to maintain intensity a little longer. They’ll be able to squeeze out those few crucial extra reps, which, when added up over the first few months, leads to much more substantial muscle growth. Simply put, it’s the ideal starter supplement that helps beginners develop a positive relationship with their workouts thanks to faster and more visible results.

Advanced Lifters: A Tool to Break Through Stagnation

For experienced lifters, however, the situation is completely different. The golden era of rapid beginner gains is long gone. If you’ve been lifting weights for five or ten years, gaining every additional kilogram of muscle or adding five kilos to the barbell requires months of hard work. The body has adapted to the stress and resists further changes. And this is precisely where, according to Schwarzenegger, creatine reveals its true, strategic power.

For the advanced lifter, creatine no longer means a miraculous overnight transformation. It becomes the most important tool for breaking through training plateaus. When you’ve been stuck at the same weight for months and can’t seem to make any progress, creatine provides your muscle cells with that critical extra one percent of energy. It allows you to squeeze out an eighth rep where you’d normally stop at seven. And it’s precisely this single extra rep with heavy weight that serves as the only stimulus capable of forcing the muscle to grow further in advanced trainees.

Simplicity is power

Whether you’re holding a barbell for the first time or have calluses on your hands from thousands of deadlifts, Arnold’s final advice on supplementation remains the same and utterly pragmatic. Forget about expensive, modern, and specialized forms of creatine with flashy packaging.

Plain old creatine monohydrate is still king. Five grams a day is all it takes—every day, whether you’re training or taking a day off. There’s no need to come up with any complicated loading phases or cycling regimens. Just be consistent and let this proven supplement do its job so you can do yours at the gym.