Fitness Myths Under the Microscope

Although bodybuilding has popularized many of these training principles, the underlying science extends far beyond bodybuilding itself. From elite athletes and recreational sports to rehabilitation and healthy aging, understanding how nutritional strategies influence performance benefits virtually everyone.

One Supplement, Countless Myths

Few sports supplements have been studied as extensively as creatine. At the same time, few have generated as many myths. Some people still believe it is little more than "water weight." Others are convinced it damages the kidneys, causes hair loss, or only works if you follow an elaborate loading protocol. The truth, as so often in exercise science, is far more interesting. Creatine is one of the best-researched nutritional supplements ever developed, yet many of the beliefs surrounding it date back to the 1990s and no longer reflect what modern research tells us.

Back Then, the Loading Phase Was Almost Sacred

When I first started strength training decades ago, one recommendation was treated almost like a law of nature. If you wanted creatine to work, you had to begin with a loading phase. For about a week, athletes commonly consumed around 20 grams per day, usually divided into four servings, before reducing the intake to a daily maintenance dose. That was simply how everyone did it. Magazine articles recommended it, training partners repeated it, and supplement companies actively promoted it. I followed exactly the same approach because, at the time, hardly anyone questioned it.

Coming Back to Creatine Years Later

As the years passed, my own training priorities changed. I was no longer trying to maximize every kilogram on the barbell as I had in my younger years. Resistance training remained an important part of my routine, but health, mobility, and long-term fitness gradually became more important than chasing personal records. When I decided to start taking creatine again, I skipped the loading phase completely. More recently, however, I began reading about research suggesting that creatine may offer benefits extending beyond muscle performance, including possible effects on healthy aging, cognitive function, and overall physical resilience. That raised an obvious question: if creatine has become interesting for so many different reasons, was the traditional loading phase ever really necessary?

What Creatine Actually Does

Before answering that question, it helps to understand what creatine actually does inside the body. Creatine is stored primarily within skeletal muscle, where it helps regenerate adenosine triphosphate (ATP), the immediate source of energy for short, high-intensity muscular efforts. During demanding exercise such as sprinting, jumping, or resistance training, ATP is consumed within seconds. Stored phosphocreatine helps replenish it rapidly, allowing muscles to continue producing force for a little longer. That additional energy may only translate into one or two extra repetitions or a slightly heavier lift, but repeated over hundreds of workouts, those small improvements can accumulate into meaningful long-term progress.

The Biggest Misunderstanding: Water or Muscle?

One reason creatine has remained controversial is that body weight often increases during the first weeks of supplementation. Critics frequently point to this as evidence that creatine "only adds water." In reality, the situation is far more nuanced. Yes, creatine increases water content inside muscle cells, particularly during the early phase of supplementation. But this intracellular water is not the same as becoming bloated or retaining fluid under the skin. In fact, the increased cellular hydration may itself support a more favorable environment for training adaptation. More importantly, creatine does not build muscle simply because it attracts water. It helps athletes train harder, recover their high-intensity performance more effectively between sets, and accumulate a greater training stimulus over time. The extra muscle that develops months later is earned in the gym—not created by water alone.