Does Creatine Make You Gain Weight?

If you’re an active individual or a fitness enthusiast, you’ve likely heard of creatine, one of the most researched supplements in the fitness industry.

Despite its well-known benefits, a common thought is often raised: Does creatine make you gain weight gain?

To find out, let’s look deeper at creatine and the science between creatine and weight gain.

Does Creatine Make You Gain Weight?

What is Creatine?

Creatine is a natural compound synthesized in our bodies and primarily stored in muscles. It plays a pivotal role in energy production, especially during short bursts of high-intensity activities like weightlifting or sprinting.

In addition to its natural presence in the body, creatine can be obtained through certain foods, such as red meat and fish. However, due to its potential to enhance athletic performance and support muscle growth, many individuals, particularly athletes and fitness enthusiasts, opt to take it in supplemental form.

This supplementation aims to saturate the muscles’ creatine stores, thereby aiding in improved exercise output and muscle recovery.

Creatine and Its Immediate Impact on Weight

When individuals begin taking creatine supplements, an uptick in their weight is often one of the first changes they observe. This isn’t due to accumulating fat or even muscle mass at this early stage.

Instead, it’s attributed to how creatine enhances the water content within muscle cells. As creatine storage in muscles increases through supplementation, it pulls additional water into these cells, a phenomenon commonly called “muscle cell volumization.”

This amplified water content can lead to a swift weight gain. For instance, a study conducted in 2003 revealed that participants experienced an average weight gain of 3.75 pounds after consuming high doses of creatine for 4 weeks [*].

A male and female in the gym working out

Does Creatine Make You Fat?

There’s a prevalent myth associating creatine with fat accumulation. However, this needs clarification. Creatine, in its essence, does not add any calories to your diet, meaning it doesn’t directly lead to fat deposition.

What some people interpret as “fat gain” when using creatine is, in reality, the increased water retention in muscles, which can temporarily alter body contours, leading to a fuller or less chiseled appearance. But it’s crucial to differentiate between this temporary water weight and actual fat.

While creatine might cause a temporary weight spike due to water retention, it doesn’t contribute to fat accumulation.

Creatine and Long-term Weight Gain: Muscle Mass

Over extended periods, the primary weight gain associated with creatine isn’t just from water—it’s muscle. By amplifying one’s capacity for high-intensity workouts, creatine can help users push past their usual limits.

This, in turn, fosters greater muscle growth as the body adapts to increased workloads. Thus, any prolonged weight increase seen with consistent creatine use is typically a testament to muscle development, not an accumulation of fat.

Essentially, creatine sets the stage for greater muscle growth by enhancing workout performance and endurance.

Creatine and muscle growth

FAQs about Creatine and Weight Gain

Does creatine supplementation lead to immediate weight gain?

Yes, most individuals observe a swift weight increase, primarily attributed to enhanced water content in muscle cells due to creatine’s muscle cell volumization effect.

Will taking creatine make me look fat?

No, creatine doesn’t cause fat accumulation. The fuller appearance is due to temporary muscle water retention, not fat deposition.

How does creatine aid in muscle development?

Creatine enhances one’s capacity for high-intensity workouts, allowing users to push past their usual limits. This helps foster greater muscle growth as the body adapts to increased workloads.

If I stop taking creatine, will I lose the weight I gained?

The water weight due to muscle cell volumization might decrease after stopping creatine supplementation. However, any muscle mass gained from enhanced workouts will remain as long as exercise and diet are consistent.


Creatine has garnered significant attention for its potential to improve athletic performance, but questions about its impact on weight remain.

To clarify, creatine does not lead to fat accumulation. The immediate weight increase after creatine supplementation can be attributed to water retention within muscle cells.

In the long term, any sustained weight gain more likely reflects muscle development if exercising while taking creatine, as it is bolstered by enhanced workout capabilities rather than increased fat.

So, while creatine may contribute to weight fluctuations, it’s vital to differentiate between water, muscle, and fat when evaluating these changes.

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