How Creatine Works: A Plain-English Guide to the Basics

Creatine is a natural compound, made in your body from amino acids and found in meat and fish, that helps muscle cells regenerate energy during short, intense efforts like lifting, sprinting and jumping. Supplementing raises the amount stored in your muscles, which is why it is one of the most studied supplements in sports nutrition, and why Gummy Gardens built a 5g daily serving into 4 easy gummies.

This guide covers the basics in plain English: what creatine is, how it works, where it came from, which form research uses and who tends to benefit.

What is creatine, exactly?

Creatine is a small molecule your body builds from three amino acids: arginine, glycine and methionine. Humans make enough for normal function, and adults also get creatine from animal foods, principally meat and fish (Brosnan and Brosnan, 2016).

It is not a steroid, a stimulant or a hormone. It is a nutrient your cells already use every day. Most of it sits in skeletal muscle, with smaller amounts in the brain and other tissues.

How does creatine work in your muscles?

Muscles run on ATP, the cell's energy currency. During a heavy lift or a sprint, ATP is used faster than the slower energy systems can rebuild it. Stored phosphocreatine fills that gap by donating a phosphate group to rebuild ATP almost instantly.

Supplementation increases how much creatine your muscles store and promotes faster regeneration of ATP between bouts of high-intensity exercise, which can support performance and greater training adaptations (Cooper et al., 2012). The same review notes that creatine's effects diminish as the length of exercise increases, so it is most relevant for short, repeated efforts.

Gummy Gardens provides 5g of creatine per 4-gummy serving in two lines: Low Sugar (Mixed Berry, Mandarin Orange, Cherry Apple, Pineapple) and Sugar Free Tropical.

Where did creatine come from?

Creatine was first identified in meat in 1832 by the French chemist Michel Eugène Chevreul, who named it after the Greek word for flesh. For more than a century it was mostly a subject of biochemistry, as scientists worked out how phosphocreatine supports muscle contraction.

Supplement research arrived much later. A large meta-analysis of 100 placebo-controlled studies noted that most research on creatine supplementation has come into existence since 1994 (Branch, 2003). Since then, the evidence base has grown into hundreds of published studies.

What does the research say creatine does?

The International Society of Sports Nutrition summarizes that creatine supplementation increases muscle creatine, which may explain improvements in high-intensity exercise performance and greater training adaptations. The society also notes research on post-exercise recovery and that short- and long-term supplementation is safe and well tolerated in healthy individuals (Kreider et al., 2017).

The meta-analysis mentioned above found small but significant effects on body composition and short, high-intensity exercise, with no differences in effect between men and women or between trained and untrained people. It also found creatine did not appear to improve running or swimming performance (Branch, 2003). In short: creatine supports strength and power work, not long endurance efforts.

For a wider look at benefits beyond muscle, read our guide on how strong the evidence is for creatine's health benefits.

Are all forms of creatine the same?

No. Many "novel forms" of creatine have been marketed over the years. A critical review of their bioavailability, safety and regulatory status concluded that the standard form used in most research is still the only source of creatine with substantial evidence for bioavailability, efficacy and safety, and is the form professional societies recommend (Kreider et al., 2022).

That is the form we use: plain creatine at the 5g daily amount used in research, in a gummy instead of a powder.

Who is creatine for?

Anyone who does strength, power or interval training can consider it, and research has increasingly looked beyond young male athletes. Experts writing in 2025 describe creatine as a safe and effective intervention for improving certain aspects of exercise performance and health across the lifespan, and they examined questions such as whether timing matters or whether creatine works without exercise (Antonio et al., 2025).

Groups that often show interest include:

• Women who lift or train and want strength support
• Adults over 40 focused on maintaining muscle with resistance training
• Vegetarians and vegans, who get little or no creatine from food
• Anyone who wants a convenient daily routine without powder

New to all this? Our beginner's guide to creatine covers your first month step by step.

Frequently asked questions

Is creatine a steroid?

No. Creatine is a natural compound made from amino acids and found in meat and fish. It is not a hormone or a stimulant.

What does creatine do in simple terms?

It helps muscles regenerate ATP, their quick energy source, during short, intense efforts like lifting and sprinting.

Does creatine help with endurance running?

Research shows its effects diminish as exercise gets longer, and a large meta-analysis found no clear benefit for running or swimming performance.

How much creatine should I take each day?

Research commonly uses 3 to 5g a day. Gummy Gardens provides 5g per 4-gummy serving.

Which type of creatine is used in Gummy Gardens?

The standard form of creatine used in most research, at 5g per serving.

Try it the easy way: Gummy Gardens is $40 a bag (30 servings), with a 30-day money-back guarantee, one per customer. Sign up for our emails for $10 off your first order. Shop Low Sugar or Sugar Free Tropical.

This article is for educational purposes and is not medical advice. Consult your healthcare provider before starting any supplement.

Sources

• Brosnan ME & Brosnan (2016). The role of dietary creatine. Amino Acids.
• Cooper R et al. (2012). Creatine supplementation with specific view to exercise/sports performance: an update. J Int Soc Sports Nutr.
• Branch JD (2003). Effect of creatine supplementation on body composition and performance: a meta-analysis. Int J Sport Nutr Exerc Metab.
• Kreider RB et al. (2017). International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr.
• Kreider RB et al. (2022). Bioavailability, Efficacy, Safety, and Regulatory Status of Creatine and Related Compounds: A Critical Review. Nutrients.
• Antonio J et al. (2025). Part II. Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show? J Int Soc Sports Nutr.