Creatine monohydrate is one of the few sports supplements with a large evidence base and a simple use case. For most healthy adults who choose to take it, 3 to 5 g per day is a practical maintenance dose. A loading phase can saturate muscle stores faster, but it is optional. Creatine can improve repeated high intensity performance and support greater strength and lean mass gains when combined with resistance training. The early scale increase some people notice is usually water associated with increased muscle creatine, not body fat.
That is the useful summary. You do not need a premium form, a complex cycling schedule or a supplement stack around it.
What creatine actually is
Creatine is a naturally occurring compound made in the body and obtained from foods such as meat and fish. Most of the body creatine is stored in skeletal muscle, where phosphocreatine helps rapidly regenerate ATP during short, high intensity efforts.
Supplementing with creatine monohydrate increases muscle creatine stores. That can help with repeated bouts of intense work, the kind of effort involved in lifting, sprinting and many team sports. Over time, being able to perform a little more high quality work can support training adaptation.
Creatine monohydrate is also the form with the deepest research base. Other forms are marketed as more advanced or less likely to cause water retention, but they generally do not have better evidence for performance outcomes.
What the evidence says about strength and lean mass
Creatine does not build muscle in the absence of a training stimulus. Its value is strongest when it supports a progressive resistance training programme.
A 2024 systematic review and meta-analysis found that adding creatine to resistance training increased lean body mass by about 1.14 kg more than resistance training alone in adults younger than 50, with modest improvements in body fat outcomes as well [1]. That is an average across studies, not a promise for an individual client.
The International Society of Sports Nutrition has long identified creatine monohydrate as a well supported ergogenic aid for high intensity exercise and training adaptation [2]. For a serious lifter who already has training, nutrition and sleep in place, that is a much stronger evidence base than most products marketed as muscle builders. See strength versus hypertrophy for how that training stimulus should be structured.
3 to 5 g per day versus a loading phase
There are two straightforward ways to use creatine. The slow approach is simply 3 to 5 g of creatine monohydrate daily. Muscle stores rise over several weeks. The fast approach uses a loading phase, commonly around 0.3 g/kg/day divided into several doses for roughly 5 to 7 days, followed by a 3 to 5 g daily maintenance dose [2].
Loading is not more effective in the long term, it reaches saturation faster. Some people prefer to skip it because larger loading doses can cause temporary gastrointestinal discomfort or a quicker jump on the scale. Consistency matters more than timing.
You also do not need to cycle creatine on and off for it to keep working. If you stop, muscle creatine stores gradually return toward baseline.
Does creatine cause water weight or fat gain?
Creatine can increase body weight, especially during the first days or weeks of supplementation. That is not the same as gaining body fat. Increased creatine storage in muscle is associated with water being retained within the muscle cell, and over time additional lean mass from better training can also increase body weight.
This is important during a fat loss phase. A person may be losing fat while scale weight temporarily rises or stalls after starting creatine. If waist measurements, photos and training performance are improving, stopping creatine because of a two day scale change may be the wrong conclusion. Our article on losing weight versus losing fat covers how to read those signals.
Creatine itself contains no meaningful calories that would directly create fat gain. Body fat gain still requires a sustained energy surplus.
Kidneys: what the safety evidence actually says
Creatine is converted partly to creatinine, a marker commonly used in kidney function blood tests. That creates an important interpretation issue: creatine supplementation can increase serum creatinine without necessarily indicating kidney damage.
A 2025 systematic review and meta-analysis found a small increase in serum creatinine but no significant difference in measured GFR overall, supporting preserved kidney function in the studied populations [3]. A newer 2026 meta-analysis similarly highlighted that creatinine based estimates can look worse while a non creatinine filtration method did not show the same significant reduction [4].
That does not mean creatine is appropriate for everyone. Anyone with known kidney disease, unexplained abnormal kidney tests, pregnancy, significant medical conditions or medications that affect kidney function should discuss supplementation with a clinician. Tell your healthcare provider that you use creatine so laboratory results are interpreted in context.
Hair loss: what we know and what we do not
The hair loss concern largely traces back to a small study that observed an increase in dihydrotestosterone after creatine loading in rugby players. The study did not measure hair loss, and the finding has not established that creatine causes male pattern baldness.
So the accurate answer is not that creatine can never affect hair, and not that creatine makes you bald. It is that direct evidence showing creatine causes hair loss is lacking. If hair loss is a major personal concern, discuss it with a dermatologist rather than relying on supplement forums.
When creatine is worth considering, and when it is not the priority
Creatine is most useful when the fundamentals are already reasonably consistent: resistance training, adequate calories, sufficient protein and sleep. If those are missing, creatine may still have an effect, but it will not rescue a weak programme.
It can be particularly attractive for people who perform repeated high intensity efforts, strength athletes, team sport athletes, and vegetarians or others with lower habitual creatine intake. Individual response varies.
If the budget or routine can only support one change, fix training consistency and diet first. Supplements should reduce friction or provide a small evidence based advantage, not become the centre of the plan. Start with your daily protein target.
What we do with clients at Project Reshape
We position creatine after the foundation: training progression, energy intake, protein and recovery. If a healthy client wants to use it, we keep the recommendation simple. Creatine monohydrate, consistent daily dosing, no need for expensive variants, and awareness that scale weight may move. If medical history or bloodwork makes supplementation less straightforward, that becomes a clinician conversation.
Frequently asked questions
How much creatine should I take per day?
For most healthy adults who use creatine, 3 to 5 g of creatine monohydrate daily is a common maintenance approach.
Do I need to load creatine?
No. Loading can saturate muscle creatine faster, but daily 3 to 5 g dosing reaches the same destination more gradually.
Does creatine make you gain fat?
No direct fat gain comes from creatine itself. Early weight gain is usually water associated with increased muscle creatine, and longer term weight gain can include additional lean mass.
Is creatine bad for the kidneys?
Research in healthy people generally does not show impaired kidney function at recommended doses, although creatinine blood values can change. People with kidney disease or relevant medical concerns should speak to a clinician first.
Does creatine cause hair loss?
Direct evidence that creatine causes hair loss is lacking. The concern is based on limited indirect evidence involving DHT, not studies demonstrating actual hair loss.
When should I take creatine?
Timing is much less important than daily consistency. Take it at a time you will remember, with a meal or drink if that is easiest.
Conclusion
Creatine monohydrate earns its reputation because the evidence is deeper than the marketing. It can support high intensity performance, strength and lean mass gains when it sits on top of a good training plan. Keep the protocol simple, expect possible water related scale changes, and treat kidney or medication concerns as medical questions. At Project Reshape, supplements support the programme, they do not become the programme.
Next step
- Book your free assessment: request a consultation and we will set the training and nutrition foundation first.
- Related reading: how much protein you really need, strength versus muscle size, training and nutrition together.
Sources
- [1] Desai I, et al. The Effect of Creatine Supplementation on Resistance Training Based Changes to Body Composition. J Strength Cond Res. 2024;38(10):1813-1821.
- [2] Kreider RB, et al. ISSN position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017;14:18.
- [3] Effect of creatine supplementation on kidney function: systematic review and meta-analysis. BMC Nephrology. 2025.
- [4] Impact of creatine supplementation on kidney health: systematic review and meta-analysis. 2026.
- [5] Mayo Clinic. Creatine.
