Creatine is a sports supplement taken to improve performance in short, hard efforts — lifting, sprinting, and repeated high-intensity work — and to help build muscle over time. It is one of the most studied supplements available, it works for most people, and it works the same way in women as in men.
What is Creatine?
Creatine is a compound your body already makes, from amino acids, in the liver and kidneys. You also get it from food — red meat and fish are the main dietary sources. Around 95% of the body’s creatine is stored in skeletal muscle.
Its job there is energy. Muscles run on ATP, which is exhausted within seconds of maximum effort. Creatine, stored as phosphocreatine, regenerates ATP almost immediately, and supplementing raises how much is held in muscle.
That mechanism defines what creatine does and does not do. It helps with brief, intense, repeated efforts. It does very little for steady endurance work.
Creatine is a food supplement, not a registered medicine. It does not appear in the South African Medicine Price Registry, and is not expected to — supplements are regulated differently here and are not assessed for efficacy before sale, so checking what you buy falls to you.
Creatine monohydrate is the form with the overwhelming majority of the research behind it. Newer forms — hydrochloride, ethyl ester, buffered “kre-alkalyn”, liquid creatine — are marketed as superior. None has convincingly outperformed monohydrate in independent testing, and all cost more.
What is Creatine commonly used for?
The reasonably well-supported uses are:
- Strength and power output. More reps at a given weight, more total work per session. Over weeks, that added training volume is what drives results.
- Muscle growth, indirectly, through the extra training you can do — plus a genuine increase in water held inside muscle cells.
- Repeated sprints — football, rugby, netball, combat sports, sprint intervals.
- Recovery between hard sets and, to some degree, between sessions.
- Preserving muscle while in a calorie deficit, or with age.
- Cognitive effects, an active research area with some evidence during sleep deprivation and in people who eat little meat. Promising, not established.
Two things are worth stating plainly.
Creatine is not a fat burner. Searches for creatine and fat loss are common, and the honest answer is that it does not burn fat. What it does is help you maintain strength and muscle while dieting, which matters, because muscle retained during weight loss is what keeps your metabolism from falling further than it needs to. If the scale rises a kilogram or two in the first fortnight, that is water drawn into muscle, not fat gained.
It works the same in women. There is no separate women’s creatine and no reason to dose differently by sex — dosing relates to body mass and muscle mass. Women often gain less scale weight simply because they carry less muscle to hydrate. The concern that creatine causes bulkiness or bloating is largely unfounded; the water is held inside muscle cells, not under the skin.
Creatine also does nothing on its own. It is a multiplier on training, and without the training there is nothing to multiply.
Who commonly looks for Creatine and why
- People starting resistance training, wanting to know whether it is worth adding. For most, it is — it is cheap and among the few supplements with real evidence.
- Women, often after conflicting advice about whether it is “for them” or will cause bulking.
- People trying to lose fat, hoping it helps directly. It supports the process without doing the work.
- Team sport players in codes built on repeated sprints.
- Older adults, increasingly, for muscle and strength maintenance alongside resistance training — an area where the evidence is genuinely encouraging.
- Vegetarians and vegans, who start with lower muscle creatine because they eat none of it, and who often respond more noticeably than meat eaters.
- Parents of teenage athletes, asking whether it is appropriate. Discuss that one with a doctor or a registered dietitian rather than a supplement shop.
Roughly two or three in ten people are non-responders, usually because their muscle stores are already near saturation. If you have trained consistently on creatine for a couple of months with no change in performance, that may simply be you.
What to check on the label before taking Creatine
- The form. Look for creatine monohydrate. Blends and proprietary formulas often contain a modest amount of creatine plus fillers, stimulants and marketing.
- The actual dose per serving, not per scoop of a blend. Typical maintenance is about 3–5 g daily; some people load with more for the first week to saturate stores faster. Loading is optional — daily use reaches the same point in about a month.
- Third-party testing. Look for an independent certification mark, such as Informed Sport or NSF Certified for Sport. This matters most for tested athletes, since supplement contamination with banned substances is a documented cause of failed drug tests.
- Added stimulants or proprietary blends that do not declare amounts.
- Added sugar, in flavoured or pre-mixed products.
- The manufacturer, and whether there is a contactable local distributor.
Practical points: creatine does not need to be timed around a workout — consistency matters far more than timing. Take it daily, including rest days. It dissolves better in warm liquid. And drink enough water, since it draws water into muscle.
Safety, interactions and when to seek professional advice
For healthy adults, creatine monohydrate has one of the strongest safety records of any supplement, with studies running for years at standard doses.
Speak to a doctor or pharmacist before taking it if you:
- Have kidney disease or reduced kidney function, or a family history of it. Creatine raises blood creatinine — a marker used to estimate kidney function — which can look like kidney impairment on a blood test when it is not. Tell whoever orders your blood tests that you take creatine, or the result may be misread.
- Have liver disease or diabetes.
- Are pregnant or breastfeeding, where evidence is limited.
- Take regular anti-inflammatories, diuretics or any medicine affecting the kidneys.
- Are under 18.
- Are an athlete subject to drug testing — only use certified products.
The usual side effects are minor: some stomach discomfort, bloating or nausea, mostly during loading and mostly avoidable by using a standard daily dose instead, splitting it, and taking it with food. Muscle cramping is often blamed on creatine but has not been shown in controlled studies; if anything the evidence points slightly the other way.
Stop and seek advice if you notice a change in urination, ankle swelling, persistent nausea or unexplained tiredness. See a doctor or registered dietitian if you have a chronic condition or are being pushed towards an expensive stack — creatine monohydrate is among the cheapest things on the shelf, and among the few that earns its place.
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Frequently asked questions
What is creatine used for? Improving performance in short, intense efforts — lifting, sprinting, repeated high-intensity work — and supporting muscle growth through the extra training that allows.
What is creatine used for in women? Exactly the same things, and it works the same way. There is no separate women’s version and no need to dose differently by sex.
Is creatine used for fat loss? Not directly — it does not burn fat. It helps preserve muscle and strength while dieting, which supports the overall result.
Will it make me look bulky or bloated? Creatine draws water into muscle cells rather than under the skin. Most people see a small early rise on the scale and no change in appearance beyond looking fuller.
Do I need to load? No. Loading saturates muscle stores in about a week; taking 3–5 g daily reaches the same place in around a month with less stomach upset.
Is it safe for my kidneys? In healthy adults, long-term studies show no kidney harm at standard doses. If you have kidney disease, speak to a doctor first — and always tell your doctor you take it before a blood test.
Which form should I buy? Creatine monohydrate. It has the most evidence and is the cheapest.