Welcome to the first Supplement Spotlight. In this new Tuesday series, we’ll take one supplement at a time and look at it calmly: what it is, what the research suggests, and where the excitement runs ahead of the evidence. No miracle promises, just a clear and kind look.
We’re starting with creatine, because it’s so often misunderstood. Some have heard it’s hard on the kidneys, or that it’s a kind of steroid. The real story is quieter, and for many of us, more useful.
What creatine is
Creatine is a natural compound your body makes from amino acids, the building blocks of protein. Your liver and kidneys make a little of it every day, and most of it ends up stored in your muscles.
Think of it as a small, quick reserve of energy. When you lift something heavy or climb steep stairs, your muscles need energy fast, and creatine helps them refill it for efforts that last seconds rather than minutes.
Where it comes from naturally
You also get creatine from food. Meat and fish are the main sources, so a beef stew or a tin of tuna will carry some. Plant foods contain almost none.
That’s why people who eat little or no meat tend to have lower stores in their muscles. Nothing is missing in a worrying way, but the reserve may be a little less full. A supplement simply tops it up.
What the research suggests
Creatine is one of the most widely studied supplements around, but the evidence isn’t equally strong for everything.
Strength and muscle. This is where the evidence is strongest. Research suggests that creatine, combined with regular strength training, can help people build a little more strength and muscle than training alone. The key word is combined. Creatine doesn’t do the work for you; it seems to help your muscles get a bit more out of the training you already do.
Energy for short bursts. Creatine appears to help with brief, hard efforts: a set of squats, a sprint, heavy bags up a hill. It’s less likely to make a difference to long, steady activity like an easy walk.
The brain and ageing. This is the newest and most uncertain area. Researchers are asking whether a supplement might support memory and thinking, especially during poor sleep or in later life. Some studies have found small benefits and others have found none. It’s early, the results are mixed, and it’s something to watch with interest rather than a reason to buy a tub.
Who it may help
Older adults. As the years go by, we naturally lose some muscle, and getting up from a low chair or carrying the shopping can start to feel harder. Studies in older adults have found that creatine alongside strength exercise may help with muscle and strength more than exercise alone. That’s worth knowing if staying steady and independent matters to you.
Plant-based eaters. Because vegetarian and vegan meals contain so little creatine, some research suggests plant-based eaters may notice more of a difference from a supplement than meat eaters do. If you’ve recently changed the way you eat, Top Sources of Plant-based Protein has ideas for the rest of the plate too.
Active people. If you lift weights, play netball or soccer, or have just started a strength class, creatine may help you train a little harder and bounce back between efforts.
Using it simply
Most people who use it take a small amount once a day, usually a few grams, as the label suggests. Stir it into water, juice or your morning oats. The time of day matters far less than taking it most days.
You may have read about a loading phase, with larger amounts for the first week to fill your stores faster. It’s optional, and you don’t need it. A small daily amount gets you to the same place over a few weeks rather than a few days, and tends to be gentler on the stomach.
Because creatine supports the muscles you use, it fits best alongside some strength work. That can be simple: standing up from a chair a few times, or wall push-ups while the kettle boils.
Three myths, gently set aside
“It makes you bloated.” At first, some people see the scale creep up a little. That’s water moving into the muscles, where creatine draws it. It isn’t fat, and it isn’t the puffy bloating many of us dread.
“It’s hard on your kidneys.” In healthy people taking usual amounts, creatine has been well studied, and research hasn’t found that it harms the kidneys. One thing worth knowing: creatine can raise a marker called creatinine on routine blood tests, which can look like a kidney concern when it isn’t. If you have regular blood tests, let whoever reads your results know you’re taking it.
“It’s a steroid.” It isn’t. The steroids people worry about are man-made versions of hormones. Creatine isn’t a hormone at all; it’s a compound your body makes on its own and that you already eat in everyday foods.
Looking after yourself
Keep to the label dose. More isn’t better. Your muscles can only hold so much.
Drink water through the day. Keeping a glass nearby is a kind habit anyway. There’s more in Hydration: Simple Truths About Drinking Enough Water.
Choose creatine monohydrate. It’s the most studied form by far, and often the most affordable.
Pick a reputable product. Look for a brand with one clear ingredient on the label and, ideally, independent testing for quality.
If you live with a kidney condition, or you’re on regular treatment for anything, keep to that treatment and let your existing care know what you’re thinking of trying. Creatine should fit around the care you already have, never replace it.
How little is enough
If creatine feels right for you, a small amount each day, a glass of water and a little strength work you enjoy is the whole of it. If it doesn’t, the movement and good food matter more anyway.
Our bodies keep changing, and so does the way we eat and move. Meeting those changes with curiosity rather than worry is its own kind of strength.
If anything feels off after you start, stop and please get it looked at; your body deserves that care.
There’s more along these lines on the Guides page.