Creatine: The Complete Guide to Understanding It Once and For All
NutritionPublished on jun. de 2026

Creatine: The Complete Guide to Understanding It Once and For All

Creatine: The Complete Guide to Understanding It Once and For All

By Vanessa Manfredini | Biomedical Scientist and future Nutritionist

Creatine is no longer just for the gym; it has become one of the most talked-about supplements of the moment. But with so much information out there, many questions remain: Is it only for those who work out? Can elderly people take it? Can women take it? What's the right dose? Do you take it with or without water? Do you need to do that so-called loading phase?

So take a deep breath, because today I'm going to answer ALL these questions simply and with scientific backing. By the time you finish reading, you'll understand creatine once and for all, without doubts. Come with me! 🌿

"Creatine is one of the most studied and safest supplements available. The problem has never been creatine, but the lack of good information about it."

What exactly is creatine?

Creatine is a substance that our own body naturally produces, mainly in the liver, and which we also find in foods like meat and fish. It is stored in the muscles and serves as a quick source of energy.

Think of it as an "extra battery" for your muscles and, as we'll see, also for your brain. When we supplement, we increase the body's available energy stores.

What creatine is really for

Here's the part that surprises many people: creatine goes far beyond muscle gain. Studies show benefits in several areas:

  • Strength and muscle mass: the most well-known benefit, aids in muscle gain and maintenance
  • Bone health: contributes to bone strength, important against osteoporosis
  • Cognition and memory: studies suggest positive effects on the brain
  • Sarcopenia prevention: the loss of muscle that occurs with age
  • Metabolic support: may help with insulin sensitivity

But is creatine only for those who exercise?

This is one of the biggest questions, and the answer is NO! Creatine is not exclusive to those who train. It brings benefits even for non-athletes, especially when we talk about muscle, bone, and brain health.

💡 Important: the best results in strength and muscle appear when creatine is combined with some type of exercise, especially strength training. But the benefits for bones, brain, and prevention of muscle loss occur even without being a high-performance athlete.

Can elderly people take creatine?

They can, and more than that, they often benefit greatly! With aging, we naturally lose muscle and bone mass. Studies suggest that creatine helps elderly individuals maintain strength, mobility, and autonomy, in addition to possible memory benefits.

For the older population, this can mean more independence in daily life and a lower risk of falls. It is one of the groups that has been most researched in recent years, with encouraging results.

⚠️ Attention: elderly individuals, especially those with kidney conditions or on medication, should always consult their doctor or nutritionist before starting. Professional guidance ensures safety and optimal results.

What about women? And during menopause?

Women can and should consider creatine! For a long time, it was seen as a "men's thing," which is a myth. Women benefit from creatine for strength, body composition, and bone health.

During menopause, this care becomes even more relevant, because it is a phase of greater muscle and bone mass loss. Creatine, along with good nutrition and exercise, can be an important ally during this phase. It connects directly with what I always talk about regarding women's health! 💚

And children, can they take it?

Here, caution is advised. The use of creatine in children and adolescents is not generally recommended, precisely because there is a lack of robust safety studies in this age group for use as a sports supplement. Any situation involving children should be evaluated exclusively by a pediatrician. Never on your own.

What is the best creatine to choose?

With so many options on the shelf, doubt arises. But science is very clear here:

The best choice: creatine monohydrate. It is the most studied, safest, best absorbed by the body, and often the most affordable. You don't need to pay extra for "boosted" versions with different names. Monohydrate is king!

An extra tip: look for products with a quality seal and reliable origin, as the supplement market is poorly regulated.

What is the correct dose of creatine?

This is the most common question! There are two ways to use it:

MethodHow it works
Single daily dose (most common today)About 3 to 5 grams per day, every day, continuously
Loading phase (optional)Higher doses in the first few days to fill stores faster, then maintain the normal dose

The good news is that the loading phase is not mandatory. Taking 3 to 5 grams per day consistently will fill stores over time, with the same final result. Simpler and more practical! 🌿

💡 The secret is consistency: creatine works through continuous use, not the exact moment you take it. The important thing is to remember to take it every day.

Take with water? Before or after training?

Let's clarify these practical questions once and for all:

Take with water?
Yes! Creatine should be dissolved in water or some liquid. And it's important to maintain good hydration throughout the day when using creatine.
Before or after training?
It doesn't make a big difference. Since consistency is what matters, you can take it at the time that's easiest to remember. For those who train, right after training is a practical option.
Do I need to take it with something sweet?
It's not mandatory. There's an idea that taking it with carbohydrates improves absorption, but for daily use, taking it with water works very well.
Can I take it on non-training days?
Yes! Precisely because of consistency, the ideal is to take it every day, whether you train or not.

Is creatine harmful? Does it make you gain weight? Does it cause bloating?

Creatine is one of the safest supplements available, with decades of research. Regarding the most common myths:

  • Does it make you gain weight? No. It is not fat. There may be slight water retention inside the muscle at first, which is different from gaining weight.
  • Is it bad for the kidneys? In healthy individuals, evidence shows safety. Those with kidney disease should only use it under supervision.
  • Does it cause bloating? Water retention occurs inside the muscle, not under the skin, so it doesn't cause the bloating many people fear.

In summary

Creatine is safe, well-studied, and full of benefits that go far beyond the gym. It is suitable for those who train, for those who don't train, for elderly individuals, and for women, including during menopause. Monohydrate is the best choice, the dose is usually 3 to 5 grams per day, consistently, dissolved in water, and at the time that is easiest for you.

As always, professional guidance is ideal to adapt everything to your body and your reality. But now you truly understand creatine, without myths and without doubts! 💚

"Good information is what transforms a common supplement into a powerful tool for your health. And now you are well-informed."

Did this guide answer your questions about creatine?

Tell me in the comments: were you already taking creatine or were you hesitant? Do you have any remaining questions? I love bringing real science, without myths or fear-mongering. And follow me on social media for more content like this:


With care and science, Vanessa 🌹


📚 Scientific References

This content is based on scientific studies and positions from specialized societies. Main references:

  1. 1. Kreider RB, et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. Journal of the International Society of Sports Nutrition, 2017.
  2. 2. Candow DG, Forbes SC, Kirk B, Duque G. Current evidence and possible future applications of creatine supplementation for older adults. Nutrients, 2021.
  3. 3. Candow DG, et al. Effectiveness of creatine supplementation on aging muscle and bone: focus on falls prevention and inflammation. Journal of Clinical Medicine, 2019.
  4. 4. Smith-Ryan AE, et al. Creatine supplementation in women's health: a lifespan perspective. Nutrients, 2021.

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