How Much Water Should You Drink on Creatine?
Reading time: 9 min
Creatine changes how water is stored in your muscles, which is why hydration often becomes part of the conversation when people start taking it.
But the idea that creatine dramatically increases your daily water needs is actually not directly supported by any evidence.
So, this means you don’t need to force down extra litres just because you’ve added creatine to your routine. Your hydration needs still depend on the same main things they always do. This being how active you are, how much you sweat and the environment you’re in (McDermott et al., 2017).
In the article below, we’ll look further at how creatine affects water retention, how much water to drink with a creatine dose, and when it might make sense to increase your daily fluid intake.
- Why Does Creatine Affect Water Retention?
- How Much Water Should You Drink Per Creatine Dose?
- Signs You're Not Drinking Enough Water
- Can You Drink Too Much Water on Creatine?
- Should You Combine Electrolytes and Creatine?
Why Does Creatine Affect Water Retention?
Your muscles use ATP as an immediate source of energy. During a heavy set or an all-out sprint, those available stores can run down within seconds. Creatine, stored partly as phosphocreatine, helps rebuild ATP quickly so your muscles can keep producing energy (Kreider et al., 2017).
Creatine is also osmotically active, which means water moves with it. Your muscles take creatine up through a sodium-dependent transporter, and water follows to help maintain balance inside the cell. This means the water is stored in your muscles. That’s why you may notice a small change on the scale when you first start taking it.
Over longer periods, however, studies often show no lasting increase in total body water relative to muscle mass. And the water inside your muscle cells works in your favour, since it acts as a signal for protein synthesis that supports muscle growth over time.
The increase in water inside the muscle is also where the dehydration myth comes from. It may sound logical that more water inside muscle cells leaves less available elsewhere in the body. But in fact, that doesn’t mean creatine increases the risk of dehydration directly (Antonio et al., 2021).
Taurine, which is often used in creatine supplements, also contributes to fluid balance by helping cells regulate their volume as fluid levels change. This process is known as cellular osmoregulation, and it is one of taurine's main physiological functions highlighted in the review “The Dose Response of Taurine on Aerobic and Strength Exercises” from 2021.
So, creatine and taurine interact with cellular fluid balance in their own different ways. Creatine increases water inside muscle cells as muscle creatine stores rise, while taurine helps cells regulate their internal fluid environment. And that makes taurine an interesting companion to creatine (Chen et al., 2021).
In our Puori Creatine+, we've chosen to combine those exact two. Explore the formula to learn more about each ingredient and the science behind the product.
How Much Water Should You Drink Per Creatine Dose?
There’s no special water-to-creatine ratio. You simply need enough liquid to dissolve your serving.
Creatine monohydrate dissolves at around 14 grams per litre in room-temperature water. That means a 3 g serving needs about 215 ml, which is close to the 200-250 ml we recommend for each levelled creatine scoop. A 5 g serving needs closer to 360 ml.
Warm water helps creatine dissolve faster, but how completely it dissolves doesn’t change how much your muscles can take. So if a few grains settle at the bottom of your glass, you’re not losing the benefit. For the best result, mix it fresh and drink it straight away.
| Creatine dose | Hydration | |
|---|---|---|
| Rest day | Your daily serving 3-5 g | Drink to thirst and have water with your meals. |
| Training day | Your daily serving 3-5 g | Drink during your session and replace fluids afterwards. |
| Hot weather or a long session | Your daily serving 3-5 g | Drink more to replace what you lose through sweat. |
One thing that stays noticeably the same in the table above is your creatine dose.
And therefore, we can confidently say, what changes your water needs much more is usually how much you sweat. Adult sweat rates during exercise can range from 0.5 to 4 litres per hour, depending on the person, temperature and intensity. So drink enough water to avoid excessive fluid loss.
Remember, your creatine shake also counts toward your daily hydration.
Signs You're Not Drinking Enough Water
Your body shows a few different signs, when it's running low on fluids. We’ve listed a few of them below.
- Increased thirst. Thirst is one of the most obvious signals that your body wants more fluid. It often becomes more noticeable after exercise, in warm conditions, or after periods of heavier sweating.
- Darker urine. Urine that is noticeably darker than your usual pale-yellow color can be a sign that your body is conserving water. It is useful as a general guide. Although food, supplements, and recent fluid intake can also affect the color.
- Headaches. A headache can sometimes appear when you haven’t gotten enough fluid, especially after exercise or if you spent a lot of time in the heat. On its own, though, it is not a specific sign of dehydration.
- Dizziness. Feeling light-headed or dizzy can be a sign that your fluid intake has not kept up with your losses. This deserves particular attention if it happens during or after a hard workout.
- Unusual fatigue. If a workout feels harder than expected or you feel unusually drained afterward, hydration may be one factor to consider alongside sleep, nutrition, and training load.
- A noticeable drop in body weight during exercise. Losing body weight over the course of a long or sweaty session often reflects fluid loss through sweat. The greater the loss, the more attention your post-workout hydration may need.
If you experience these symptoms, it's important to pay attention to your overall hydration, since creatine itself isn't necessarily the cause.
Can You Drink Too Much Water on Creatine?
Yes, it’s possible to drink more water than your body actually needs.
Taking creatine does not mean you need to force down large quantities of water. Your intake should still follow your activity level, sweat loss, and environment as mentioned above (McDermott et al., 2017).
Very large amounts of water consumed over a short period can dilute the sodium in your blood. This becomes more relevant during prolonged exercise if you continue to drink far beyond the amount of fluid you lose.
Urine color can also offer a simple everyday clue. Pale yellow generally suggests reasonable hydration. Completely clear urine throughout the day is not something you should aim for, and it can sometimes reflect a higher fluid intake than you actually should.
So simply drink according to your needs, keep an eye on your usual hydration signals, and avoid forcing extra water into your system just because you’re taking creatine.
Should You Combine Electrolytes and Creatine?
Water is only part of the hydration picture. When you sweat, you lose sodium too, and the amount can vary considerably from person to person. Other minerals matter as well. Potassium contributes to normal muscle function, while magnesium contributes to electrolyte balance and normal muscle function.
For most workouts, plain water is enough. If you train for less than an hour, you generally don’t need anything more. During longer or more intense sessions, particularly in the heat, adding carbohydrates or electrolytes can be useful. Taking creatine doesn’t change that for you. Your training, environment and sweat loss determine what you need (McDermott et al., 2017).
Researchers have also looked at creatine combined with electrolytes. In one six-week study, a creatine and electrolyte formula improved strength and power compared with placebo. One noticeable thing is that there was no creatine-only group, so the study can’t tell us how much the electrolytes exactly contributed to those results (Hummer et al., 2019).
Puori Creatine+ combines creatine monohydrate and taurine in an unflavoured, vegan-friendly powder. Mix it into 200–250 ml of cold water, a smoothie or another drink, once a day with a meal. All of our batches are third-party tested and certified by The Clean Label Project against more than 200 contaminants, with results available through the QR code on the pack. Creatine increases physical performance in successive bursts of short-term, high-intensity exercise.
FAQ
How Much Water Weight Can You Gain From Creatine?
When starting creatine, you may gain around 1-2 kg of water weight. It particularly happens during the first few weeks. This water is mainly stored inside your muscle cells and can make your muscles appear slightly fuller (Wax et al., 2021; Antonio et al., 2021).
Is Water Retention From Creatine Bad?
No, water retention from creatine is generally not a bad thing. Creatine primarily draws water into the muscles, which is part of how it supports muscle function and performance.
Does Creatine Make You More Thirsty?
Some people may notice increased thirst, but it isn’t necessarily the case for everyone. Just stay on top of your usual need for hydration. Creatine itself doesn’t cause dehydration, so there’s no need to dramatically increase your water intake.
How Much Water Should You Drink When Taking Creatine?
There is no specific amount of extra water you need to drink just because you take creatine as part of your routine. Aim to stay well hydrated throughout the day, and drink more when you exercise, sweat heavily, or feel thirsty.
The views and information shared in this article are for informational and educational purposes only and have not been evaluated, reviewed, or endorsed by the U.S. Food and Drug Administration (FDA). This content is not intended to diagnose, treat, cure, or prevent any disease or medical condition. Always consult a qualified healthcare provider or licensed physician before making any changes to your health, medication, or wellness routine.
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