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Creatine Dosage by Sport: Minimum, Maximum, Timing and What It Does to the Scale

3–5 g a day, every day — and why your sport barely changes that. The minimum that works, the largest useful dose, worked examples at 60, 80 and 100 kg, and what the first two weeks actually do to your weight.

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The dose barely changes between sports. What changes is whether the extra body mass you carry is a price worth paying.

For a healthy adult, 3–5 g of creatine monohydrate a day is the answer — every day, training day or not. Without a loading phase your muscle stores fill up over roughly three to four weeks. With one, you take about 0.3 g per kilogram of body weight a day for five to seven days, split into four or five small portions, then drop back to 3–5 g. Your sport does not change those grams much. It changes how much the extra kilogram or two of water is worth to you.

In short: 3 g/day is a solid floor, 5 g/day is the practical ceiling for most athletes, and more than that has no demonstrated benefit for the vast majority. "Maximum" here means the largest useful sports dose, not a safety limit. Take it daily, in whatever form is easiest — monohydrate, with water or a meal. Loading is optional and only buys you speed, not a better end state.

Sources checked August 2026: the ISSN position stand on creatine (2017), the ISSN "common questions" paper (2021), the NIH Office of Dietary Supplements factsheet, and the EFSA health-claim opinion. General information, not medical advice.

How much creatine per day

Creatine works by topping up phosphocreatine in your muscles, which is the fuel your body reaches for in the first few seconds of any hard effort. There is a ceiling: once the store is full, more creatine does not make it fuller. That single fact explains almost every dosing recommendation below.

The dose is therefore driven by how much muscle you have to saturate and how much you lose per day, not by which sport you play. The ISSN position stand puts daily maintenance at roughly 3–5 g, or about 0.03 g per kilogram of body weight. The EU's authorised health claim — that creatine increases physical performance in successive bursts of short-term, high-intensity exercise — is written for adults taking at least 3 g a day, which is a useful independent anchor for the lower end.

Does the dose change by sport?

Barely. What differs is the trade-off.

Strength

3–5 g

More reps at load · costs 1–2 kg of early water weight

HYROX

3–5 g

Sled and stations · you carry that water over 8 km

Sprint

3–5 g

Repeated sprints and recovery · weight response varies

Endurance

3–5 g, if you want it

Intervals and hills, not steady-state · mass costs every climb

Combat

3–5 g

No loading near a weigh-in — ever

Climbing

Weigh it up

Strength-to-weight can get worse before it gets better

There is no evidence base for inventing different gram figures per sport, so this table does not. The honest sport-specific advice is a decision, not a dose: if your performance is judged per kilogram of body weight, the same 3–5 g is a genuine trade rather than a free win.

For a runner or a Hyrox athlete this is worth thinking through properly. Creatine helps the parts of your training that are short and hard — the intervals, the hill reps, the strength sessions that make you durable. It does not improve steady aerobic performance, and you carry the water weight over every one of the eight kilometres. Plenty of Hyrox athletes take it and are right to; a marathoner four weeks out is a different calculation.

That split is not marketing language — it is which energy system the work runs on. Creatine tops up the one that covers the first seconds of a maximal effort, and does nothing for the one that carries the other fifty-nine minutes. The guide to aerobic and anaerobic training sets out where the handover happens, and why almost every session uses both.

Minimum, standard and maximum

1. <3 gBelow standardUnder about 3 g a day

   May still work, but saturates slower — and there is little reason to under-dose something this cheap.

2. 3 gMinimum, solid entryThe dose behind the EU performance claim

   Enough for most people.

3. 3–5 gStandardThe ISSN position stand's maintenance range

   Where almost everyone should sit, every day, indefinitely.

4. >5 gContext onlyVery large or very heavily training athletes

   No demonstrated extra benefit for most recreational athletes.

Two boundaries worth stating plainly. "Maximum" above means the largest dose with a demonstrated point, not a toxicity threshold — that is a different question, covered under safety. And single portions above about 10 g are a bad default because gastrointestinal upset becomes more likely; that is why loading protocols are split across the day rather than taken in one hit.

Worked examples: 60, 80 and 100 kg

Notice what the per-kilogram formula does: for a 60 kg athlete it lands below the practical standard. That is the clearest sign that the formula is a convenience rather than a precision instrument — take the 3–5 g range as the recommendation, and use the per-kilogram figure only as a sanity check if you are unusually large or unusually small.

Do you need a loading phase?

No. Loading is a shortcut, not an upgrade.

With loading

Full in about a week

~0.3 g/kg/day for 5–7 days, split into 4–5 portions, then back to 3–5 g.

→

Without loading

Full in 3–4 weeks

3–5 g a day from the start. Same saturation, no gastrointestinal risk, nothing to remember.

What loading buys

• With loading: muscle stores are full in about a week.
• Without loading: the same stores are full after roughly three to four weeks at 3–5 g/day.

The end state is the same. What loading buys is three weeks of time — worth having if you have a race or a training block starting imminently, and not worth the gastrointestinal risk or the extra fuss otherwise. The one situation to actively avoid it: anywhere near a weigh-in. A fast few kilograms of water is the last thing a fighter or a weight-class lifter wants in the week before making weight.

When does it start working?

There is no first-dose effect. The timeline runs on saturation.

The honest framing is that creatine does not make a session feel different. It lets you do slightly more work in the sessions you were going to do anyway, and the sum of that over months is the benefit.

What creatine actually feels like

Usually: nothing.

No kick, no tingle, no pump on the day you start. If someone tells you they felt their first dose of creatine, they were probably feeling their pre-workout. Some people notice a slightly fuller, tighter feeling in the muscles after a week or two. Many notice nothing at all and are still getting the full effect.

Reports of better recovery between sessions are common but subjective and harder to pin down than the performance effect, so treat them as plausible rather than proven.

The practical consequence: judge it from your training log, not your body. If your top set went from six reps to eight at the same load over a month, that is the signal. "Feeling stronger" is not.

The scale and the mirror

This is where most of the confusion sits, so let us separate three things that get muddled.

Water. Creatine is stored in muscle along with water. A loading protocol commonly adds around 1–2 kg of body mass in the first week, sometimes a little more, and it is water — inside the muscle, not under the skin. Without loading the same change arrives gradually and is easy to miss.

Muscle. Real additional muscle takes months of training and enough food. Creatine does not build it; it lets you train slightly harder, and the training builds it.

Fat. Creatine does not cause fat gain. If your body fat rises while taking it, that is your calorie intake, not the supplement.

Does it make you look bloated? For most people, no — the water sits inside the muscle, which tends to look fuller rather than puffier. Separately: if you feel bloated in the stomach after a large single dose, that is a digestive reaction to the dose size, not water retention. Split it up.

How to take it

• Every day, including rest days. You are maintaining a store, not fuelling a session.
• Timing matters much less than consistency. Take it when you will remember.
• Creatine monohydrate. It is the form nearly all the research used, and the cheapest. More expensive forms need to prove an advantage before they earn the price; most have not.
• With water or with a meal, whichever you tolerate better.
• No cycling needed. There is no requirement to come off it periodically.
• Missed a day? Take your normal dose. Do not double up — that is the single-dose size that upsets stomachs.
• It is not a substitute for training, food or sleep. Creatine is one of the very few supplements with a solid evidence base, and it is still worth far less than your daily protein intake and a training plan you actually follow.

If you want the wider view of what is worth buying at all, our guide to the supplements that actually work sorts the short list from the long one.

Safety and the usual myths

Everything here applies to healthy adults. If you have kidney disease, are pregnant or breastfeeding, take medication that affects the kidneys, or have any medical uncertainty, this is a question for your doctor rather than an article.

• Kidneys. In healthy people, no reliable evidence of kidney damage at normal supplemental doses in the research reviewed by the ISSN and summarised by the NIH. Pre-existing kidney disease is a genuine exception and the reason the paragraph above exists.
• Cramps and dehydration. The concern is long-standing and the evidence has not supported it; if anything the research points the other way. It is not a reason to avoid creatine, and it is also not a reason to drink less.
• Hair loss. This traces back to a single small study in rugby players reporting a rise in a hormone metabolite — not hair loss itself — and it has not been reliably replicated. Treat "creatine causes hair loss" as unproven rather than established either way.
• Sports supplements and purity. Any supplement can be contaminated; if you compete under anti-doping rules, buy a batch-tested product.

Frequently asked questions

Is 3 g or 5 g of creatine better?

For most people the difference is small and 5 g is the safer bet if you are larger or training hard, while 3 g is enough to satisfy the dose behind the EU performance claim. Since the store has a ceiling, the practical answer is: pick one inside 3–5 g, take it every day, and do not think about it again.

Is 10 g of creatine a day too much?

For a typical recreational athlete it is more than the evidence shows a use for — the muscle store is already full at 3–5 g a day. Some very large or very heavily training athletes are advised higher intakes, and short loading protocols use 20–25 g a day for under a week. Single portions above roughly 10 g make stomach upset more likely, which is why loading is split across the day.

Should I take creatine on rest days?

Yes. You are keeping a muscle store topped up rather than fuelling a workout, so a rest day is exactly like a training day. Skipping rest days simply slows saturation.

Is creatine worth it for runners and Hyrox athletes?

For Hyrox, usually yes — the sled, the wall balls and the repeated hard efforts are exactly what creatine supports, and the strength work behind them benefits too. For a pure endurance runner the case is weaker: the benefit lands on intervals and strength work rather than steady aerobic pace, and you carry the extra water weight over every kilometre. It is a reasonable choice for a runner who lifts, and a poor one immediately before a goal race.

The bottom line

• 3–5 g of monohydrate a day, every day. Your sport does not change that; it changes whether the extra mass is a price worth paying.
• Loading is optional. It buys about three weeks of time and nothing else — and it is the wrong move near a weigh-in.
• The early weight is water, not fat. Real muscle comes from the months of training that creatine helps you do slightly more of.
• Judge it from your log, not your body. There is no kick, and there is not supposed to be.

General information only: This article is general nutrition and training information and is not medical advice. Creatine is discussed here for healthy adults. If you have kidney disease, are pregnant or breastfeeding, take relevant medication, or have any doubt about whether a supplement is appropriate for you, talk to your doctor or a qualified healthcare professional first.

Sources

1. Kreider et al. (2017): ISSN position stand — safety and efficacy of creatine supplementation in exercise, sport and medicine (loading and maintenance protocols, safety)
2. Antonio et al. (2021): ISSN — common questions and misconceptions about creatine supplementation (weight gain, cramps, hair loss, timing)
3. NIH Office of Dietary Supplements: Dietary supplements for exercise and athletic performance (creatine section)
4. EFSA (2011): Scientific opinion on creatine and increase in physical performance during short-term, high-intensity, repeated exercise bouts (the 3 g/day claim condition)