Creatine Dosage: How Many Grams Per Day, When and Whether to Load

Take 3 to 5 g of creatine monohydrate per day, every day, including rest days. A loading phase is optional: it shortens the time to full muscle stores from four weeks to under one week, and the result after a month is the same. The authorised EFSA claim is tied to 3 g a day: creatine increases physical performance in successive bursts of short term, high intensity exercise.

Short answer

Timing is secondary, consistency is what matters: take the dose whenever you will actually remember it every day. Higher doses add nothing proven, and monohydrate remains the best studied form, so the more expensive variants solve nothing. If you derive the dose from body weight, use lean mass rather than total weight.

Contents

• Short answer
• What creatine does and what EFSA allows
• Dosage by body weight
• Loading phase or no loading phase
• When to take creatine
• What to combine it with and what to watch
• How much creatine is in food
• Side effects and myths
• Women, vegetarians and older adults
• Creatine forms in brief
• How to choose a product
• Creatine in Aftershock
• Frequently Asked Questions
• Sources
• Related articles

What creatine does and what EFSA allows

Most of the creatine in a muscle is stored as phosphocreatine. That is the immediate phosphate reserve the muscle uses to rebuild ATP, the molecule it burns during maximal work. The ATP already sitting in a muscle lasts a handful of seconds, and those seconds are what decide a heavy set of squats, a sprint or a repeated interval. Supplementation raises phosphocreatine stores by roughly twenty percent, so the muscle recovers a little faster between efforts.

In the European Union creatine carries exactly one authorised health claim: creatine increases physical performance in successive bursts of short term, high intensity exercise, under the condition of 3 g of creatine per day. Both the wording and the condition come from EFSA Journal 2011;9(7):2303. Anything beyond that sentence, such as fat loss, higher testosterone or better mood, is not an authorised claim and you will not find it here.

Dosage by body weight

Maintenance doses in the literature sit between 3 and 5 g per day. The gap between a 60 kg runner and a 100 kg strength athlete is real, though smaller than most articles suggest.

The table deliberately rounds the classic 0.03 g per kilogram of body weight per day (Hultman 1996) upward into the verified 3 to 5 g range. At 80 kg that formula gives 2.4 g per day, which is below the 3 g the authorised claim is conditioned on. If you want to be precise, base the calculation on lean mass rather than total body weight.

Loading phase or no loading phase

A loading phase is the only situation where taking more than 5 g per day makes sense. It is not compulsory and it is not "better": it only changes how quickly muscle stores fill up.

After a month both groups reach the same level of saturation in controlled studies. Loading is also the most common source of stomach upset and loose stools, simply because you are drinking far more creatine at once than the body absorbs. Unless you have a fixed deadline, such as the start of a competitive season, you can skip it.

When to take creatine

Creatine does not work acutely. It is not a stimulant, and a single dose before training will not add performance on the spot. It works through gradual saturation of the muscle, so what matters is taking it every day, not whether you drink it at seven in the morning or eight in the evening.

If you want an answer to the "before or after training" question: the evidence for a post workout advantage is weak and the practical difference is negligible. Pick the time you will remember. Taking it with a meal, especially one containing carbohydrates and protein, usually improves tolerance and lowers the risk of an unhappy stomach. On rest days, change nothing and take the same dose.

What to combine it with and what to watch

Creatine pulls water into muscle cells, so keep a normal fluid intake. You do not need heroic volumes, you just need to avoid being thirsty all day. Carbohydrates in a meal slightly improve creatine uptake into the muscle, but not by enough to justify planning a separate meal around it.

Caffeine is the one pairing that deserves an honest answer. A frequently cited paper (Vandenberghe 1996) found that caffeine blunted the ergogenic effect of creatine loading. Later reviews did not reproduce that finding and do not support a practical interaction. It is also a single study from almost three decades ago in a small sample. The sensible conclusion: if the combination works for you, there is no reason to change it, and if your stomach complains, split caffeine and creatine into different parts of the day.

How much creatine is in food

Creatine is not only a supplement. The body makes part of it from amino acids and we get the rest from meat and fish.

These numbers apply to the raw food. Cooking destroys part of the creatine, so a grilled steak delivers less than the table suggests. Covering 3 to 5 g a day from food alone would mean eating close to a kilogram of meat every single day. A meat free diet delivers almost none, which is why vegetarians respond more strongly to supplementation on average.

Side effects and myths

The most common real effect is a small increase in body weight, usually 1 to 2 kg in the first weeks. That is water bound inside the muscle cell, not subcutaneous bloat and not fat. If you compete in a weight class, plan for it.

Kidneys are the loudest myth. Creatine raises serum creatinine, the laboratory marker used to estimate kidney function. An elevated value in a healthy person taking creatine therefore reflects higher intake rather than damage. In healthy people there is no evidence of kidney harm. If you have existing kidney disease or take medication that stresses the kidneys, speak to a doctor first and mention creatine before any blood test.

Hair loss rests on a single 2009 paper (van der Merwe) in twenty rugby players that recorded a shift in the ratio of dihydrotestosterone to testosterone, not actual hair loss. Nobody has replicated it since. That makes it a hypothesis, not a finding. Cramps and dehydration are not supported by controlled data, and cycling creatine has no research behind it: a break only lets your stores fall.

Women, vegetarians and older adults

Women have lower muscle creatine stores than men on average, and the Smith-Ryan 2021 review concludes that they respond to supplementation in much the same way, at the same 3 to 5 g per day. The fear of "looking puffy" comes from intracellular water, which does not make the muscle look bigger from the outside.

Vegetarians and vegans start from lower stores, so their response to supplementation tends to be larger than in people who eat meat daily. Older adults are the second group with a good return, but only in combination with resistance training. The powder alone adds no muscle.

If you are pregnant or breastfeeding, have kidney disease, take medication, or you are asking on behalf of a child or teenager, talk to a doctor about creatine. This is not an area where an article should make the decision for you.

Creatine forms in brief

Monohydrate is the reference form. It has hundreds of studies behind it, it is the cheapest per gram, and no alternative has beaten it in a direct comparison. Creatine HCl, kre-alkalyn, malate and ethyl ester are sold on better solubility or on claims of "superior absorption", which is not the same thing as a better result.

The full comparison, including an evidence table for each form, is in the article on creatine monohydrate versus other forms.

How to choose a product

With monohydrate you are buying purity, not a magic molecule. Creapure is a German raw material with documented purity and low manufacturing residues; generic monohydrate is cheaper and, from a trustworthy manufacturer, works just as well. Micronised monohydrate is the same substance with smaller particles, so it mixes better and settles less.

What to check: the declared purity, whether the raw material supplier is named, third party laboratory testing, and the cost expressed per gram of creatine rather than per tub. A bigger container is not automatically the better deal if it holds less active ingredient per serving. There is more on the raw material itself on the creatine monohydrate page.

Creatine in Aftershock

Aftershock V2 contains 2.5 g of creatine monohydrate per serving. That is a practical part of the daily intake, not the whole daily dose. If you want to be inside the 3 to 5 g range, plan on topping it up with plain monohydrate, or with a second serving on a two session training day.

This matters for honest numbers: the authorised EFSA claim is conditioned on 3 g per day, so it does not apply to a single pre workout serving on its own. The point of creatine in a pre workout is different. It keeps the daily habit in one scoop instead of a second powder to remember.

Frequently Asked Questions

How much creatine per day?

For most people, 3 to 5 g of monohydrate per day. The lower end is enough for smaller or lower volume trainees, five grams is the common dose in studies and a sensible choice alongside resistance training. A daily intake of 3 g is also the condition attached to the authorised European claim about performance in successive bursts of short, high intensity exercise.

How many grams of creatine at 80 kg?

At 80 kg, 5 g per day makes sense. The 0.03 g per kilogram formula would give 2.4 g, which sits below the level where the effect is documented, so in practice the number is rounded up. If you carry a lot of muscle or train six times a week, five grams is still the right answer. Higher doses add nothing.

Do I need a loading phase?

No. Twenty grams a day for five to seven days fills the stores faster, but three to five grams a day reaches the same saturation in roughly four weeks. After a month the two protocols are equivalent. Loading also causes stomach trouble more often, so unless you have a specific deadline you can comfortably skip it.

Should I take creatine before or after training?

In practice it does not matter. Creatine works through muscle saturation built over weeks, not through the acute effect of one dose. The evidence for a post workout advantage is weak. Choose the time you will stick to every day, and take it with a meal, which usually improves tolerance.

What happens if I miss a day?

Nothing dramatic. Muscle stores fall slowly, over weeks rather than days, so one or two missed days barely touch your saturation. Do not try to catch up with a double dose, just carry on with the normal one. The problem only starts when a missed day turns into a missed month.

Do I need to drink more water on creatine?

You do not need extreme volumes. Creatine binds water inside muscle cells, so keeping a normal fluid intake and paying attention to thirst is enough, especially if you train hard or the weather is hot. The idea that creatine causes dehydration or cramps has not held up in controlled data.

Is creatine safe for women?

Yes, in the same 3 to 5 g per day range. Women have lower muscle creatine stores on average and respond to supplementation much like men. A gain of one or two kilograms is water inside the muscle cell, not subcutaneous water retention. During pregnancy and breastfeeding, ask a doctor first.

How long until creatine works?

At 3 to 5 g per day the stores are full in roughly four weeks, or in five to seven days with a loading phase. The first thing most people notice is slightly higher body weight and the ability to add a rep or two in the last sets. Do not expect a stimulant sensation, because creatine is not one.

Sources

• Kreider R. B. et al., 2017. ISSN position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. Journal of the International Society of Sports Nutrition 14:18.
• EFSA Journal 2011;9(7):2303. Scientific Opinion on the substantiation of health claims related to creatine and increase in physical performance during short-term, high intensity, repeated exercise bouts.
• Antonio J. et al., 2021. Common questions and misconceptions about creatine supplementation. Journal of the International Society of Sports Nutrition 18:13.
• Hultman E. et al., 1996. Muscle creatine loading in men. Journal of Applied Physiology 81(1).
• Smith-Ryan A. E. et al., 2021. Creatine supplementation in women's health: a lifespan perspective. Nutrients 13(3):877.
• Vandenberghe K. et al., 1996. Caffeine counteracts the ergogenic action of muscle creatine loading. Journal of Applied Physiology 80(2).
• van der Merwe J. et al., 2009. Three weeks of creatine monohydrate supplementation affects dihydrotestosterone to testosterone ratio in college-aged rugby players. Clinical Journal of Sport Medicine 19(6).
• NIH Office of Dietary Supplements. Dietary Supplements for Exercise and Athletic Performance.

One effect is well established: performance in successive bursts of short, high intensity exercise. Everything else, from cognition to recovery, rests on weaker evidence, and this article labels it as exactly that.

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• Creatine monohydrate versus other forms
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