The short answer: For most women, 3 to 5 g of creatine a day is the well-studied dose. A 2026 trial gave adults aged 45 to 65 a 10 g daily dose. It never compared 10 g with 5 g, so it does not show you need more.
Why are people suddenly talking about 10 g of creatine?
In August 2026, researchers at Texas A&M University published a trial in the Journal of the International Society of Sports Nutrition [1]. It tested 10 g of creatine a day in middle-aged and older adults [1].
The trade site Nutritional Outlook covered it on 1 October [2], and the "10 g" number started doing the rounds. Soon the question was popping up in women's WhatsApp groups. If scientists used 10 g, is your 3 to 5 g scoop too small?
Let us look at what the trial did, what it found, and what it cannot tell you.
What did the 10 g creatine trial actually test?
The trial started with 73 healthy adults who did not exercise [1]. Sixty-four finished all 12 weeks. They were aged 45 to 65, and 40 of them were women [1].
First, each person chose a group. One group kept life as usual. The other joined an exercise programme with a weight-loss diet [1].
Then, inside each group, people were randomly given either creatine or a dummy powder called maltodextrin. They took 5 g twice a day, so 10 g in total [1]. It was double-blind, which means neither the volunteers nor the researchers knew who got what [1].
The form used was creatine monohydrate [1]. That is the plain, well-studied kind, not a fancy new version.
What did the trial find?
People who took creatine without exercising gained lean tissue, strength and muscular endurance compared with the dummy powder [1]. In this group, the gain in lean tissue was about 2.4 pounds, a little over 1 kg, over 12 weeks [2].
People who took creatine with exercise and diet lost more body fat percentage and gained more strength than those on the dummy powder [1]. Aerobic fitness, like how long you can jog, did not improve with creatine [2].
The researchers also saw changes in some memory and thinking tests and some blood markers [1]. But they wrote that these findings "should be interpreted as exploratory" [1]. In plain words, they are early hints worth testing again, not firm results.
The authors report that creatine was well tolerated [1].
Does this mean women should take 10 g a day?
No. This is the most important point in this post.
The trial compared 10 g of creatine with a dummy powder. It did not compare 10 g with 5 g [1]. So it can tell you that 10 g did better than nothing. It cannot tell you that 10 g did better than 5 g.
Think of it like a chai study that only tested three cups against no chai. You would learn that chai wakes people up. You would not learn whether one cup does the same job.
Also note the "lean tissue" number. On a DXA scan, lean tissue is everything that is not fat or bone, and that includes water. Our post on creatine and water retention explains why some of an early gain on the scale can be water inside muscle.
So how much creatine per day do women actually need?
The best summary of the evidence is a 2021 review by Antonio and colleagues, written by 11 creatine researchers [3]. It says 3 to 5 g a day is "well established" for raising creatine stores in muscle [3].
It also says you do not need to "load", meaning take a big dose for the first week. Taking about 3 to 5 g a day for at least 4 weeks fills muscle to a similar level [3].
So if your daily dose is 3 to 5 g, you are in the range the review calls well established [3].
If you want to change your dose, talk to your doctor and follow the label on your product.
What about creatine for the brain?
This is where much of the "take more" talk comes from. Some creatine brands now sell their product for focus and memory.
The evidence is not settled. In 2024, the European Food Safety Authority (EFSA), Europe's food safety regulator, looked at the data for creatine and thinking skills [4]. It concluded that "a cause-and-effect relationship has not been established" between creatine and better cognitive function [4].
The 2026 trial adds a hint, but its own authors call the memory findings exploratory [1]. So be wary of any pack that promises a sharper brain at a higher dose.
What this means if you...
...already take 3 to 5 g a day
You are using the dose most research is based on. There is no good reason, from this trial, to double it. Keep taking it daily, with or without exercise, and give it at least 4 weeks.
...are over 40 and do not exercise
This trial is about people like you. It found creatine helped lean tissue and strength even without a gym. In the same trial, people who also exercised got bigger strength gains [2]. Ask your doctor before starting, especially if you have kidney problems or take medicines.
...want creatine mainly for memory or focus
Hold your expectations lightly. The memory results so far are early, and Europe's regulator has not accepted the claim. If you try creatine, do it for the well-studied reasons, muscle and strength, and count anything else as a bonus.
Where AIM stands
Our upcoming product, FORGE, will use 5 g of micronised creatine monohydrate in one peach-mango sachet a day. That dose sits at the top of the well-studied 3 to 5 g range, not above it. Each sachet also has iron bisglycinate (9 mg of elemental iron), vitamin C 80 mg and BioPerine. FORGE is launching soon, and you can see where it fits in your routine on our find your routine page. We do not claim it improves memory.
Frequently asked questions
How much creatine should a woman take per day?
Most research supports 3 to 5 g of creatine a day. A 2021 expert review says this dose is well established for filling muscle creatine stores within about 4 weeks, with no loading phase needed. Follow the label on your product, and ask your doctor first if you have kidney problems or take medicines.
Is 10 g of creatine a day better than 5 g?
We do not know yet. The 2026 Texas A&M trial gave 10 g a day to adults aged 45 to 65. It compared this with a dummy powder, not with 5 g. It showed 10 g beat nothing over 12 weeks. It did not show that 10 g beats the usual 3 to 5 g.
Does creatine help memory in women over 40?
The evidence is early. The 2026 trial, where 40 of 64 finishers were women, saw changes in some memory tests, but the authors call these exploratory. In 2024, Europe's food safety regulator concluded a cause-and-effect link between creatine and better thinking skills has not been established.
Do I need to load creatine?
No. A loading phase means taking a large dose for about a week to fill muscles faster. A 2021 expert review says taking 3 to 5 g a day for at least 4 weeks reaches similar muscle levels. Loading is optional, not required.
Can women take creatine without working out?
Yes, and the 2026 trial tested exactly that. Middle-aged adults who took creatine without exercising gained lean tissue and strength compared with a dummy powder over 12 weeks. Part of an early lean gain can be water inside muscle. Those who added exercise saw bigger strength gains.
Sources
- Chun J, Liu Y, Kibler GL, et al. Effects of creatine supplementation with and without exercise and diet intervention on body composition, cognitive function, and markers of health in middle-aged and older adults. Journal of the International Society of Sports Nutrition, 2026, 23(sup1):2716273. doi:10.1080/15502783.2026.2716273 (PMID 42578920)
- Jacobus N. Creatine's muscle and strength benefits may extend to middle-aged and older adults, trial finds. Nutritional Outlook, 1 October 2026. nutritionaloutlook.com
- Antonio J, Candow DG, Forbes SC, et al. Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show? Journal of the International Society of Sports Nutrition, 2021, 18:13. doi:10.1186/s12970-021-00412-w
- EFSA Panel on Nutrition, Novel Foods and Food Allergens. Creatine and improvement in cognitive function: evaluation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006. EFSA Journal, 2024, 22(11):e9100. doi:10.2903/j.efsa.2024.9100
This article is for education only and is not medical advice. Supplements are not a substitute for a varied diet or for treatment from a qualified doctor. If you are pregnant, breastfeeding, on medication, or have a medical condition, talk to your doctor before starting any supplement. Individual results vary.
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