Creatine and the Brain: a Scientific Look Without Sugarcoating
You’ve probably heard of creatine. If you’ve ever glanced at the sports nutrition aisle or been interested in biohacking, that name has definitely come up. It’s usually associated with ripped muscles, heavy barbells, and athletic records. And that’s justified — creatine monohydrate is considered the most researched and safest supplement in the fitness world.
But lately the scientific spotlight has shifted. We’re now interested not only in how many kilograms you can lift, but how quickly and clearly you can think. Creatine for the brain — a new trend? Or are we wishing for results that aren’t real?
Today I want to walk you through a recent 2026 review published in the _Journal of Dietary Supplements_. The paper, provocatively titled “Creatine Supplementation and the Brain: Have We Put the Cart Before the Horse?”, invites us to slow down a bit and look at the facts without the marketing fluff. 🎥
🔄 2026 update. This article was written before two important developments: EFSA’s formal decision (November 2024) and a correction to the key memory meta-analysis. I’ve updated the text below to match the current evidence. For the full practical guide — dosing, safety, contraindications — see the new article “Creatine: who it actually helps, how much to take, and when to ask your doctor”.
The energy hunger of our “control center”
Let’s start with the basics. Our brain is an incredibly energy-demanding organ. Taking up only about 2% of body weight, it consumes up to 20% of all the energy we get. 🧠 Imagine a powerful supercomputer that never shuts down.
The primary energy currency in cells is the molecule ATP. When the brain is working hard (solving tricky problems, under stress, or battling lack of sleep), ATP stores are depleted almost instantly. That’s where creatine comes in. It functions like a “fast charger” or backup battery: it helps quickly replenish ATP, allowing neurons to keep working without interruption.
Reality versus expectations: what the science says
I know how much we all want to find that one “magic pill” for productivity. But the data urge caution. The main message is this: our knowledge about creatine for muscles is much deeper than our knowledge about its effects on the brain.
📋 What we know today:
- The regulators said no. In November 2024 the European Food Safety Authority (EFSA) reviewed 23 studies submitted by a creatine manufacturer and refused permission to claim an effect on cognitive function. The wording is blunt: a cause-and-effect relationship between creatine supplementation and improved cognitive function has not been established.
- The memory meta-analysis was corrected by its own authors. After the correction, the overall effect on memory fell to statistically non-significant. A signal remained only in the narrow 66–76 age band; in young adults, nothing.
- More is not better. A direct test of the “brain protocol”: 10 g and 20 g a day for 6 weeks in healthy young adults. Processing speed rose 19% — and 18.7% on placebo. No difference. Memory and executive function: unchanged too.
- The dosing problem. For muscles, 3–5 grams a day is enough. But the brain is protected by the blood–brain barrier, which is very reluctant to let creatine through: 20 g a day for 4 weeks raised brain creatine by only about 9%.
Where a signal might still exist
Does this mean the topic is closed? No. But it has to be discussed carefully — as hypotheses being tested, not as proven benefit.
- States of metabolic stress. If there is an effect, it seems to show up when the brain is “in trouble” — for example, during significant sleep deprivation. If you’re well-rested and healthy, you probably won’t notice a difference.
- Vegetarians and vegans. The main dietary sources of creatine are meat and fish, so it’s reasonable to hypothesise that this group responds more strongly. But honesty matters here: there is no convincing evidence of a “rise in cognitive scores” in vegetarians, and in a 2025 study vegans’ baseline creatine was comparable to omnivores’. This is a hypothesis, not an established fact.
- Older adults. The only signal surviving the correction sits in the 66–76 age band. And the single randomised trial in older women (56 participants, 24 weeks, 5 g a day) showed no effect on cognition or on mood.
Notice what is not on this list: promises of “mental clarity”, of lifting brain fog, or of improving memory in menopause. Those claims are not supported by the evidence today.
The aesthetics of a mindful approach: how to incorporate this into life
I always tell my clients: before adding something new, tidy up the foundation. Creatine is a great add-on, but it won’t replace quality sleep and balanced nutrition.
In my approach we always start with the foundation — a system inspired by the principles of the Harvard Plate. This creates the kind of “metabolic architecture” on which any supplements will work many times more effectively.
If you decide to try creatine, keep a few important rules in mind:
- Form and purity. Plain monohydrate with independent batch certification (Informed Sport, NSF Certified for Sport). Expensive forms have shown no advantage.
- Dose. 3–5 grams a day. The 15–20 gram “brain protocols” are a hypothesis from review articles, not a tested recommendation — and in a direct test they did not work.
- Hydration. Creatine draws water into cells, so drink plenty of clean water.
- Patience. Unlike caffeine, creatine’s effect is cumulative. Saturation takes 3–4 weeks.
Is it worth it?
The 2026 review and EFSA’s decision aren’t a reason to give up on creatine. They’re a reason to become a more informed consumer. We shouldn’t “put the cart before the horse,” expecting that one scoop of powder will solve all concentration problems.
Creatine is a tool with well-proven benefits for muscle and strength and with as yet unproven benefits for the brain. It makes sense to buy it for the former, not the latter. 💬
⚠️ Important reminder: before starting any supplements, be sure to consult a professional. This is especially important with chronic kidney disease, in pregnancy, while breastfeeding, on medication, or with a psychiatric diagnosis. Check our legal disclaimers.
If you want to dive deeper into your condition and understand which nutrients your body specifically lacks for mental clarity, I recommend starting with a professional biomarker analysis. This will help us act based on solid data, not guesswork.
Small steps toward big clarity
Brain health isn’t the result of one trendy supplement. It’s the sum of your daily choices. What you eat for breakfast, how you handle stress, and how much time you dedicate to rest all shape your cognitive resilience. 🌿
I invite you to move toward health gently and beautifully. Without “toxic motivation,” but with deep respect for the biology of your body. If you need support on this path, I’m always here.
You can book an express consultation so we can create your personalized nutrition and support plan together.
Join our community on Instagram: \_anna.bertoldi\_. There I share even more scientific breakdowns and the aesthetics of healthy living every day.
Let’s create your best version together — step by step, mindfully, and with self-compassion. ✨
_Sources:_
- _EFSA NDA Panel, EFSA Journal 2024;22(11):e9100 — refusal of the cognitive health claim._
- _Journal of Dietary Supplements, 2026: "Creatine Supplementation and the Brain: Have We Put the Cart Before the Horse?"_
- _Prokopidis et al., Nutrition Reviews 2023;81(4):416 — with correction at 81(11):1497._
- _Moriarty et al., Brain Sciences 2023;13(9):1276 — 10 and 20 g/day, no effect._
- _Alves et al., PLoS One 2013;8(10):e76301 — 56 women aged 60–80, no effect._
- _Long-term safety data: NET-PD Investigators, JAMA 2015;313(6):584._