The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
on the cognitive side we know that a small amount of creatine is synthesized in the brain and the creatine can cross the bloodb brain barrier but um the brain certainly does not take up creatine to the same extent as the muscles do
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I've been recommending this to patients for 6 months now. The big shift is patients actually do it because the explanation is concrete.
Same in nutrition counseling. The before/after framing helps.
Tracking with a CGM on top of this for 3 months. Variability dropped quickly and stayed dropped.
Worth noting the 0.71 SMD in the Kreider meta is in trained athletes. Effect in untrained adults runs closer to 0.3 — still meaningful, but the panel should reflect that gradient.
Good catch. Could the brief surface the training-status interaction inline?
Um, but the 10 grams was where creatine was now >> was not rate limited. >> It was Yeah, exactly. Now you were you were increasing levels of creatine in the brain.
And I think that that was where initially when researchers were looking into like the effects of creatine on the brain. The five grams a day didn't seem to be doing anything in terms of like getting creatine into the brain.
However, none of these studies measured brain creatine directly, and shifting brain stores likely requires higher and/or longer dosing to nudge levels ~3–10%.
my guess is five grams you'd have a small increase in brain creatine content
it probably makes enough for the nonstressed individual but during times of metabolic stress the question is will vegans or omnivores need more and it's likely that it that's true
but it took three months to accumulate in the brain uh unlike our muscle which acts as like a vacuum it sucks in all the creatine from our blood our brain says no no no I'm only going to take what's in our blood I.E supplementation when need be
remember you need about two to three grams now I'm not sure about your diet but you're going to need that just to maintain your muscle
so the thought is to get an improvement in brain creatine stores you need longer duration of supplementation or higher dosages so the best lines of evidence using mrss have shown that higher 20 gam a day seem to be the most viable there's been a single study looking at about four gram a day but it took three months to accumulate in the brain
like the low dose remember you need about two to three grams now I'm not sure about your diet but you're going to need that just to maintain your muscle and then comes down to your genetics what's more in Jeopardy is it your bones or brain so again the 5% that's remaining throughout the
5 g of creatine monohydrate daily improves muscle strength and lean mass in healthy adults at standard training loads.
Creatine improves cognitive performance, especially under sleep deprivation and high cognitive load.
Creatine improves cardiovascular health markers and reduces all-cause mortality risk.
Creatine supports bone-mineral density in post-menopausal women when paired with resistance training.
Women need higher creatine doses (8–10 g/day) than men to reach the same intramuscular saturation.