Five grams a day is the best evidenced supplement in this whole knowledge base.
RecommendedFor cellular energy buffering, cognition and healthy ageing.
“Creatine is the closest thing supplements have to a boring, dependable pension: decades of safety data and a benefit that quietly compounds.”
One faithful sentence per source, linked to the moment it was said; quiet chips mark where money is involved.
“Three to five grams of monohydrate daily is the best-studied dose in all of sports nutrition.”
an exercise physiology PhD · podcast episode · 01:11:42
“The cognition signal is most visible under stress: sleep deprivation, vegetarian diets, ageing brains.”
a neuroscientist PhD · lecture · 00:39:58
“People with kidney disease should talk to their doctor first; for everyone else the safety record is long and calm.”
a GP · interview · 00:13:21
Worth discussing with your GP, especially if you take medication or are pregnant. Entrain describes what is publicly taught; it does not prescribe.
Easy conversational cardio is the single best investment in your mitochondria.
Strong consensus“Easy aerobic work is the most reliable stimulus we know for making more and better mitochondria. It is unglamorous and it works.”
A few deliberate minutes of cold each week build resilience you can feel.
Recommended“Cold is a clean, dose-able stressor. A cool shower finish or a winter swim asks the mitochondria to make heat, and they adapt by making more capacity.”
Promising logic, young evidence, worth a gentle personal trial.
An early signal“The hormonal logic is real, the individual variation is enormous, and the trial evidence is younger than the headlines suggest. Track your own pattern first.”