amino acid
Creatine
Most researched sports supplement. Replenishes phosphocreatine for ATP regeneration.
What it’s good for
Creatine for Brain Fog
Solid1 study · 1 supporting · 0 against
6 safety notes
Builds an energy reserve in your brain — useful when you are short on sleep.
Dose: 5 g
Creatine for Chronic Fatigue
Not verified1 study · 0 supporting · 0 against
7 safety notes
Why it gets suggested: Keeps a reserve of quick energy in your cells, which is the basis for a claim about tiredness.
Dose: 5 g
Why we could not verify it: The study measured memory and reasoning in vegetarians. Fatigue was never measured.
Creatine for Low Stamina
Not verified1 study · supporting · against
7 safety notes
Why it gets suggested: Recharges the fast energy system your muscles use for short, hard efforts.
Dose: 3–5 g
Why we could not verify it: We have not found research on this that we would stand behind. People take it for this, so the claim is here rather than hidden.