When to take it
With food and plenty of water.
← All supplements
MineralsModerate evidence
Potassium
Also known as: K
Potassium is the main mineral inside cells and, together with sodium, regulates fluid balance, nerve signals and muscle function including the heart. The best sources are vegetables, fruit, legumes and potatoes; supplements contain only small doses.
What it is used for
- Maintenance of normal blood pressure – strong evidence for dietary intake (EFSA)
- Normal muscle and nerve function – strong evidence (EFSA)
- Exercise-related cramps – weak evidence
Forms and how they differ
citrate
well tolerated, may slightly alkalise urine
chloride
common in electrolyte mixes and salt substitutes
gluconate
gentle form with low potassium content
Pairs well with
Magnesium, sodium (in electrolytes during sport).
Do not combine / separate
Do not combine with potassium-based salt substitutes without consulting your doctor.
Watch out for
With kidney disease and certain blood pressure or heart medicines (e.g. ACE inhibitors, sartans, potassium-sparing diuretics) potassium can rise dangerously – always consult your doctor. In pregnancy only after agreeing with your doctor.
Safety
Do not exceed the label dose. Prefer getting potassium from food.
Practical tip
A serving of vegetables or legumes often contains more potassium than a whole supplement tablet.
Products containing Potassium 8
Potassium 99 mgaspartate · 99 mg / capsule
Potassiumchloride
Potassium + Magnesium 100 mgcitrate + malate · 100 mg / capsule
Potassium citrate 300 mgcitrate · 300 mg / capsule
Potassium 99 mgcitrate · 99 mg / capsule
Potassiumcitrate
Potassiumgluconate
Potassium 99 mgorotate · 99 mg / capsule
How to read the evidence rating
Strong evidenceModerate evidenceWeak evidenceNo evidence
Strong = several good human studies or official recommendations; moderate = promising but smaller studies; weak = few studies or mixed results; no evidence = claims not confirmed.
Combination check
Select the supplements you take and, if relevant, your medicines. We show what interferes, what needs a time gap and what to watch out for.
Check Potassium with othersWhich supplements do you actually need?
Fénix Methode picks them from your blood results and schedules when to take what – no needless purchases.
From the same group
Bone support blendModerate evidenceBoronWeak evidenceCalciumModerate evidenceChromiumWeak evidenceCopperWeak evidenceElectrolytesModerate evidence
Important notice
This information is educational and does not replace advice from a doctor or pharmacist. We do not give medicine dosages. Supplements are no substitute for a varied diet; if pregnant, breastfeeding, ill or on medication, consult a doctor first.