Best corrected by food. Supplemental doses are capped for cardiac safety.
TrustedSupp Tier System™ · Tier 2Take until levels correct
Check before you startThis one has documented interactions with medication classes where the consequences are serious. If you take any prescription medicine, run it past a pharmacist before starting.
Evidence strength
82/100Strong
WEAKLIMITEDMODERATESTRONGVERY STRONG
What the evidence supports: correcting measured deficiency; blood pressure benefit from food is well established.
This scores how well-supported the claim above is — not how much benefit you personally would get. A high score on a narrow claim does not extend to everything the product is marketed for.
How long to take it
Only as directed by a doctor, usually alongside a diuretic or a documented low level.
Who it's actually for
People with a measured deficiency. Not a general supplement.
Safe upper limit
Unverified
99 mg per tablet in most countries; higher only by prescription
Excess potassium can cause dangerous heart rhythm disturbances, especially with reduced kidney function.