Magnesium + Potassium

Can you take Magnesium and Potassium together?

Yes — magnesium helps the body hold on to potassium. No timing needed. Anyone on potassium-affecting medication should be monitored.

SynergyStrong evidence

Yes — magnesium helps the body hold on to potassium.

What to do. No timing needed. Anyone on potassium-affecting medication should be monitored.

Mechanism

Low magnesium makes low potassium hard to fix

Magnesium deficiency increases potassium loss through the kidneys, so low potassium often doesn't correct until magnesium is replaced.

Evidence: Strong evidence — Randomized trials or authoritative reviews (e.g. NIH ODS).

Timing

Taking more than these two?

Add the rest of your stack and your medications for a complete check.

Buying guide

Magnesium
- Magnesium glycinate (well tolerated, popular for sleep)
- Magnesium citrate (also a mild laxative)
- Avoid magnesium oxide if absorption matters
Potassium
- Potassium citrate or chloride
- Food first: potatoes, beans, bananas, leafy greens