Mineral

Magnesium citrate

Mineral studied for digestive regularity, general magnesium repletion, muscle relaxation. How it works, the dose and timing studied, what it interacts with, and the research behind the grade.

Grade B evidence moderate: promising but smaller or mixed human trials
All compounds
Best for Digestive regularity, General magnesium repletion, Muscle relaxation
Typical dose 200–400 mg elemental magnesium
Timing Evening, or split; lower the dose if stools loosen
Category Mineral
How it works

What it is and the mechanism

Magnesium bound to citric acid, offering good bioavailability. Magnesium supports over 300 enzymatic reactions and neuromuscular function. The citrate form draws water into the intestine, giving it a mild osmotic laxative effect.

Dose and timing

When and how much to take

The dose below reflects the range used in published research. Match the form alongside the milligrams. Set your own wake and bed times to map the timing onto your day.

Timing visualizer

When to take Magnesium citrate

Dose: 200–400 mg elemental magnesium. Set your own wake and bed times to map the guidance onto your day.

12a6a12p6pDAY2 doses
7 amMorning dose. Take the first portion after waking.
9 pmEvening dose. Take the second portion in the evening.

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease.

Before you stack it

Interactions and cautions

Read these before combining this with other supplements or medication. The risk is rarely the headline, it is the interaction you did not check.

Interactions
  • Antibiotics (tetracyclines, quinolones), separate by 2 h
  • Bisphosphonates
Cautions
  • Laxative effect is more pronounced than glycinate
  • Kidney disease, consult a physician
Stacking

What pairs well, and what to keep apart

Derived from shared topics, complementary categories, and the interaction list. Introduce one compound at a time so you can tell what works.

Explore more

Compounds in the same topics

Often considered alongside this one. Each carries its own evidence grade.