Mineral
Magnesium Citrate
Well-absorbed magnesium with gentle laxative effect. Good for constipation alongside magnesium benefits.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Common questions
How much Magnesium Citrate should I take?
The typical range is 200-400 mg elemental Mg. Safe long-term
When should I take Magnesium Citrate?
Evening. Optional.
Which form of Magnesium Citrate is best?
Capsule — Standard. Other forms in the catalog: Powder, Liquid.
Is Magnesium Citrate safe?
Commonly reported: Loose stools, Cramping at high doses. Serious warnings: Dehydration with overuse. Avoid kidney disease
Which Magnesium Citrate supplement scores highest?
Double Wood Magnesium Citrate Supplement, at 86/100. Scored on dose accuracy, form, label transparency and third-party testing — no brand pays to be listed or ranked.
Daily target & upper limit
420 mg / day · UL 350 mgMagnesium Citrate has an established daily reference intake. See best forms, label synonyms, upper-limit warnings, and top-scoring supplements:
Magnesium Citrate dosage reference →Primary uses
- Magnesium repletion
- Constipation relief
- General supplementation
How it works
- Good bioavailability
- Osmotic effect in intestines
- Citrate may prevent kidney stones
Dosage
- Typical range
- 200-400 mg elemental Mg
- Timing
- Evening
- With food
- Optional
- Duration
- Safe long-term
- Special populations
- Good if constipation also an issue
Forms
- Capsule
- Powder
- Liquid
Safety
Common side effects
- Loose stools
- Cramping at high doses
Contraindications
- Bowel obstruction
- Kidney disease
Products containing Magnesium Citrate
Top-scoring supplements in our catalog that list Magnesium Citrate on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Known interactions
- Cautionwith calcium
High calcium can impair magnesium absorption
- Infowith magnesium
High-dose magnesium may slightly reduce zinc absorption
- Synergywith magnesium
Magnesium needed for vitamin D activation
- Synergywith melatonin
Complementary sleep support
- Synergywith glycine
Both support sleep through different mechanisms
- Cautionwith magnesium
Magnesium may enhance BP lowering effect
Evidence notes
Good absorption, gentle laxative
Grade A: Multiple well-designed human trials support the main claims.
Related in Mineral
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.