What is Magnesium (Di-Citrat)?

Magnesium (Di-Citrat) is a magnesium supplement form bound to citric acid. It is commonly used because it is generally well absorbed and supports many magnesium-dependent functions.

What are the main benefits of magnesium di-citrate?

It supports normal nerve transmission, muscle contraction, and heart rhythm. Many people use it for sleep quality, relaxation, muscle cramps, and bone support, especially if intake is low.

How much magnesium di-citrate should I take?

Typical supplemental intake is about 200–400 mg per day of elemental magnesium. Check the label for “elemental magnesium,” since the compound weight is higher than the elemental amount.

When should I take magnesium di-citrate for sleep?

Many people take it in the evening, such as with dinner or 1–2 hours before bed. If it upsets your stomach, taking it with food or splitting the dose can help.

Who should be cautious with magnesium di-citrate?

People with kidney disease should avoid magnesium supplements unless advised by a clinician. It can also interact with some medications, so separate dosing from certain antibiotics or thyroid medication as directed by a healthcare professional.

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Magnesium (Di-
Citrat)

Moderate study situation·7/10

A higher score indicates better study conditions, but not necessarily effectiveness.

Magnesium di-citrate is a highly bioavailable form of magnesium supplement commonly used for sleep, muscle, bone, and cardiovascular support.

Sleep Improvement Cardiovascular Support Muscle Repair Stress Relief Essential Nutrient Bone Health

dose range

200–400 mg elemental magnesium

1–2 doses daily

Consumption

Take with food to improve absorption and reduce gastrointestinal discomfort.

Not fat-soluble.

Best time

Can be taken at any time of day with meals; evening use may benefit sleep.

Description

Magnesium di-citrate provides magnesium in a form that is well-absorbed and gentle on the stomach, supporting a variety of vital physiological functions including nerve transmission, muscle contraction, heart rhythm, and bone structure.

benefits

Main effects with level of evidence

Moderate

Note on evidence

Clinical evidence supports magnesium supplementation for deficiency, some cardiovascular benefits, and mild improvements in muscle cramps and sleep quality. Benefits for stress, general population muscle recovery, and bone health are less consistent.

Improves sleep quality and latency

Moderate

May help reduce sleep onset latency and improve overall sleep quality, especially in individuals with magnesium deficiency or mild insomnia.

Particularly relevant for: Adults with difficulty sleeping · Older adults

NIH-ODS-Magnesium · NIH Office of Dietary Supplements: Magnesium Fact Sheet Examine-Magnesium · Examine.com: Magnesium

Supports cardiovascular health

Moderate

Helps maintain normal blood pressure and heart rhythm, and may modestly reduce blood pressure in individuals with hypertension.

Particularly relevant for: People with elevated blood pressure · General population

NIH-ODS-Magnesium · NIH Office of Dietary Supplements: Magnesium Fact Sheet Cochrane-MagnesiumHypertension · Cochrane Review: Magnesium supplementation for hypertension

Aids muscle function and recovery

Moderate

Supports healthy muscle contraction and may reduce muscle cramps, especially in those who are deficient.

Particularly relevant for: Athletes · People prone to muscle cramps

NIH-ODS-Magnesium · NIH Office of Dietary Supplements: Magnesium Fact Sheet Examine-Magnesium · Examine.com: Magnesium

Contributes to bone health

Moderate

Essential for bone mineralization and supports bone structure as a component of the bone matrix in conjunction with calcium and vitamin D.

Particularly relevant for: Postmenopausal women · Older adults

NIH-ODS-Magnesium · NIH Office of Dietary Supplements: Magnesium Fact Sheet Examine-Magnesium · Examine.com: Magnesium

May help with stress and relaxation

Limited

Magnesium plays a role in nervous system regulation and stress hormone balance; supplementation may aid relaxation, particularly where dietary intake is low.

Particularly relevant for: Individuals with high stress

Examine-Magnesium · Examine.com: Magnesium

Safety & Information

Important safety information & known risks

For educational purposes only • not medical advice

Magnesium di-citrate is generally safe at recommended dosages, but adverse effects and contraindications exist for specific populations or high doses.

warning notices

Excessive supplemental magnesium can cause diarrhea or, rarely, more serious adverse effects such as irregular heartbeat in those with kidney dysfunction.
People with significant kidney impairment should avoid supplemental magnesium unless under doctor supervision.
Avoid magnesium supplements in cases of severe kidney dysfunction unless prescribed and monitored by a healthcare provider.
People taking certain heart or neuromuscular medications (e.g., some antibiotics, bisphosphonates, or muscle relaxants) should consult a clinician before use, as interactions may occur.
Monitor for symptoms of diarrhea or gastrointestinal upset at higher doses; reduce dose if severe.
Do not exceed 350 mg/day supplemental magnesium in children unless directed by a healthcare professional.

Known interactions with medications

Tetracycline antibiotics
Quinolone antibiotics
Bisphosphonates
Certain muscle relaxants

Contraindications / special precautions

Severe renal insufficiency or kidney failure

interactions

Important interactions between active ingredient ↔ supplement / medication / food

Magnesium can interact with certain medications and other nutrients, primarily affecting absorption or leading to additive effects.

High doses of calcium can interfere with magnesium absorption when taken together.

nutrient · Calcium

SeparateModerateSeparate by 2h

Why

Both minerals may compete for absorption in the intestine when consumed in large amounts simultaneously.

recommendation

Take magnesium and calcium supplements at least 2 hours apart if using high supplemental doses.

NIH-ODS-Magnesium · NIH Office of Dietary Supplements: Magnesium Fact Sheet

Magnesium can interfere with absorption of tetracycline and quinolone antibiotics.

drug · Tetracycline antibiotics

SeparateModerateSeparate by 2–4h

Why

Magnesium can chelate with these drugs, reducing their effectiveness.

recommendation

Take magnesium supplements at least 2–4 hours before or after the antibiotic.

NIH-ODS-Magnesium · NIH Office of Dietary Supplements: Magnesium Fact Sheet MayoClinic-Magnesium · Mayo Clinic: Magnesium supplement (oral route, parenteral route)

High doses of magnesium may reduce iron absorption.

nutrient · Iron

SeparateModerateSeparate by 2h

Why

Magnesium can form insoluble complexes with iron, lowering its bioavailability.

recommendation

Separate magnesium and iron supplements by at least 2 hours.

Examine-Magnesium · Examine.com: Magnesium

Magnesium supplements can lower the absorption of bisphosphonates used for osteoporosis.

drug · Bisphosphonates

SeparateModerateSeparate by 2h

Why

Co-administration can reduce the effectiveness of bisphosphonate medications.

recommendation

Take bisphosphonates at least 2 hours before magnesium supplements.

NIH-ODS-Magnesium · NIH Office of Dietary Supplements: Magnesium Fact Sheet

mechanisms of action

Brief explanations of how it works

Cofactor in enzymatic reactions

Magnesium acts as a cofactor in over 300 enzymatic reactions, including those involved in energy metabolism, DNA/RNA synthesis, and neurotransmitter release.

NIH-ODS-Magnesium · NIH Office of Dietary Supplements: Magnesium Fact Sheet