Magnesium Citrate

Support muscle relaxation, nerve function and energy with highly absorbable magnesium

★★★★★ Nutri Tailor — 4.6/5 "Excellent" on Trustpilot
  • Relaxed muscles and less cramping
  • Rapid absorption for quick effect
  • Nerve and energy function support
90 capsules
22 day supply

per day

Guaranteed additive free
Highest purity
Therapeutically effective

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Have questions about Magnesium Citrate?

"Is magnesium citrate good for constipation or is there a better form?"

"I need magnesium but I'm sensitive to loose stools. Will this be too much?"

"How does this compare to the bisglycinate for sleep?"

Get tailored guidance from Nutri365, your personal AI health expert.

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Magnesium citrate is one of the most widely used and well absorbed forms of supplemental magnesium. Each capsule provides 85mg of elemental magnesium bound to citric acid. The citrate form dissolves readily in water, is efficiently absorbed in the intestines and has good bioavailability compared to oxide or carbonate forms. Magnesium citrate also has a mild osmotic effect, drawing water into the bowel, which makes it particularly useful for those who experience constipation alongside magnesium deficiency.

Magnesium is involved in over 300 enzymatic reactions in the body, including energy production, muscle and nerve function, protein synthesis, blood pressure regulation and blood sugar control. Despite its importance, magnesium deficiency is remarkably common, with studies suggesting that up to 70% of adults do not meet the recommended daily intake. Stress, alcohol, caffeine and processed food diets all deplete magnesium further. The vegetarian capsule shell makes this suitable for most dietary requirements.

Take 2 capsules twice per day with meals, providing 340mg of elemental magnesium daily.

This can be adjusted based on individual needs. For general maintenance, 2 capsules once daily (170mg) may be sufficient. For therapeutic use (muscle tension, stress, constipation, sleep support), the full dose of 4 capsules daily is appropriate.

If loose stools occur, reduce the dose. The osmotic effect of magnesium citrate means that higher doses can have a gentle laxative action. For some people, this is a benefit rather than a side effect. If the bowel effect is unwanted, switching to Magnesium Bisglycinate (which has no osmotic action) while maintaining a similar magnesium intake is a practical alternative.

Each capsule contains: %NRV*
Magnesium
85 mg 23%

† Nutrient Reference Value (NRV*) not established

Magnesium Citrate, Hydroxypropyl Methylcellulose (capsule).

Recommended dose: 2 capsules, twice per day with meals.

  • Suitable for men.

  • Suitable for women.

  • Suitable for people under sixteen years of age.

  • If pregnant or breastfeeding consult your healthcare professional before purchasing and consuming this product.

  • Suitable for vegetarians.

  • Suitable for vegans.

  • No gluten containing ingredients.

  • No nut containing ingredients.

  • No dairy containing ingredients.

If you are taking medication consult your prescribing physician before purchasing and consuming supplements.

Store in a cool dry place.

Keep out of reach of children.

Information displayed does not constitute medical advice.

This product should not be used as a substitute for a varied diet.

Once opened, consume within 3 months.

Magnesium Citrate
Quality manufacturing

Quality promise

Why clinical grade matters

  • GMP certified, pharmaceutical grade manufacturing
  • Made in UK cleanroom facilities, ISO 9001 & ISO 14001 accredited
  • No fillers, binders or additives — only active ingredients
  • Fully traceable from raw material to finished product
  • Non-GM, non-irradiated, 100% green energy manufacturing

Evidence

What the research shows

Our Health Reference Library is an ever-growing collection of peer-reviewed research and health guidance.

Research and routine
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From our Health Reference Library

Magnesium: glycinate vs citrate vs malate vs threonate?

Magnesium comes in several different chemical forms when sold as a supplement, and they are not interchangeable. They absorb at different rates and have different evidence bases for specific uses. Glycinate is well tolerated and absorbed via a different gut pathway than oxide, making it the typical default for general supplementation, sleep, and anxiety. Citrate is well absorbed but has a more pronounced laxative effect at higher doses. Malate fits energy metabolism contexts. L threonate is brain penetrant for cognitive applications. A 2022 systematic review in the journal Nutrition confirms that direct head to head trials comparing forms for specific clinical outcomes remain limited.

Edited by Henry Bond

Founder, Nutri Tailor

Read the full article

Frequently asked questions

What is Magnesium Citrate good for?

Magnesium Citrate supports relaxation, sleep quality, muscle recovery, and stress resilience. Magnesium is involved in over 300 enzymatic reactions.

When should I take Magnesium Citrate?

Take in the evening, 30-60 minutes before bed for sleep support.

What are signs I might need magnesium?

Common signs include muscle cramps, poor sleep, anxiety, fatigue, and tension headaches.

Can I take magnesium with other supplements?

Yes, magnesium pairs well with vitamin D, zinc, and B vitamins. Space from calcium by 2 hours for optimal absorption.

How long until I notice results?

Many people notice improved sleep and relaxation within 1-2 weeks. Full benefits develop over 4-8 weeks of consistent use.

What makes this form of magnesium different?

Different forms have different benefits. Bisglycinate is best for sleep and relaxation, citrate for constipation, and malate for energy.

Magnesium Citrate

Magnesium Citrate

$30.00