Metabolic Maintenance

Magnesium Citrate, 240 Capsules

Metabolic Maintenance Magnesium Citrate delivers elemental magnesium bound to citric acid, a form recognized for its favorable absorption profile compared to less soluble forms like magnesium oxide.

4.6 across 7 sources

May be a fit for

  • Adults seeking magnesium citrate for relaxed muscle comfort
  • Those supporting healthy bowel regularity with magnesium citrate
  • Individuals maintaining magnesium levels during high physical activity
$55.99

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CapsulesFormat
240 CapsulesPack size
The essentials

A closer look.

Metabolic Maintenance Magnesium Citrate delivers elemental magnesium bound to citric acid, a form recognized for its favorable absorption profile compared to less soluble forms like magnesium oxide. It supports muscle relaxation, healthy nerve function, energy metabolism, and normal sleep quality, making it a practical option for adults with higher magnesium demands or dietary gaps.

Why It's Worth Considering: Metabolic Maintenance formulates without unnecessary fillers or excipients, and their magnesium citrate provides a clinically relevant elemental dose in a straightforward capsule format.

The Apotheca perspective

50+ signals. A clearer standard.

Our curation and trust scoring bring together manufacturing, testing, research, practitioner insight and reviews from across the web.

93OUT OF 100
Manufacturing9292
Lab verification8383
Transparency6868

Our score is an editorial assessment, not a product certification or a guarantee of results.

Inside the formula

Product details

Who it may suit

May be a fit for

  • Adults seeking magnesium citrate for relaxed muscle comfort
  • Those supporting healthy bowel regularity with magnesium citrate
  • Individuals maintaining magnesium levels during high physical activity
  • Those seeking a well-absorbed citrate form for daily magnesium intake

Considerations

  • Severe kidney disease (impaired Mg excretion)
  • Taking antibiotics — separate by 2+ hours
  • Myasthenia gravis
  • Already taking high-dose magnesium from another source
Compatibility & interactions

Works Well With

Vitamin D3
Mg activates vitamin D
B-Complex
Mg is a cofactor in B vitamin metabolism
Ashwagandha
Both support stress response

Take Separately From

Calcium
High-dose calcium can reduce Mg absorption
What to expect over time
Day 1–7

Sleep Improvement

Faster sleep onset, deeper REM

Week 2–4

Cramp Relief

Reduced nighttime cramps and muscle tension

Week 4–8

Mood & Calm

Lower baseline anxiety, improved stress resilience

Week 8–12

Serum Optimization

Measurable RBC magnesium improvement

Based on clinical research on magnesium supplementation. Effects are cumulative with consistent daily use.

Compare the options

Compare Magnesium Forms

Which form is right for you?

FeatureGlycinateCitrateOxideL-ThreonateTaurate
BioavailabilityHigh (chelated)Moderate-HighLow (4-5%)ModerateModerate-High
Best ForSleep, anxiety, crampsConstipation, generalBudget (low absorption)Cognitive functionHeart health
GI ToleranceExcellentModeratePoor (laxative)GoodGood
Laxative EffectNoneMild–ModerateStrongNoneNone
EvidenceStrongStrongWeakEmergingModerate
Explore complementary products
From across the web

Real reviews. A wider perspective.

Customer reviews, social conversations and expert insights, with every source in view.

4.6/5Aggregate source rating
Marketplaces & brand websites
Amazon, iHerb and direct brand reviews
Social & community
Reddit, X, Instagram and TikTok
Video & creators
YouTube and creator perspectives

Coverage varies by product and brand.

179 product and brand ratings and mentions across 7 sources.

Explore the source sentiment summary

Overwhelmingly positive consensus on magnesium supplementation for sleep, energy, and general wellness, with strong advocacy across multiple communities.

This summary includes broader brand discussion. Individual experiences are not evidence of product effectiveness.

Good to know

A few useful answers.

Research & further reading

More category questions

What is the best form of magnesium to take?

Magnesium glycinate (bisglycinate chelate) is widely considered the best form for sleep, anxiety, and muscle cramps due to high bioavailability and zero laxative effect. Citrate is better for constipation. Threonate may be superior for cognitive function as it crosses the blood-brain barrier. Oxide has only 4-5% absorption and is primarily a laxative.

Does magnesium glycinate cause diarrhea?

No. Unlike magnesium citrate and oxide which draw water into the intestines (osmotic laxative effect), glycinate is chelated and absorbed through a different pathway that does not affect GI motility. It is the most GI-friendly magnesium form available.

When is the best time to take magnesium?

Take 1-2 hours before bed for sleep benefits. The glycine component promotes relaxation via GABA receptor activity. For general supplementation, any time works — glycinate does not require food for absorption.

How do I know if I am magnesium deficient?

Standard blood tests (serum magnesium) are unreliable — only 1% of body magnesium is in the blood. Signs include muscle cramps, poor sleep, anxiety, eye twitches, chocolate cravings, and headaches. Since 80%+ of adults are suboptimal, supplementation is generally recommended.

Can I take magnesium with other supplements?

Yes, but separate from zinc, calcium, and iron by 2+ hours (they compete for absorption). Magnesium pairs well with Vitamin D3, K2, and B6 taken together.

How much magnesium should I take daily?

The RDA is 310-420mg/day for adults. Most functional medicine practitioners recommend 400-600mg for therapeutic benefit. Start with the product's recommended dose and adjust based on response.

Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.

Metabolic Maintenance - Magnesium Citrate, 240 Capsules Metabolic Maintenance

Apotheca quality score

93/100

The overall score combines several sources of information. The individual dimensions below show where those signals are stronger or more limited; they are not a simple average of the overall score.

Manufacturing9292
Lab verification8383
Review consensus96.396.3
Practitioner signals45.045.0
Community signals6363
Transparency6868
See available brand signals
✓
Third-party lab tested (heavy metals, contaminants)Pass
✓
GMP-certified manufacturing by Metabolic MaintenanceCertified
✓
Premium ingredient sourcing with bioavailable formsHigh
✓
Clean FDA regulatory recordNo issues
✓
Positive consumer reviews and community feedbackGood
✓
Authorized distribution channel verifiedDirect

Our score is an editorial assessment, not a product certification or a guarantee of results.

How our scoring works ↗