Thorne

Calcium-Magnesium Malate, 240 Capsules

Size: 240 capsules

4.7 across 7 sources

May be a fit for

  • Adults seeking well-absorbed calcium and magnesium malate for bone matrix support
  • Practitioners protocols requiring chelated mineral forms with enhanced GI tolerability
  • Individuals supporting muscle relaxation and recovery with magnesium malate post-exercise
$43.99

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CapsulesFormat
240 CapsulesPack size
The essentials

A closer look.

Thorne's Calcium-Magnesium Malate delivers both calcium and magnesium in malate form, a chelated complex bound to malic acid that supports efficient mineral absorption. This formulation supports bone structure, muscle function, and energy metabolism for adults seeking well-tolerated mineral support.

Why It's Worth Considering: Thorne's use of the malate chelate form is a deliberate choice for tolerability and uptake, and the 240-capsule count suits consistent, long-term daily use without frequent reordering.

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.

98OUT OF 100
Manufacturing9898
Lab verification9191
Transparency7777

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

Thorne - Calcium-Magnesium Malate, 240 CapsulesThorne · 240 Capsules
Make it part of your day

Make it part of your routine.

Take 1 capsule three times daily or as recommended by a health-care practitioner.

Read the complete label
Inside the formula

Product details

Supplement facts & complete label

Serving Size:
One Capsule

Amount Per Serving:

Calcium (Calcium Malate) ... 100 mg
Magnesium (Magnesium Malate) ... 100 mg

Other Ingredients:
Hypromellose (derived from cellulose) capsule, Medium Chain Triglyceride Oil, Calcium Laurate.

ALLERGY WARNING
This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.

PREGNANCY
If pregnant, consult your health-care practitioner before using this product.

INTERACTIONS
There are no known adverse interactions or contraindications at publication date.

ADDITIONAL WARNINGS
Gas, bloating, or diarrhea can occur in some individuals taking magnesium supplements. This can occur at varying amounts depending on the individual and will resolve when the amount is reduced.

Label directions

Take 1 capsule three times daily or as recommended by a health-care practitioner.

Source: authorized supplier catalog · September 04, 2026. Formulas and labels can change. Check the packaging you receive.

Who it may suit

May be a fit for

  • Adults seeking well-absorbed calcium and magnesium malate for bone matrix support
  • Practitioners protocols requiring chelated mineral forms with enhanced GI tolerability
  • Individuals supporting muscle relaxation and recovery with magnesium malate post-exercise
  • Those maintaining magnesium levels while co-supplementing calcium in balanced clinical ratios

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
D enhances calcium absorption
Vitamin K2
K2 directs calcium to bones
B-Complex
Mg is a cofactor in B vitamin metabolism
Ashwagandha
Both support stress response

Take Separately From

Iron
Inhibits iron absorption. Space by 2 hours
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.

4.7/5Aggregate 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.

905 product and brand ratings and mentions across 7 sources.

Explore the source sentiment summary

Overwhelmingly positive consensus on magnesium supplementation for sleep, energy, and mood, with strong emphasis on bioavailability and proper form.

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.

Thorne - Calcium-Magnesium Malate, 240 Capsules Thorne

Apotheca quality score

98/100

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.

Manufacturing9898
Lab verification9191
Review consensus100100
Practitioner signals55.055.0
Community signals6464
Transparency7777
See available brand signals
✓
Third-party lab tested (heavy metals, contaminants)Pass
✓
GMP-certified manufacturing by ThorneCertified
✓
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 ↗