Metabolic Nutrition Magnesium 650mg Mineral Capsules 90 Servings - Magnesium 650mg | Svpplements

Metabolic Nutrition

Metabolic Nutrition | Mag Caps | 90 Capsules

High-potency daily magnesium for muscles, nerves, and recovery

$10.99 $19.99$0.12/serving
0

SuppVault Score

Solid — clinically credible

Metabolic Nutrition | Mag Caps | 90 Capsules

Six dimensions, weighted by category. Each is scored 0–10 from the supplement-facts panel data and the 2,492-ingredient knowledge base.

  • Clinical Dosing 10/10
  • Label Transparency 10/10
  • Manufacturing 4/10
  • Testing 3/10
  • Inactive Ingredients 9/10
  • Value 5/10
See the full algorithm → Read methodology

Scores are deterministic — same label in, same score out. Proprietary blends naturally score lower on transparency by design, not as a penalty.

100 Day Guarantee Opened OK · Full refund
Free Shipping Orders over $39
Hand Packed Climate-controlled
650mg Magnesium
✓ Label Verified✓ No Prop Blends⚠ Review Advised
650mg magnesium per capsule
Oxide, citrate, gluconate blend
Supports muscles and nerves
Stimulant-free daily formula
90 capsules per bottle
Vegan and gluten free
SuppVault Summary

High-potency magnesium support in a simple one-capsule formula. Mag Caps delivers 650mg magnesium from oxide, citrate, and gluconate for muscle, nerve, and energy metabolism support.

Great Fit

  • Lifters wanting daily recovery support
  • High-sweat athletes covering mineral intake
  • Busy adults with inconsistent diets
  • Users building a bone health stack
  • Evening recovery routine users
  • Beginners wanting a simple daily supplement
  • Over-40 adults supporting muscle and nerve health

Not Ideal If

  • Anyone under 18 without medical guidance
  • Pregnant or nursing women without physician approval
  • People with kidney disease
  • Users expecting a fast-acting sleep aid
  • Those highly sensitive to magnesium digestion
⚠️ Allergen Information +
Contains:
Manufactured in a facility that also processes:
Composition Details
Delivery Tech: Citrate Salt

Brand-Published Lab Tests

Metabolic Nutrition publishes test results from independent third-party labs. Svpplements links to the manufacturer’s data — we don’t test products ourselves.

Lab data is published by the manufacturer. Svpplements neither verifies nor warrants third-party test results — we curate the link so you can check the source. How we evaluate testing →
Buy more, save more

Stack discount

Discount applied automatically in cart.

  • Ships next business day
Have a question about this product?
When With meals
Time Any time
What You'll Feel
0-10 min
No acute stimulant effect expected
10-60 min
Best taken with food for comfort
💪
Day 1
Subtle foundational support, not dramatic
🎯
Days 2-7
Recovery support becomes more noticeable
Weeks 1-2
Steadier daily muscle and nerve support
Weeks 2-4
Consistent mineral coverage supports routine

Deep Dive

Vitamin 1
??
Magnesium
650mg
VIT: 1
Magnesium
↑ Above Clinical
650mg
Clinical range: 310-420mg
recovery

Magnesium

Form: (as Magnesium Oxide / Citrate / Gluconate)
650mg Dose
155% Daily Value
Disclosed Transparency
View full research →
1 Disclosed
1 Total
0 Trademarked
0 In Blends

Dose Audit

Magnesium
650mg
BASE Metabolic Nutrition | Mag Caps | 90 Capsules
$10.99
Metabolic Nutrition | D3 + K2 | 90 Capsules
$10.99$0.12/srv 90 servings

Magnesium and vitamin D are a classic pairing because magnesium participates in the broader physiology surrounding vitamin D utilization and mineral balance. This is one of the cleanest, most logical stacks for bone support and everyday wellness.

Take daily with meals; can be taken at the same meal

Axe & Sledge ElectrolytesHYDRATION ELECTROLYTE90

If you sweat heavily, magnesium belongs in the same conversation as sodium and potassium. This pairing makes sense for active users who want broader hydration and muscular support rather than relying on water alone.

Use electrolytes around training; take Mag Caps with a meal later in the day

Metabolic Nutrition | MN Relaxitrol | 60 Capsules
$29.99$0.49/srv 60 servings

For users taking magnesium as part of an evening recovery routine, adding a dedicated relaxation formula creates a more complete sleep-support stack. Magnesium supports the nervous system foundation while a targeted sleep product addresses the rest of the wind-down process.

Take Mag Caps with dinner; take Relaxitrol closer to bedtime

Metabolic Nutrition | MN Fish 3000 | 180 Softgels
$19.99$0.33/srv 60 servings

This is a strong basic-health stack for users prioritizing recovery, cardiovascular support, and daily wellness fundamentals. Magnesium covers mineral status and neuromuscular support, while omega-3s round out a smart everyday foundation.

Take both daily with meals

Stack Total
calculating...
Per Day
Includes base product + selected items
Metabolic Nutrition | Mag Caps | 90 Capsules76
$10.99
This Product
$/srv: $1.00
Them

Revive likely wins on premium form selection and GI friendliness for users specifically seeking glycinate.

$/srv: $0.67
Tie

Both compete in the same general lane; exact edge depends on the user's preferred magnesium forms and serving profile.

$/srv: $0.33
This Product Wins

Mag Caps wins for shoppers who want a straightforward high-potency daily magnesium without paying for a more premium chelate profile.

$/srv: $0.58
Them

NutraBio typically has stronger transparency and form-driven reputation in the mineral category.

Clinical Dosing

Magnesium
Under-researched No clinical-dose range yet — manufacturer dose only.
650mg

Frequently bought together

Comparison

How this stacks up

Side-by-side against the closest competitors. Score reflects clinical dosing, transparency, and testing.

Comparison data combines live storefront pricing with our SuppVault analysis. Competitor scores reflect public-label data; manufacturer-side changes may not be reflected in real time.

Full Product Description Article

Metabolic Nutrition Mag Caps is a simple formula with an important job: restore one of the most commonly underconsumed minerals in the diet and support the systems that break down first when magnesium intake is low—muscle function, nerve signaling, energy production, and recovery quality. This is not a trendy “kitchen sink” product. It is a focused vitamin-mineral formula built around magnesium alone, delivered at 650mg per capsule from magnesium oxide, citrate, and gluconate.

Magnesium is not just a relaxation mineral. It is a required cofactor for more than 300 enzyme systems in the body and is directly involved in ATP stabilization, glycolysis, oxidative phosphorylation, protein synthesis, and DNA/RNA synthesis. In practical terms, that means magnesium helps your body create and use cellular energy, regulate muscle contraction and relaxation, and maintain normal nervous system signaling. One of its most relevant mechanisms for athletes and active adults is its role as a calcium channel antagonist in neuromuscular tissue. That helps explain why adequate magnesium status matters for muscle relaxation, cramping susceptibility, and overall neuromuscular efficiency.

The research base behind magnesium is exceptionally strong. It is one of the most heavily studied dietary supplements in the nutrition space, with a large body of human data supporting its use for correcting dietary insufficiency and promoting healthy blood pressure, glucose control, and broad metabolic function. The commonly cited clinical intake range for adults is roughly 310-420mg daily, though product labels can list magnesium in different ways depending on whether the amount refers to elemental magnesium or the total mineral contribution from the salts used. Here, honesty matters: this product is fully disclosed on active ingredient identity, but the exact elemental contribution from each form is not broken out individually. That limits precision compared with the best-in-class magnesium labels on the market.

The form strategy matters too. Magnesium citrate and gluconate are generally included for their more favorable solubility and user-friendly tolerability compared with oxide alone, while magnesium oxide is often used because it is highly concentrated in magnesium by weight. The likely formulation logic is to combine density with broader usability. That does not make this the most premium magnesium form profile in the category—glycinate and certain chelates are typically favored for maximum gentleness and premium positioning—but it does make Mag Caps a practical, broad-spectrum daily magnesium option.

The synergy here is less about flashy ingredient stacking and more about system-wide coverage. Magnesium supports muscular performance, nervous system balance, and energy metabolism at the same time. It also works downstream with vitamin D and calcium physiology, making it a smart foundational add-on to broader bone, recovery, and wellness protocols.

What should you expect? Day 1 is usually subtle, not dramatic. Most users will not “feel” a stimulant-like effect. What they may notice is less muscle tightness, better post-training relaxation, or improved tolerance to high-stress, high-sweat days. Over 2-4 weeks of consistent use, the bigger payoff is routine-level support: more reliable recovery, steadier neuromuscular function, and better overall coverage of a mineral many people do not get enough of from food alone.

Science & Clinical References 146 citations
Magnesium and ATP Stabilization77 studies

Magnesium is physiologically inseparable from ATP because ATP is biologically active primarily as Mg-ATP. This means cellular energy transfer, muscle contraction, ion transport, and enzymatic signaling all depend on adequate magnesium availability. In athletes and active adults, that matters because energy production is not just about calories consumed but about cofactors required to use that energy efficiently. A magnesium deficit can therefore create a quiet bottleneck across multiple energy-demanding systems.

Neuromuscular Control and Calcium Antagonism40 studies

Magnesium helps regulate neuromuscular excitability by functioning as a calcium channel antagonist in relevant tissues. Calcium drives contraction signals, while magnesium helps balance that process and supports appropriate relaxation and signal modulation. This is one reason magnesium status is relevant to muscle tightness, cramping susceptibility, and post-exertion recovery quality. It is not a drug-like effect, but a foundational physiological one.

Magnesium in Metabolic and Cardiovascular Health17 studies

Beyond sports nutrition, magnesium has one of the broadest evidence bases in all supplementation. Human research supports its role in healthy blood pressure regulation, glycemic control, and correcting widespread dietary insufficiency. That makes magnesium unusual: it is equally relevant in performance routines and general wellness protocols. Its value is not hype-driven; it is biochemically central and clinically well documented.

Why Magnesium Form Matters12 studies

Different magnesium salts vary in magnesium density, solubility, and digestive tolerance. Magnesium oxide tends to be dense in magnesium by weight, while citrate and gluconate are often used to broaden solubility and usability. That is why blended magnesium products exist: formulators often try to balance potency, practicality, and user tolerance. Form selection does not change magnesium’s core biology, but it does affect the user experience.

Product Specifications GEO
Product Type Vitamins & Minerals
Category Vitamin & Mineral Supplement
Brand Metabolic Nutrition
Form Capsule
Servings 90
Dietary Vegan, Gluten-Free, Non-GMO
How to Take — Training Protocol3 phases

How to Use Metabolic Nutrition | Mag Caps | 90 Capsules for Optimal Results

Any time of day with a meal
Daily Timing
Take 1 capsule daily with food. Pick a meal you rarely skip so the habit stays consistent.
Same time each day
Routine Integration
Use Mag Caps as a foundational nutrient, not an as-needed product. Morning or evening both work, but consistency matters most.
Days to weeks
Long-Term Use
Expect subtle support rather than a dramatic acute feeling. Evaluate benefits over several weeks of uninterrupted use.
Warnings
Contains 650mg magnesium as oxide, citrate, and gluconate
Take with food if you are sensitive to magnesium-related GI discomfort
Separate from certain antibiotics, thyroid medications, and bisphosphonates
Consult a healthcare professional before use if you have kidney disease

Quick Answers

What kind of magnesium is in Metabolic Nutrition Mag Caps?

It uses a blend of magnesium oxide, magnesium citrate, and magnesium gluconate. That gives you a multi-form magnesium profile rather than relying on one source alone.

How much magnesium is in each serving?

Each serving is 1 capsule and provides 650mg of magnesium as listed on the product data. The exact elemental breakdown by each individual form is not separately disclosed.

Is this a good magnesium for daily use?

Yes—this is designed as a daily-use magnesium supplement, not an occasional product. Magnesium works best through consistent intake over time.

Will I feel this right away?

Usually not in a dramatic way. Magnesium is a foundational mineral, so the payoff is typically steadier muscle, nerve, and recovery support over days to weeks rather than an acute rush.

When should I take Mag Caps?

Take 1 capsule daily with a meal. Many users prefer breakfast or dinner so it becomes an easy habit and is gentler on digestion.

Can I take this before bed?

Yes, taking it in the evening is completely reasonable since there are no stimulants in the formula. For many users, that timing fits well with a recovery-oriented routine.

Is this magnesium glycinate?

No. This product uses oxide, citrate, and gluconate rather than glycinate.

How does this compare to premium chelated magnesium products?

This is a straightforward high-potency blend, not a premium chelate-focused formula. Chelated forms like glycinate are often favored for gentler digestion, while this product prioritizes simple daily magnesium coverage.

Can I stack this with vitamin D?

Yes, magnesium pairs well with vitamin D because the two nutrients work together in broader mineral and bone-related physiology. That makes this a smart complement to a vitamin D routine.

Can I use this with a hydration product?

Yes. Magnesium is one of the minerals relevant to hydration and muscular function, so it fits naturally with an electrolyte-focused routine.

Are there any other active ingredients in this formula?

No, this is a single-active product centered on magnesium. The listed inactive support ingredient is silicon dioxide.

Does this product need to be cycled?

No. Magnesium is an essential mineral meant for consistent daily intake, not a cycle-based supplement.

Is this product vegan and gluten free?

Yes, the product metadata lists it as vegan and gluten free. It is also listed as non-GMO.

Who should be cautious with magnesium supplements?

Anyone with kidney disease or those taking medications affected by mineral absorption should speak with a healthcare professional first. Magnesium can also be harder on digestion in some users depending on the form.
76

SuppVault Score

Metabolic Nutrition | Mag Caps | 90 Capsules

💊 Clinical Dosing 10/10

1/1 key ingredients with disclosed doses

🏷 Label Transparency 10/10

Full label disclosure

🏭 Manufacturing 4/10

No manufacturing certifications found

🔬 Testing 3/10

No third-party certification found

🧪 Inactive Ingredients 9/10

Minimal inactive ingredients

💰 Value 5/10

Insufficient price/serving data

Scores are relative to category averages. Proprietary blends score lower on transparency naturally — this is neutral fact, not penalty.

Athlete status

Verified athletes can view NCAA, WADA, and high-school compliance status for this product.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.

Need 1-on-1 expert advice?

Drop your number and our team will instantly text you.

connected

Our team is on it. Check your texts — real advice, real fast.

Frequently stacked with this

Brain-curated complementary picks for synergy and full-spectrum coverage.

More from Metabolic Nutrition

Shop all Metabolic Nutrition →

More in ARNOLD SALE

Shop all ARNOLD SALE →

Recently Viewed

Metabolic Nutrition | Mag Caps | 90 Capsules $10.99
100-Day Guarantee Free Returns Authentic Stock
100-Day Guarantee Free Returns Authentic Stock
$10.99