$22.99 $0.76 per serving
Product analysis
Mega-Mag 400 mg can help fill a magnesium gap and support normal muscle, energy and bone functions. Extra benefits are less certain when your intake is already adequate.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality20
Mineral forms are not clearly disclosed, making their quality harder to compare. Additional quality information is incomplete for several ingredients.
Ingredient Transparency63
All mineral amounts are listed, making serving sizes easier to compare. Forms are omitted for every listed ingredient, leaving the precise sources less clear.
Value For Money37
Magnesium and chloride offer moderate value, while sulfur and boron compare poorly. Some price information is inconsistent, so the combined value judgement remains uncertain.
Customer Satisfaction87
Customers give strongly positive ratings, supported by a large number of responses. They describe satisfaction and do not establish effectiveness or safety.
Product Focus65
The main role is meeting magnesium needs, with possible sleep and bowel-regularity benefits. The wider range of proposed uses is less consistent and does not establish an extra energy or fitness boost.
- Format
Liquid - Container
- 4 Fluid Ounce(s)
- Per serving
- $0.76
- Customer rating
- 4.6 · 9,268 ratings
Goals
Impact
Moderate effect
Magnesium · 400 mgPotassium · 5 mg
Magnesium at 400 mg supports normal energy metabolism and can help meet intake needs. The supplied evidence links fatigue benefits mainly to inadequate magnesium status, so the amount does not guarantee extra energy in a well-nourished person.
How this product is rated for Energy
Ingredient fit66
The formula serves several needs, so only part of it is focused on energy support. The assessed relevant amounts align closely with the supplied dose comparisons.
Goal fit
The formula serves several needs, so only part of it is focused on energy support.
Dose adequacy
The assessed relevant amounts align closely with the supplied dose comparisons.
Pathways0
The saved findings show nutritional support without meaningful coverage of the listed energy mechanisms. The saved findings show limited reach across the different aspects of energy support.
Depth
The saved findings show nutritional support without meaningful coverage of the listed energy mechanisms.
Breadth
The saved findings show limited reach across the different aspects of energy support.
Evidence88
Magnesium provides the strongest relevant evidence at the assessed amount, with benefits dependent on nutritional status or clinical context. The qualifying ingredients match preparations represented in the supplied evidence.
Evidence strength
Magnesium provides the strongest relevant evidence at the assessed amount, with benefits dependent on nutritional status or clinical context.
Studied preparation
The qualifying ingredients match preparations represented in the supplied evidence.
Formulation logic100
The assessed ingredients can contribute on their own or have their required partner present. No ingredient conflicts were identified in the saved assessment. All assessed ingredients met the saved minimum amount criterion.
Partner coverage
The assessed ingredients can contribute on their own or have their required partner present.
Conflicts
No ingredient conflicts were identified in the saved assessment.
Effective doses
All assessed ingredients met the saved minimum amount criterion.
Impact
High effect
Magnesium · 400 mg
Magnesium chloride supplies magnesium for normal nerve function and may contribute modestly to sleep quality in adults who sleep poorly. The serving declares 400 mg of magnesium. The supplied sleep studies do not establish a special advantage for chloride, and findings with other preparations cannot be assumed identical. This is a possible repeated-use contribution rather than evidence of an immediate sedative effect.
How this product is rated for Sleep Support
Ingredient fit63
Magnesium provides the sleep-related contribution within a broader mineral formula, at a substantial declared amount.
Goal fit
Magnesium supplies the sleep-related role, while the formula also serves broader mineral needs.
Dose adequacy
The declared magnesium amount reaches the saved amount reference; this does not establish an immediate sleep effect.
Pathways60
The contribution is concentrated in neural calming.
Depth
Neural calming is the best-supported route.
Breadth
Support is concentrated in calming rather than spread across multiple sleep-related routes.
Evidence98
Magnesium has relevant human evidence, though sleep benefits are modest or uncertain and do not establish superiority of chloride.
Evidence strength
Magnesium has relevant human sleep evidence, with uncertain or small benefits in the supplied populations.
Studied preparation
The saved preparation check is satisfied, but this does not establish identical sleep effects across magnesium salts.
Formulation logic100
The counted contributors have no missing required partner or matched conflict and meet the saved amount threshold.
Partner coverage
The contributing ingredients do not require an additional missing partner for their saved roles.
Conflicts
No matched ingredient conflict was found in the supplied facts.
Effective doses
All counted contributors meet the saved amount threshold; this is not proof of a clinically effective dose.
Impact
High effect
Magnesium · 400 mgBoron · 1.5 mg
Magnesium can help fill a dietary gap, contributing across energy-related processes and mineral metabolism. Its 400 mg serving reaches full saved amount coverage, while boron receives a smaller saved contribution despite the supplied context not establishing routine broad-health benefit. Chloride and potassium are nutritional companions without separate counted contributions. The chloride form does not establish superior effects, and adequate intake does not imply added benefit from more magnesium.
How this product is rated for Everyday Health
Ingredient fit68
Magnesium and boron receive saved contributions, with full amount coverage for magnesium and partial coverage for boron.
Goal fit
Other actives and links to other goals reduce focus on the saved contributions.
Dose adequacy
Magnesium reaches full amount coverage; boron receives partial coverage without establishing a routine general-health dose.
Pathways80
Magnesium dominates energy-related coverage, with mineral-metabolism contributions from magnesium and boron.
Depth
Energy-related nutrient processes reach full coverage through magnesium.
Breadth
Energy-related processes and mineral metabolism both meet the coverage threshold.
Evidence86
Magnesium leads the evidence finding, with conditional nutritional usefulness.
Evidence strength
Magnesium supplies the leading evidence contribution without establishing outcomes beyond adequate nutrition.
Studied preparation
The counted declarations receive full preparation recognition without a magnesium-chloride advantage.
Formulation logic100
Partner checks are satisfied and no configured conflict was found.
Partner coverage
No counted ingredient lacks a required partner.
Conflicts
No configured ingredient conflict was matched.
Effective doses
Both counted ingredients pass the minimum amount threshold.
Impact
High effect
Magnesium · 400 mg
Magnesium has a limited connection to blood-pressure support, with small and inconsistent effects in the supplied evidence. Potassium may also support blood pressure depending on baseline intake and blood pressure, but this serving does not establish the studied daily regimen. The magnesium form does not establish superior cardiovascular effects, and one serving does not establish repeated use.
How this product is rated for Heart Health
Ingredient fit63
Magnesium supplies a relevant declared amount for limited blood-pressure support.
Goal fit
Relevant ingredients sit within a broader formula that also serves other purposes.
Dose adequacy
The relevant declared amounts receive full amount recognition; this does not establish trial-equivalent daily use or greater clinical benefit.
Pathways57
The main represented route is electrolyte and vascular-tone balance, with limited breadth beyond it.
Depth
The strongest represented route is electrolyte and vascular-tone balance; its biological connection does not itself establish fewer cardiovascular events.
Breadth
Electrolyte and vascular-tone balance is substantially represented; other routes have limited or absent coverage.
Evidence89
The evidence concerns specific vascular markers and selected populations, with limited inference about routine prevention.
Evidence strength
Magnesium supplies the leading evidence contribution, restricted to its relevant population and measured outcome.
Studied preparation
The contributing preparations are accepted as studied in the supplied findings, without establishing that this product reproduces a complete trial regimen.
Formulation logic100
The contributing ingredients have no missing required partners or configured conflicts.
Partner coverage
The contributing ingredients do not have missing required partners in the supplied findings.
Conflicts
No configured ingredient conflict was identified in the supplied facts.
Effective doses
All contributing ingredients meet the saved minimum amount criterion; this does not make that criterion a proven clinical dose.
Impact
High effect
Potassium · 5 mgMagnesium · 400 mg
Magnesium chloride provides a limited connection to blood-vessel function, with mixed findings for arterial stiffness and blood pressure. Low-magnesium or elevated-blood-pressure settings provide a more plausible context than routine supplementation in adequately nourished adults. The declared 400 mg per serving receives the full saved amount contribution without establishing cardiovascular-event prevention. Potassium is present at 5 mg per serving, too little for a contribution in the supplied comparison.
How this product is rated for Cardiovascular Support
Ingredient fit63
Magnesium provides the usable contribution within a wider mineral formula.
Goal fit
Other actives make the formula broader than the ingredients counted toward this goal.
Dose adequacy
Magnesium meets the saved amount reference; potassium's small declared amount is not counted.
Pathways54
The saved findings concentrate on blood-vessel tone and sodium balance, with no broader pathway coverage established.
Depth
The strongest represented aspect is blood-vessel tone and sodium balance.
Breadth
Only blood-vessel tone and sodium balance reaches the saved coverage threshold.
Evidence79
Magnesium supplies the strongest relevant contribution; the supplied findings remain specific to populations and outcomes.
Evidence strength
Magnesium supplies the strongest relevant evidence at the declared amount.
Studied preparation
The counted ingredients were treated as studied preparations, without establishing identical outcomes across forms.
Formulation logic100
The counted ingredients meet the saved amount threshold, with no missing required partner or configured conflict.
Partner coverage
The counted ingredients can contribute independently or have their required partner.
Conflicts
No configured ingredient conflict was identified.
Effective doses
The ingredients counted toward the goal meet the saved amount threshold.
Impact
High effect
Magnesium · 400 mg
Magnesium may support calming when magnesium status is low or in selected clinical settings; broad lasting everyday stress relief remains uncertain.
How this product is rated for Stress Relief
Ingredient fit63
Relevant ingredients sit within a broader formula, so only part of the product is specifically connected to stress relief. The included amounts fully meet the saved amount references; this does not establish a proven effective dose.
Goal fit
Relevant ingredients sit within a broader formula, so only part of the product is specifically connected to stress relief.
Dose adequacy
The included amounts fully meet the saved amount references; this does not establish a proven effective dose.
Pathways50
The main recorded connection is neural calming. Coverage is concentrated in a limited set of stress-related processes, leaving other aspects without substantial support.
Depth
The strongest recorded connection concerns neural calming, with partial coverage from the included ingredients.
Breadth
Coverage is concentrated in a limited set of stress-related processes, leaving other aspects without substantial support.
Evidence76
Magnesium provides the strongest recorded evidence. The qualifying preparations match the supplied evidence.
Evidence strength
Magnesium provides the strongest recorded ingredient evidence at a qualifying amount; its population and outcome limitations still apply.
Studied preparation
The qualifying preparations match those recognized in the supplied evidence; this does not show that the finished product was tested.
Formulation logic100
The ingredients work independently or have the required partner in the supplied findings. No listed formulation conflict was matched in the supplied findings. This is limited to the specified checks.
Partner coverage
The ingredients work independently or have the required partner in the supplied findings.
Conflicts
No listed formulation conflict was matched in the supplied findings. This is limited to the specified checks.
Effective doses
All ingredients included in this finding meet its minimum amount threshold; the threshold is not proof of clinical effectiveness.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Magnesium | 400 mg | |
Chloride | 1100 mg | |
Sodium | 5 mg | |
Potassium | 5 mg | |
Sulfate | 70 mg | |
Boron | 1.5 mg |
Chloride · 1100 mg OverallScore82
Each serving provides 1100 mg of chloride. The named source is magnesium chloride, and the whole-product serving costs about $0.78.
How this ingredient is rated
Active Ingredient Quality & Bioavailability80
The recorded chloride source is magnesium chloride; the source classification does not measure absorption.
Chloride source quality
The recorded chloride source is magnesium chloride; the source classification does not measure absorption.
Dose, Safety & Label Transparency100
The serving provides 1100 mg of chloride from magnesium chloride.
Chloride amount per serving
The recorded serving contains 1100 mg of chloride.
Amount and source disclosure
The recorded chloride amount and its source, magnesium chloride, are both identified.
Value50
The whole-product serving costs about $0.78; this is not a price for chloride alone.
Price per serving
The recorded price is about $0.78 per whole-product serving, not for chloride alone.
Sulfur · 70 mg OverallScore36
Each serving lists 70 mg of sulfate. That figure is a compound amount and does not establish the amount of elemental sulfur.
How this ingredient is rated
Active Ingredient Quality & Bioavailability40
The saved details do not identify a specific sulfur source.
Sulfur Source & Chemical Form
The saved details do not identify a specific sulfur source.
Dose, Safety & Label Transparency40
The serving lists 70 mg of sulfate, while the amount of elemental sulfur remains unknown.
Elemental Sulfur Potency
The elemental sulfur amount is unknown; the listed sulfate amount is not an elemental sulfur amount.
Quantitative Complex Disclosure
The saved details list 70 mg of sulfate per serving, but do not give an elemental sulfur amount.
Value20
The whole-product serving costs about $0.78.
Price per Serving vs. Collection Median
The whole-product serving costs about $0.78.
Magnesium · 400 mg OverallScore70
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- [Comparative study of the urinary excretion of boron, calcium, magnesium and phosphorus in postmenopausal women with and without osteoporosis].
- Effect of dietary boron on mineral, estrogen, and testosterone metabolism in postmenopausal women.
- The relationship between boron and magnesium status and bone mineral density in the human: a review.
- Effects of boron supplementation on bone mineral density and dietary, blood, and urinary calcium, phosphorus, magnesium, and boron in female athletes.
- Metabolic responses of postmenopausal women to supplemental dietary boron and aluminum during usual and low magnesium intake: boron, calcium, and magnesium absorption and retention and blood mineral concentrations
- Association between Serum Magnesium and Fractures: A Systematic Review and Meta-Analysis of Observational Studies.
- Bioabsorbable Magnesium-Based Materials Potential and Safety in Bone Surgery: A Systematic Review.
- Vascularized bone grafting fixed by biodegradable magnesium screw for treating osteonecrosis of the femoral head.
- An update on magnesium and bone health.
- Sex-specific differences in the association of magnesium intake with femoral neck bone mineral density among older adults.
- Effect of potassium citrate on bone density, microarchitecture, and fracture risk in healthy older adults without osteoporosis: a randomized controlled trial.
- Long-term persistence of the urine calcium-lowering effect of potassium bicarbonate in postmenopausal women.
- Partial neutralization of the acidogenic Western diet with potassium citrate increases bone mass in postmenopausal women with osteopenia.
- Potassium citrate supplementation results in sustained improvement in calcium balance in older men and women.
- Effects of potassium chloride and potassium bicarbonate on endothelial function, cardiovascular risk factors, and bone turnover in mild hypertensives.
- Circulating and dietary magnesium and risk of cardiovascular disease: a systematic review and meta-analysis of prospective studies.
- Magnesium and the risk of cardiovascular events: a meta-analysis of prospective cohort studies.
- Quantitative Association Between Serum/Dietary Magnesium and Cardiovascular Disease/Coronary Heart Disease Risk: A Dose-Response Meta-analysis of Prospective Cohort Studies.
- Comparative Efficacy of Nutraceuticals on Endothelial Function: A Systematic Review and Network Meta-Analysis.
- Serum magnesium, mortality, and cardiovascular disease in chronic kidney disease and end-stage renal disease patients: a systematic review and meta-analysis.