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Calcium Magnesium & Zinc

Sundown
4.7
(25011 ratings)
Calcium 1000 mg
Magnesium 400 mg
Zinc 25 mg
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Score94

This supplement contains very high doses of calcium (2000mg), magnesium (800mg), and zinc (50mg), with magnesium and zinc levels exceeding safe supplemental intake recommendations, raising concerns about its suitability for regular use.

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Quantity:100 Tablet(s)(33 servings)
Goals:
Energy
General Health
Cardiovascular Support
Heart Health
Stress Relief
Bone Health
Metabolism Boost
Mood Support

Score 94

This supplement contains very high doses of calcium (2000mg), magnesium (800mg), and zinc (50mg), with magnesium and zinc levels exceeding safe supplemental intake recommendations, raising concerns about its suitability for regular use.

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$5.35($0.16 per serving)
iHerb
$ 5.35
Amazon
$ 9.99
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Analysis

Sundown's Calcium Magnesium & Zinc supplement aims to deliver these three vital minerals in a single tablet. It includes calcium from carbonate and gluconate forms, magnesium from gluconate and oxide, and zinc from citrate and oxide. These minerals are important for bone structure, muscle function, and immune support among other roles.

A significant concern with this formulation is the high concentration of each mineral per serving. With 2000mg of calcium, 800mg of magnesium, and 50mg of zinc, the dosages generally exceed typical daily recommendations and, for magnesium and zinc, surpass the established upper tolerable intake levels for supplemental use. This could lead to adverse effects, especially with consistent consumption.

While some of the forms like calcium gluconate and zinc citrate offer better absorption, the overall high cumulative amounts raise questions about the product's practicality and safety for general supplementation. Users seeking a balanced mineral intake may find these dosages difficult to manage without risk of overconsumption.

Pros

  • Combines three essential minerals (calcium, magnesium, zinc) in one product.
  • Includes some forms known for better absorption, such as calcium gluconate and zinc citrate.
  • Offers a substantial amount of each mineral, potentially useful for severe deficiencies under medical supervision.
  • Price per serving is relatively low.

Cons

  • Magnesium (800mg) and Zinc (50mg) dosages are well above the generally recognized safe upper intake levels for supplemental forms.
  • The very high Calcium dosage (2000mg) is also significant and could approach the overall tolerable upper intake level when combined with dietary sources.
  • Excessive magnesium can cause digestive issues like diarrhea.
  • High zinc intake can interfere with copper absorption and lead to other adverse effects.
  • The use of magnesium oxide and zinc oxide may offer lower bioavailability compared to other forms.

Warnings

  • Consult a healthcare professional before taking this product due to the high dosages of magnesium and zinc.
  • Excessive intake of zinc can lead to copper deficiency and gastrointestinal upset.
  • High doses of magnesium can cause digestive disturbances such as diarrhea and cramping.
  • Individuals with kidney disease or other medical conditions should avoid high mineral supplementation without strict medical guidance.

Nutrient quality

85 Highest impact

Using multiple mineral forms like citrate and gluconate improves the overall absorption profile. The lack of Vitamin D3 is the primary limitation for achieving optimal bone health benefits.

Ingredient transparency

98 Highest impact

The label clearly specifies both the nutrient weights and the multiple chemical forms used for each mineral. This level of detail provides consumers with clear information regarding the mineral sources.

Customer satisfaction

93 Highest impact

Extremely high ratings and a massive review volume reflect a high degree of consumer trust. Feedback suggests the mineral blend is effective and well-tolerated by most users.

Value for money

99 Highest impact

The cost per serving is exceptionally low for such a comprehensive mineral blend. It offers outstanding value for individuals seeking broad mineral repletion.

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Goals

Impact
High effect
A Goal FitB- Strength of SupportB CoverageB Formula Quality

Features a combination of calcium carbonate, magnesium oxide, and zinc citrate. These foundational minerals support skeletal integrity and immune defense pathways.

The inclusion of multiple mineral forms aims to provide a broad nutritional base. However, the presence of magnesium oxide and the high calcium-to-magnesium ratio may limit overall magnesium uptake.

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Impact
High effect
A Goal FitA- Strength of SupportC CoverageB- Formula Quality

This mineral supplement supports physical energy by providing magnesium, which is essential for ATP synthesis. It is formulated to maintain foundational health through a blend of electrolytes and cofactors.

Key ingredients consist of magnesium gluconate, magnesium oxide, and calcium carbonate.

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Impact
High effect
B+ Goal FitB+ Strength of SupportC CoverageB- Formula Quality

Magnesium and zinc provide essential support for cardiovascular health by regulating heart rhythm and contributing to healthy vascular tone. These minerals are foundational for maintaining optimal circulatory function and antioxidant status.

A therapeutic 400 mg dose of magnesium is well-aligned with goals for managing blood pressure and cardiac stability. However, the 1000 mg dose of calcium in this blend may compete for absorption, potentially limiting the effectiveness for heart muscle relaxation.

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Impact
High effect
A Goal FitB Strength of SupportD+ CoverageB Formula Quality

This formula provides Magnesium, Calcium, and Zinc to support electrolyte balance and cardiovascular maintenance. Magnesium and Calcium are crucial for heart muscle contraction and maintaining healthy blood pressure.

While the 400mg dose of magnesium is therapeutic, the high calcium content may compete for absorption and reduce its effectiveness. This product appears well aligned for general mineral support with secondary heart benefits.

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Impact
High effect
B+ Goal FitB Strength of SupportC CoverageC Formula Quality

Magnesium Oxide and Gluconate are combined in this supplement to deliver 400 mg of elemental magnesium for relaxation support. It also provides a significant dose of Zinc, which is necessary for healthy hormonal balance and resilience.

While the dosage of key minerals is high, the 2.5:1 ratio of calcium to magnesium may hinder the absorption of the calming mineral content. This formula is a cost-effective choice for general mineral health but lacks the specificity of a dedicated stress relief aid.

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Impact
High effect
C+ Goal FitB+ Strength of SupportC+ CoverageC Formula Quality

Magnesium Gluconate and Zinc inclusion in this multi-mineral formula supports foundational relaxation and enzymatic cofactors for rest. Magnesium reaches the therapeutic threshold of 400mg, which is backed by evidence for improving sleep quality.

Presence of high-dose calcium may inhibit the uptake of magnesium, potentially reducing the efficacy of the relaxation pathway. While affordable, the formula relies on basic mineral forms that provide mixed bioavailability compared to targeted sleep aids.

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Ingredients

IngredientAmount per serving
Calcium (Calcium Carbonate, Calcium Gluconate)
1000 mg
Magnesium (Magnesium Gluconate, Magnesium Oxide)
400 mg
Zinc (Zinc Citrate, Zinc Oxide)
25 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free Vegetarian
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C+ Active Ingredient Quality & BioavailabilityD Dose, Safety & Label TransparencyA+ Value
This mineral blend includes calcium, magnesium, and zinc for comprehensive skeletal and immune support. It is an extremely economical option for those seeking broad mineral coverage.
D Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyD+ Value
This multi-mineral supplement provides 400mg of magnesium along with calcium and zinc for comprehensive health support. While affordable, the high calcium content and use of basic mineral forms may reduce the magnesium's effectiveness.
D+ Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyB+ Value
This formula provides a significant amount of zinc, though the combination of forms leads to inconsistent absorption. The lack of copper in a high-dose supplement is a notable concern for long-term mineral balance.
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