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Dolomite Powder

KAL

4.6
(540 ratings)
Calcium 1100 mg
Magnesium 630 mg
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Score 55.0

A very affordable natural dolomite powder with a decent Ca:Mg ratio, but critically lacks Vitamin D and uses less bioavailable carbonate forms for both minerals, hindering its effectiveness for bone health.

Quantity: 16 Ounce(s)Servings size: 5 Gram(s) (90 servings)
Selected goals:
Other goals:
Bone Health
Joint Health
Heart Health
Fitness
Stress Relief

Score 55.0

A very affordable natural dolomite powder with a decent Ca:Mg ratio, but critically lacks Vitamin D and uses less bioavailable carbonate forms for both minerals, hindering its effectiveness for bone health.

Analysis

KAL Dolomite Powder presents itself as a straightforward, economical option for calcium and magnesium supplementation in a versatile powder format. Sourced naturally as dolomite, it provides calcium and magnesium in carbonate forms and maintains a reasonable calcium to magnesium ratio of approximately 1.7:1. The powder form allows for flexible dosing and mixing into beverages. However, the reliance solely on carbonate forms for both minerals is a significant drawback, as these are among the least bioavailable and require adequate stomach acid for absorption, potentially causing digestive discomfort for some. More critically, the complete absence of Vitamin D is a major impediment to the product's efficacy, especially for bone health goals. Without Vitamin D, the body struggles to absorb and utilize calcium effectively, severely limiting the benefits of the elemental calcium provided. While cheap, its limitations mean it's not a comprehensive or highly effective solution for mineral repletion.

Pros
  • Very affordable price per serving, making it a budget-friendly option.
  • Powder form offers versatility in dosing and consumption.
  • Provides a reasonable calcium to magnesium ratio (~1.7:1).
Cons
  • Contains no Vitamin D, which is essential for calcium absorption and utilization for bone health.
  • Both calcium and magnesium are in carbonate forms, which are among the least bioavailable and require sufficient stomach acid for absorption.
  • Dolomite sources can sometimes raise concerns about heavy metal contamination, though reputable brands typically test for this.
Warnings
  • Consumers must supplement with Vitamin D separately to achieve any meaningful calcium absorption for bone health.
  • Individuals with low stomach acid or digestive sensitivities may experience poor absorption and/or digestive upset from the carbonate forms.
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$13.69($0.15 per serving)
Vitacost
$ 13.69
iHerb
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Amazon
$ 14.60
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Effectiveness for goals

Dosage, timing & forms

Safety & interactions

Ingredients

IngredientAmount per serving
Calcium (Calcium Carbonate) 1100 mg
Magnesium (Magnesium Carbonate) 630 mg
Adults 18–50 Vegetarian
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Categories

Calcium is provided as calcium carbonate, which is poorly absorbed without sufficient stomach acid and is less effective than other forms like citrate or malate.
Magnesium is exclusively in the carbonate form, which has low systemic bioavailability and is more likely to cause laxative effects than provide broad physiological benefits.

Goals

Offers basic mineral components for skeletal structure, but the low bioavailability and lack of Vitamin D significantly restrict its direct or indirect benefits for joint health.
Contains calcium and magnesium, but the poor absorption of both carbonate forms limits their effective contribution to cardiovascular function and blood pressure regulation.
Provides basic minerals but is severely deficient due to the absence of Vitamin D and the use of less-absorbed forms, making it an incomplete option for overall wellness.
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Calcium Magnesium Citrate Plus Vitamin D-3 Orange Vanilla

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(1033 ratings)
Offering excellent, highly absorbable citrate forms of both calcium and magnesium in a convenient liquid delivery system, plus Vitamin D3, this alternative is much more effective and safer for consistent mineral supplementation than dolomite powder.
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Calcium Magnesium Zinc + D3

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While it uses more common calcium carbonate and magnesium oxide, this alternative is produced by a reputable brand and includes Vitamin D3 and Zinc. It offers a safer, more transparent, and more complete basic supplementation at a comparable or even lower price per serving than dolomite.
60 Budget

Calcium Magnesium Zinc

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This is a very inexpensive alternative that provides a fundamental combination of calcium, magnesium, and zinc, along with Vitamin D3. While forms are basic, it serves as a budget-friendly and more reliably sourced option for general mineral intake compared to raw dolomite.
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Magnesium 250 mg

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(63969 ratings)
Offering an extremely low price per serving, this product primarily provides magnesium oxide with a small amount of calcium carbonate. While not a balanced calcium-magnesium supplement, it represents a very cheap and vetted source for some mineral intake, especially for magnesium, contrasting with the potential purity concerns of dolomite.
70 Value

Calcium Magnesium Zinc + D3

21st Century
4.7
(97627 ratings)
At a similar price point to dolomite, this product offers a more reliable and tested source of calcium and magnesium. Its inclusion of Vitamin D3 and Zinc makes it a significantly better and safer value for fundamental mineral supplementation.
90 Value

Magnesium & Calcium

NOW
4.8
(16706 ratings)
This is a highly valuable alternative, providing premium, bioavailable forms of calcium and magnesium with essential Vitamin D3 and Zinc. It offers a substantial quality upgrade for a still very reasonable increase in price per serving compared to the original.
95 Value

Calcium Bone Maker Complex with MCH-Cal and VitaMK7

Doctor's Best
4.7
(6735 ratings)
Despite a slightly higher price than dolomite, the superior forms, comprehensive co-factors like Vitamin K2 and D3, and overall verified quality make this an exceptional value for serious and effective bone health support.
95 Performance

Calcium Bone Maker Complex with MCH-Cal and VitaMK7

Doctor's Best
4.7
(6735 ratings)
This is a vastly superior choice, featuring highly bioavailable MCH-Cal and magnesium malate, fortified with crucial Vitamin D3 and K2. It offers excellent bioavailability, comprehensive bone support, and peace of mind regarding purity, unlike the often questionable raw dolomite source.
90 Performance

Magnesium & Calcium

NOW
4.8
(16706 ratings)
This product provides highly bioavailable forms of calcium (citrate, Aquamin) and magnesium (citrate, glycinate, taurinate, Aquamin), along with Vitamin D3 and Zinc. It represents a significant upgrade in quality, absorption, and overall efficacy compared to carbonate-based dolomite.
85 Performance

Calcium Magnesium Citrate Plus Vitamin D-3 Orange Vanilla

LifeTIME
4.8
(1033 ratings)
Offering excellent, highly absorbable citrate forms of both calcium and magnesium in a convenient liquid delivery system, plus Vitamin D3, this alternative is much more effective and safer for consistent mineral supplementation than dolomite powder.
Report alternatives