BioStacks
Kirkland Signature

Calcium Citrate Magnesium and Zinc

2 Tablets · 250 servings

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What it does

A multivitamin and mineral formula.

Vitamin D

vitamin d3Premium

Cholecalciferol (vitamin d3): Supports normal bones; D3 generally raises vitamin D blood levels more than comparable D2 doses.

Calcium

Form not confirmedGrade —

Supports the maintenance of normal bones and teeth, muscle function and nerve signaling.

General HealthDentalBone & Joint
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Ingredients (8)

Other ingredients

Magnesium OxideMineral Source

An inorganic magnesium salt used as a magnesium source or bulking mineral.

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

GlycineAmino Acid

Non-essential amino acid; smallest of the 20 proteinogenic amino acids. Mildly sweet taste — sometimes used as a low-glycemic flavor modifier in addition to its bioactive role

Calcium CarbonateBuffer

Common calcium salt used as a buffering agent, filler, or mineral fortification in supplements

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

CholecalciferolVitamin

Vitamin D3 added in trace amounts for fortification in protein powders and other supplements

Lab testing

How to take it

With a meal containing fat
Keep it away from high-oxalate foods like spinach
Space it a couple of hours from Iron

On the label

Suggested Use: Take two (2) tablets daily, preferably with a meal.

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

Not medical advice. Consult your healthcare professional.

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