BioStacks
NOW

Calcium & Magnesium

2 Tablets · 50 servings · $0.20/serving

iHerbAmazon

Best for

DentalBone & Joint

Ingredients (2)

Magnesium

100%

Dose

500 mg

Target

100–400 mg

Form

Standard

Calcium

100%

Dose

1000 mg

Target

200–600 mg

Form

Standard

Other Ingredients (7)

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

Coating (unspecified)Coating

Generic tablet coating declaration where the label does not itemize the coating's components; modern aqueous film coatings are typically cellulose-based (HPMC) with a plasticizer

Croscarmellose SodiumDisintegrant

Cross-linked cellulose derivative used as a superdisintegrant

Hydroxypropyl CelluloseBinder

An inert modified-cellulose polymer used as a binder, film-former, and disintegrant.

Microcrystalline CelluloseBinder

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

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

How to Take It

Best taken in the evening

The Magnesium in it is what pulls this toward the evening. Calcium is easier on the stomach taken with food.

With food
Keep it away from high-oxalate foods like spinach
Space it a couple of hours from Iron and Zinc

On the label

As a dietary supplement, take 2 tablets daily.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$9.99

$10$20$50

Cheaper than 93% of 579 magnesium supplements

Track this supplement in your stack

Get personalized insights, interactions, and coverage recommendations.

Get Started Free

Similar Supplements

Source Naturals

Magnesium Bis-Glycinate

😴 for Sleep

93
Chelated Calcium Magnesium

Bluebonnet

Chelated Calcium Magnesium

🦷 for Dental

91
Magnesium Glycinate

Source Naturals

Magnesium Glycinate

😴 for Sleep

85
Cal/Mag 2:1 (Malate)

Pure Encapsulations

Cal/Mag 2:1 (Malate)

🦷 for Dental

81
Calcium Magnesium (Citrate)

Pure Encapsulations

Calcium Magnesium (Citrate)

🦷 for Dental

81

Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and 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. clinical 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.

BioStacks

Know exactly what's in your supplements.

Navigate

  • Home
  • App Store
  • Google Play

Resources

  • Contact & Support
  • Pricing
  • Terms of Service
  • Privacy Policy
  • Refund Policy

Explore

  • Health Areas
  • Best Supplements
  • Nutrients
  • All Supplements

Popular Picks

  • Best Magnesium for Sleep
  • Best Collagen for Skin
  • Best Creatine for Muscle
  • Best Vitamin D for Bone Health
  • Best Probiotics for Digestion
  • Best CoQ10 for Heart

Free Tools

  • Interaction Checker
  • Dose Checker
  • Form Comparison

Field Guides

  • Magnesium for sleep
  • Reading labels
  • Interaction checker
  • Dose checker
  • Harmful ingredients
  • Proprietary blends
  • Stack building
  • Scan without barcode
  • All guides →
© 2026 BioStacks. All rights reserved. Not medical advice.