ProveIt Supplements

Independent, evidence-based supplement analysis.

✓ Not Sponsored

✓ No Paid Reviews

✓ Science-Based

Company

  • About Us
  • Our Methodology
  • Contact
  • Blog
  • Authors

Legal

  • Privacy Policy
  • Terms of Service
  • Medical Disclaimer
  • Affiliate Disclosure

Resources

  • All Categories
  • Ingredient Database
  • Browse Supplements
  • FAQ

© 2026 ProveIt Supplements. All rights reserved.

Medical Disclaimer: The information provided is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen.

Prove It
Browse SupplementsBlogAuthorsAboutMethodologyFAQ
Get Your Personalized Supplement StackSupplement Stack Quiz
Menu
HomeBrowse SupplementsBlogAuthorsAboutMethodologyFAQ
Cal 600-Mag 300-D

Cal 600-Mag 300-D

Viva Vitamins

#Multivitamin
83
Safety85
Efficacy80
Transparency75
Based on Examine, Wikipedia, and 23 other sources

Overview

This supplement effectively delivers three key nutrients—Calcium, Magnesium, and Vitamin D3—at doses that are generally considered beneficial for bone health and overall mineral balance. The combination of these ingredients is synergistic, as Vitamin D enhances calcium absorption, and magnesium helps regulate both calcium and vitamin D levels. The label indicates 'chelated' forms for calcium and magnesium, which typically implies better absorption, though the specific chelate is not named. The doses of 600 mg Calcium, 300 mg Magnesium, and 3 mcg (120 IU) Vitamin D3 per tablet align with a significant portion of daily requirements for adults, especially when considering dietary intake.

The Good

Provides a synergistic blend of Calcium, Magnesium, and Vitamin D3 for comprehensive bone health.

Includes significant doses of Calcium (600mg) and Magnesium (300mg) per tablet.

Utilizes 'chelated forms' of calcium and magnesium for potentially better absorption.

The Bad

Vitamin D3 dose (3mcg / 120 IU) is low and likely insufficient without additional intake for optimal bone health, especially for deficient individuals.

The specific 'chelated forms' of calcium and magnesium are not explicitly stated, reducing transparency.

The suggested use of '1 or more tablets daily' is vague and could lead to varied dosing and potential under-dosing if only one is taken.

Is it for you?

Best For: Individuals seeking bone health support, those with calcium or vitamin D deficiencies, older adults

Skip If: You have hypercalcemia, kidney disease, or are on certain medications without consulting a doctor.

Ingredients Analysis

Vitamin D3

3 mcg

Calcium

600 mg

Magnesium

300 mg

How to Use

Take as directed on the label, typically with meals to enhance absorption and reduce stomach upset.

Frequency:

Daily

Best Time:

Morning & Evening

When:

With food

Who Should Use This

Best For:

Individuals seeking bone health support, those with calcium or vitamin D deficiencies, older adults

Recommended Articles

Glutamine Dosage for Gut Health: A Guide

Glutamine Dosage for Gut Health: A Guide

Glutamine supports gut health with a recommended dosage of 5-30 grams per day, available in various supplement forms.

Herbal Boosters & COVID-19 Antivirals: Safe Mix?

Herbal Boosters & COVID-19 Antivirals: Safe Mix?

Herbal supplements may interact with COVID-19 antivirals, requiring careful consideration and further research.

2025's Top Vegan Protein Powders: A Buyer's Guide

2025's Top Vegan Protein Powders: A Buyer's Guide

In 2025, the best vegan protein powders are third-party tested, ensuring purity, safety, and high nutritional content.

Supplement Safety: Testing for Heavy Metals & Pesticides

Supplement Safety: Testing for Heavy Metals & Pesticides

Testing supplements for heavy metals and pesticides is crucial for consumer safety, with organizations like USP and NSF providing certifications to indicate rigorous testing.