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600+D3

21st Century
4.8
★ ★ ★ ★ ★
(7354 ratings)
Calcium 600 mg
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Score97

A simple and effective budget-friendly tablet providing 600mg of calcium and essential vitamin D3.

How scoring works
Quantity:75 Tablet(s) • (75 servings)
Goals:
Bone Health

Score 97

A simple and effective budget-friendly tablet providing 600mg of calcium and essential vitamin D3.

How scoring works

Also available as

3 options
400 servings Calcium 600 mg • 400 Tablet(s) • 400 servings $11.99 ($0.02 per serving) 400 servings Calcium 600 mg • 400 Tablet(s) • 400 servings $13.99 ($0.03 per serving) 75 servings Calcium 600 mg • 75 Tablet(s) • 75 servings $4.99 ($0.06 per serving)
$4.99($0.06 per serving)
iHerb
$ 4.24
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Analysis

Calcium carbonate is a very concentrated form of calcium, which allows for a smaller tablet while still delivering 600mg. The inclusion of vitamin D3 is the most important addition here, as it facilitates the mineral's movement into the bone tissue.

For anyone looking for a no-frills, budget-friendly way to support their skeletal system, this is a very practical choice. It targets the two most common nutritional gaps for bone density maintenance.

Pros

  • Very affordable price point
  • Includes necessary vitamin D3
  • Standard 600mg elemental dose
  • Easy one-tablet serving

Cons

  • Carbonate form requires food
  • No magnesium included
  • Basic filler ingredients used

Warnings

  • Always take with a full meal
  • Consult a professional if you have a history of kidney stones

Nutrient quality

92 Highest impact

Synergy between calcium and vitamin D3 supports foundational structural goals for bone health. While carbonate is less bioavailable, the inclusion of D3 significantly improves mineral utilization.

Ingredient transparency

99 Highest impact

All active ingredients and their respective amounts are clearly listed on the nutrition panel. Labeling follows standard industry practices for serving size and usage guidance.

Customer satisfaction

98 Highest impact

Superior user ratings confirm reliable user satisfaction with the product's performance. Massive review volume provides a high level of confidence in the product's consistency and tolerability.

Value for money

100 Highest impact

Exceptional cost per serving makes this one of the most accessible bone health supplements. Bulk packaging and synergistic formula provide superior value for regular users.

Report analysis

Goals

Bone Health
Impact
Highest effect
A- Goal FitB Strength of SupportC CoverageA Formula Quality

Calcium carbonate provides a robust dose of the primary structural mineral needed to maintain bone density and strength. Vitamin D3 is included to ensure efficient intestinal absorption and mineral transport to the skeletal matrix.

The use of calcium carbonate is less than ideal due to its lower bioavailability and requirement of stomach acid for absorption. The selection also lacks magnesium and vitamin K2, which are necessary for full biological synergy and skeletal transport efficiency.

View goal →

Ingredients

IngredientAmount per serving
Vitamin D3 (Cholecalciferol)
 20 mcg
Calcium (Calcium Carbonate)
 600 mg
Gluten Free Adults 18–50
Report overview
Calcium (Calcium Carbonate) · 600 mg OverallScore70
C+ Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyA+ Value
This supplement combines 600 mg of calcium carbonate with a high dose of vitamin D3 for targeted bone support. It is a highly affordable choice for basic mineral needs, providing efficient per-serving potency.
View ingredientView products
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