Stackexpand_less
Analysisexpand_less
Please sign in to access analysis.
Profileexpand_less
Supplementsexpand_more
Calcium Magnesium Zinc + D3
21st Century
4.7
★ ★ ★ ★ ★
(97627 ratings)
Calcium 1000 mg
Zinc 15 mg
Magnesium 400 mg
Score 65.0
Affordable and includes D3, but uses less bioavailable mineral forms.
Quantity: 90 Tablet(s)Servings size: 3 Tablet(s) (30 servings)
Selected goals:
Other goals:
Joint Health
Bone Health
Heart Health
Muscle Gain
Fitness
leaderboard Score 65.0
Affordable and includes D3, but uses less bioavailable mineral forms.
The 21st Century Calcium Magnesium Zinc + D3 supplement is a highly popular and affordable option, providing the three key minerals along with essential Vitamin D3. The inclusion of D3 is a significant advantage for bone health, ensuring better calcium utilization. However, the choice of less bioavailable mineral forms (carbonates and oxides) means that a portion of the nutrients might not be absorbed as efficiently as with more advanced chelated or citrate forms. Despite this, its accessibility and the presence of D3 make it a solid budget-friendly choice for general mineral supplementation.
- Very affordable price per serving, offering great value for money.
- Includes Vitamin D3, which is crucial for calcium absorption and bone health.
- Provides all three essential minerals (Calcium, Magnesium, Zinc) in one supplement.
- Uses less bioavailable forms of calcium (Calcium Carbonate), magnesium (Magnesium Oxide), and zinc (Zinc Oxide).
- Less absorbable forms may lead to digestive discomfort for some individuals.
- Individuals with sensitive stomachs may experience mild digestive upset due to the carbonate and oxide forms of minerals.
$4.41($0.14 per serving)
 Amazon | $ 8.41 | |
 Pure Formulas | $ 4.41 | |
 iHerb | $ 5.49 |
| Ingredient | Amount per serving |
|---|---|
| Vitamin D3 (Cholecalciferol) | 10 mcg |
| Calcium (Calcium Carbonate) | 1000 mg |
| Magnesium (Magnesium Oxide) | 400 mg |
| Zinc (Zinc Oxide) | 15 mg |
Categories
Calcium 65.0
The product provides a substantial dose of Calcium Carbonate (1000mg) and importantly includes Vitamin D3 (10mcg), which significantly enhances its absorption and efficacy for bone health. While carbonate is less bioavailable, D3 compensates well.
Magnesium 60.0
It contains 400mg of Magnesium, but in the form of Magnesium Oxide, which is known for lower bioavailability compared to other forms like citrate or glycinate. This limits its effectiveness for individuals with significant magnesium deficiencies, despite the adequate dosage.
Zinc 60.0
The product offers 15mg of Zinc in the form of Zinc Oxide. While this dosage is sufficient, Zinc Oxide is less bioavailable than forms like zinc gluconate or picolinate, meaning a smaller portion may be absorbed and utilized by the body.
Goals
Bone Health 75.0
The inclusion of Vitamin D3 significantly boosts calcium absorption, making this product effective for bone health despite the calcium carbonate form. Magnesium and Zinc further contribute as cofactors, providing comprehensive support for bone density and strength.
General Health 70.0
As a multi-mineral supplement containing essential Calcium, Magnesium, and Zinc, along with Vitamin D3, it provides foundational support for numerous bodily functions. While forms are basic, it covers key micronutrient needs for overall well-being at an accessible price.
Joint Health 65.0
Magnesium and zinc contribute to joint health through their anti-inflammatory and tissue repair properties. While the forms used are not optimal for absorption, the presence of these minerals still offers some level of support for maintaining healthy joints and connective tissues.
Recommended Alternatives
70 Value 
Calcium Magnesium Zinc
Nature's Bounty
4.8
★★★★★
(59698 ratings)
Offers a comprehensive Ca/Mg/Zn/D3 blend at an exceptional price, providing outstanding value for a daily mineral supplement, despite using mixed forms.
90 Value 
Magnesium & Calcium
NOW
4.8
★★★★★
(16706 ratings)
Provides a high-quality blend of bioavailable Calcium, Magnesium, and Zinc forms, along with Vitamin D3, at a very reasonable price per serving, making it an excellent quality-to-cost choice.
95 Value 
Calcium Bone Maker Complex with MCH-Cal and VitaMK7
Doctor's Best
4.7
★★★★★
(6735 ratings)
Delivers premium bone support with MCH-Cal, high-quality magnesium malate, and K2 at a price per serving that offers substantial quality improvement for a modest increase in cost.
90 Performance 
Magnesium & Calcium
NOW
4.8
★★★★★
(16707 ratings)
Contains significantly more bioavailable forms of Calcium (Aquamin TG, Citrate), Magnesium (Taurinate, Citrate, Glycinate), and Zinc (L-OptiZinc), plus D3, offering greatly improved absorption and benefits.
95 Performance
Calcium Bone Maker Complex with MCH-Cal and VitaMK7
Doctor's Best
4.7
★★★★★
(6735 ratings)
Provides a superior formulation with MCH-Cal, highly absorbable DiMagnesium Malate, Vitamin K2, and Zinc Monomethionine, making it a top-tier choice for bone health.
80 Performance 
Zinc Magnesium & Vitamin B6
Sierra Fit
4.7
★★★★★
(922 ratings)
While lacking calcium, it offers excellent, highly bioavailable forms of Zinc (Aspartate, L-Monomethionine) and Magnesium (Citrate) at a comparable price, making it a superior choice for these two minerals.
70 Budget
Calcium Magnesium Zinc
Nature's Bounty
4.8
★★★★★
(59698 ratings)
Offers a comprehensive blend of Calcium, Magnesium, Zinc, and D3 at an even lower price per serving, providing superior value for budget-conscious consumers.
55 Budget 
600 + D3 plus Minerals
21st Century
4.8
★★★★★
(1551 ratings)
Represents an extremely low-cost option for Calcium, Magnesium, Zinc, and D3, making it an entry-level choice for basic mineral supplementation.
75 Budget 
Triple Magnesium Complex 400 mg
Swanson
4.8
★★★★★
(15585 ratings)
If focusing on magnesium, this provides a blend of forms (Oxide, Citrate, Aspartate) at a very low price, offering an economical magnesium source.
70 Value
Calcium Magnesium Zinc
Nature's Bounty
4.8
★★★★★
(59698 ratings)
Offers a comprehensive Ca/Mg/Zn/D3 blend at an exceptional price, providing outstanding value for a daily mineral supplement, despite using mixed forms.
90 Value
Magnesium & Calcium
NOW
4.8
★★★★★
(16706 ratings)
Provides a high-quality blend of bioavailable Calcium, Magnesium, and Zinc forms, along with Vitamin D3, at a very reasonable price per serving, making it an excellent quality-to-cost choice.
95 Value
Calcium Bone Maker Complex with MCH-Cal and VitaMK7
Doctor's Best
4.7
★★★★★
(6735 ratings)
Delivers premium bone support with MCH-Cal, high-quality magnesium malate, and K2 at a price per serving that offers substantial quality improvement for a modest increase in cost.
90 Performance
Magnesium & Calcium
NOW
4.8
★★★★★
(16707 ratings)
Contains significantly more bioavailable forms of Calcium (Aquamin TG, Citrate), Magnesium (Taurinate, Citrate, Glycinate), and Zinc (L-OptiZinc), plus D3, offering greatly improved absorption and benefits.
95 Performance
Calcium Bone Maker Complex with MCH-Cal and VitaMK7
Doctor's Best
4.7
★★★★★
(6735 ratings)
Provides a superior formulation with MCH-Cal, highly absorbable DiMagnesium Malate, Vitamin K2, and Zinc Monomethionine, making it a top-tier choice for bone health.
80 Performance
Zinc Magnesium & Vitamin B6
Sierra Fit
4.7
★★★★★
(922 ratings)
While lacking calcium, it offers excellent, highly bioavailable forms of Zinc (Aspartate, L-Monomethionine) and Magnesium (Citrate) at a comparable price, making it a superior choice for these two minerals.