Calcium Magnesium Zinc + D3
21st Century
Score 55
This supplement provides key minerals and Vitamin D3 at mostly reasonable dosages, but its reliance on less bioavailable forms like calcium carbonate, magnesium oxide, and zinc oxide may limit absorption and overall effectiveness.
Score 55
This supplement provides key minerals and Vitamin D3 at mostly reasonable dosages, but its reliance on less bioavailable forms like calcium carbonate, magnesium oxide, and zinc oxide may limit absorption and overall effectiveness.
Analysis
21st Century's Calcium Magnesium Zinc + D3 supplement provides these four essential nutrients in a single tablet. It includes 1000mg of calcium from calcium carbonate, 400mg of magnesium from magnesium oxide, 15mg of zinc from zinc oxide, and 10mcg of Vitamin D3. This blend is often chosen to support bone health, muscle function, and immune system well-being.
The dosages for calcium (1000mg) and zinc (15mg) are reasonable for daily supplementation, and Vitamin D3 at 10mcg (400 IU) supports calcium absorption. However, the magnesium dosage of 400mg is slightly above the 350mg upper limit for supplemental magnesium, potentially causing mild digestive upset for some. Furthermore, the reliance on carbonate and oxide forms for calcium, magnesium, and zinc means that the actual amount absorbed by the body might be lower compared to more bioavailable chelated or citrate forms.
While this product offers a convenient way to get these minerals, its effectiveness is somewhat limited by the choice of less bioavailable ingredient forms, especially for magnesium and zinc. It serves as a basic, accessible option but might not be optimal for individuals seeking maximum absorption or those prone to digestive sensitivity from magnesium oxide.
Pros
- Provides a foundational blend of calcium, magnesium, zinc, and Vitamin D3.
- Calcium (1000mg) and zinc (15mg) dosages are generally appropriate for daily intake.
- Includes Vitamin D3, which aids in calcium absorption.
- Very widely available and often an economical choice.
- High customer review count indicates broad acceptance.
Cons
- Magnesium dosage (400mg) is slightly above the recommended upper limit for supplemental magnesium, which can cause mild digestive upset for some.
- Relies on less bioavailable forms such as calcium carbonate, magnesium oxide, and zinc oxide, which may not be absorbed as efficiently as other forms.
- Magnesium oxide is known for its laxative effect, potentially causing digestive discomfort.
- Vitamin D3 dosage (10mcg) is a bit low considering the high calcium intake.
Warnings
- If you experience digestive upset, consider reducing the dosage or taking it with food.
- Individuals with a history of kidney stones should discuss calcium supplementation with a healthcare professional.
- Consult a healthcare provider if you have any underlying health conditions or are taking medications.
$5.49($0.18 per serving)
 iHerb | $ 5.49 | |
 Pure Formulas | $ 5.82 | |
 Amazon | $ 7.97 |
Goals
Impact
Moderate effect
Calcium and Vitamin D3 are crucial for bone health, and this product provides both in good amounts. Magnesium also plays a role. However, the use of calcium carbonate and magnesium oxide, which are less absorbed, may slightly limit its efficacy for optimal bone support.
Impact
Moderate effect
This product provides a solid foundation of essential minerals and Vitamin D3 for overall health. The dosages are mostly reasonable, offering general support for various bodily systems, though not in the most absorbable forms.
Impact
Moderate effect
Zinc and calcium contribute to nail strength. While present in reasonable amounts, the use of zinc oxide means absorption might not be optimal, potentially reducing its effectiveness for nail health benefits.
Impact
Moderate effect
Magnesium and calcium are important for heart function. The dosages are generally appropriate, but the less bioavailable forms and slightly high magnesium could be suboptimal for consistent long-term heart support.
Impact
Moderate effect
Magnesium and calcium are involved in cardiovascular health. The product provides these minerals, but the less absorbed forms mean it might not offer the most potent or consistent support for cardiovascular well-being.
Impact
Moderate effect
Calcium and magnesium are vital for muscle function and recovery, which are important for fitness. The product provides these, but the less bioavailable forms might mean slower or less efficient uptake for active individuals.
Impact
Moderate effect
Zinc and magnesium are linked to brain function. While present, the use of less absorbed forms might result in a less pronounced effect compared to products with more bioavailable mineral chelates for cognitive support.
Impact
Moderate effect
Magnesium, zinc, and Vitamin D3 can play roles in mood regulation. The inclusion of these nutrients offers some support, but the use of less bioavailable forms might lessen their impact on mood compared to higher-quality options.
Ingredients
| Ingredient | Amount per serving |
|---|---|
Vitamin D3 | 10 mcg |
Calcium | 1000 mg |
Magnesium | 400 mg |
Zinc | 15 mg |
Calcium 60
The product provides 1000mg of calcium from calcium carbonate, a common form that, while effective, is best absorbed when taken with food. This amount is a good contribution to daily calcium needs for many individuals.
Zinc 55
The 15mg zinc from zinc oxide is a reasonable dosage, but zinc oxide has lower bioavailability compared to other forms like gluconate or picolinate. This means the body might not absorb as much of the zinc provided.
Magnesium 45
The 400mg magnesium from magnesium oxide is slightly above the supplemental upper limit of 350mg and is generally considered a less bioavailable form, often used more for its laxative effect. This makes it less ideal for optimal magnesium intake and potentially causes digestive discomfort.
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