Magnesium & Calcium
NOW
Score 15
This product contains a blend of calcium, magnesium, zinc, and Vitamin D3, but its excessively high magnesium dosage of 4000mg per serving raises significant safety and practicality concerns.
Score 15
This product contains a blend of calcium, magnesium, zinc, and Vitamin D3, but its excessively high magnesium dosage of 4000mg per serving raises significant safety and practicality concerns.
Also available as 1 option
Analysis
This supplement from NOW combines Vitamin D3, calcium, magnesium, and zinc in a tablet form. It utilizes a variety of mineral forms, including readily absorbed options like calcium citrate, magnesium glycinate, magnesium taurinate, and L-OptiZinc, alongside Aquamin TG seaweed-derived minerals for both calcium and magnesium. The inclusion of Vitamin D3 is also a good choice to assist with calcium utilization.
However, the most critical aspect of this product is its listed magnesium content, totaling 4000mg per serving from five different sources. This dosage far exceeds typical nutritional needs and safe upper intake levels for supplemental magnesium, presenting a substantial risk of adverse effects such as severe digestive upset or more serious complications. The practical utility of the product is severely undermined by this extreme quantity.
While the calcium (800mg) and zinc (15mg) dosages are generally reasonable and the forms are good, the overwhelming magnesium amount makes it difficult to recommend this product as a balanced daily mineral supplement. Users would need to critically assess whether such a high magnesium intake is appropriate or even safe for their individual needs, likely requiring professional guidance.
Pros
- Includes several generally well-regarded forms of magnesium (citrate, glycinate, taurinate).
- Contains calcium citrate and Aquamin TG, which are considered good calcium sources.
- Provides L-OptiZinc, a form often chosen for better absorption.
- Includes a reasonable dose of Vitamin D3 to support calcium metabolism.
- High customer review count suggests general popularity, although the magnesium dosage issue is a major concern.
Cons
- The listed total magnesium dosage (4000mg) is exceptionally high and potentially unsafe for regular consumption.
- Such a high dose of magnesium is very likely to cause severe digestive issues like diarrhea, nausea, and abdominal cramps.
- The very large tablet size common for multi-mineral blends might be challenging for some to swallow.
- The extreme imbalance in mineral ratios makes it unsuitable as a balanced daily supplement.
Warnings
- Consult a healthcare professional before taking this product due to the exceptionally high magnesium content.
- High doses of magnesium can cause severe digestive upset, including osmotic diarrhea.
- Individuals with kidney issues or those on certain medications should be particularly cautious with high magnesium intake, as it can lead to hypermagnesemia.
$11.39($0.34 per serving)
 Vitacost | $ 11.39 | |
 Daily Vita | $ 11.60 | |
 Amazon | $ 11.60 | |
 iHerb | $ 12.24 | |
| iHerb | $ 12.24 | |
 Walmart | $ 15.96 |
Goals
Impact
Lower effect
Calcium, magnesium, and vitamin D3 all contribute to bone health, and the forms included are generally well-utilized by the body. However, the extremely high magnesium dose makes the product impractical and potentially harmful for consistent long-term use for this purpose.
Impact
Lower effect
Zinc and calcium can contribute to nail strength, and magnesium is an essential mineral. Despite the inclusion of these beneficial elements, the problematic magnesium dosage makes regular use challenging and potentially uncomfortable.
Impact
Lower effect
Magnesium, calcium, and vitamin D3 are often used to support cardiovascular function. While the ingredients target heart health, the very high magnesium quantity introduces significant concerns that outweigh potential benefits for this goal.
Impact
Lower effect
The combination of magnesium, calcium, and vitamin D3 typically offers support for cardiovascular well-being. However, the excessive magnesium dosage means this product is not a sensible option for consistent cardiovascular support due to potential adverse effects.
Impact
Lower effect
Minerals like calcium and magnesium are vital for muscle function and recovery, which are important for fitness. However, the severely unbalanced magnesium content could interfere with training and general well-being rather than enhance it.
Impact
Lower effect
Magnesium and zinc are often associated with supporting brain function and cognitive processes. Despite the presence of these beneficial minerals, the impractical magnesium dose makes this product a poor choice for sustained cognitive support.
Impact
Lower effect
Magnesium and Vitamin D are often cited for their role in mood regulation. The inclusion of these, along with zinc, could theoretically offer support, but the extreme magnesium quantity complicates its use for this purpose due to likely side effects.
Impact
Lower effect
Magnesium and Vitamin D play roles in energy production and metabolic processes. While these ingredients are present, the very high magnesium dosage could lead to side effects that hinder overall energy levels and well-being.
Ingredients
| Ingredient | Amount per serving |
|---|---|
Vitamin D3 | 25 mcg |
Calcium | 400 mg |
Magnesium | 800 mg |
Zinc | 15 mg |
Zinc 70
The product contains 15mg of zinc from L-OptiZinc Monomethionine, which is a readily absorbable form. This is a reasonable and beneficial dose for daily zinc supplementation for many adults.
Calcium 60
The product provides 800mg of calcium from two forms, Calcium Citrate and Aquamin TG, which are generally well-absorbed. This amount is a good contribution towards daily calcium needs for many individuals, assuming they don't consume excessive calcium from other sources.
Magnesium 10
While the product includes multiple quality forms of magnesium like glycinate and taurinate, the total listed quantity of 4000mg per serving is dangerously high and far exceeds safe upper limits for magnesium supplementation. This makes the product unsuitable for practical magnesium intake.
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