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.
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.
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.
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| Ingredient | Amount per serving |
|---|---|
Vitamin D3 | 25 mcg |
Calcium | 400 mg |
Magnesium | 800 mg |
Zinc | 15 mg |
