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A calcium and magnesium supplement with mixed bioavailability forms and less effective Vitamin D2, offering moderate overall value.
A calcium and magnesium supplement with mixed bioavailability forms and less effective Vitamin D2, offering moderate overall value.
NOW Coral Calcium Plus is designed as a broad-spectrum mineral supplement. It provides 500mg of elemental calcium from coral calcium and 750mg of elemental magnesium from a blend of magnesium oxide, citrate, and aspartate. The inclusion of magnesium citrate and aspartate is a strength, as these forms are generally well-absorbed and contribute effectively to magnesium-related goals like stress relief and sleep. However, the calcium source (coral calcium, predominantly calcium carbonate) has lower bioavailability and requires adequate stomach acid for absorption. Furthermore, the product contains Vitamin D2 (ergocalciferol) at 10mcg, which is less effective than Vitamin D3 (cholecalciferol) at raising and maintaining serum vitamin D levels, a critical factor for calcium absorption and utilization. While the price per serving is relatively low at $0.17, the compromises in bioavailability and Vitamin D form make it a less optimal choice compared to more advanced calcium-magnesium supplements.
![]() | $ 22.59 | |
![]() | $ 23.10 | |
![]() | $ 21.95 | |
$ 24.49 |
Ingredient | Amount per serving |
---|---|
Vitamin D (Ergocalciferol) | 10 mcg |
Calcium (Coral Calcium) | 500 mg |
Magnesium (Magnesium Oxide, Magnesium Citrate, Magnesium Aspartate) | 250 mg |
fossilized Coral Calcium | 1.43 Gram(s) |