NOW Coral Calcium Plus
Brand: NOW · Form: CAPSULE [E0159]
Our assessment
The evidence shows that the primary active ingredient in NOW Coral Calcium Plus is calcium, a mineral essential for bone health. However, our assessment is that this supplement is not a magic solution. Data on coral calcium specifically is limited, and the health benefits are tied to its calcium content, not the source [NIH ODS]. You should approach this product with the same caution as any standard calcium supplement.
How it works
Think of calcium as a structural building block for your bones. It supports bone mineralization and density, and it is also critical for neuromuscular relaxation and nerve signaling [NIH ODS]. While the product label may suggest unique benefits from coral calcium, the mechanism of action is identical to calcium from any other source.
Safety profile
FDA received 592,059 total adverse event reports across all supplements, though specific numbers for this product are data not available. The safety profile is based on calcium. High calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. High levels in the blood and urine can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Calcium can also reduce the absorption of medications like bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Our recommendation is to meet your calcium needs through food first. If you need a supplement, choose a standard calcium product with a clear dose. Do not exceed 2,500 mg of total calcium per day from food and supplements combined without medical supervision [NIH ODS]. Be cautious of coral calcium’s marketing claims, as they are not supported by unique data. Always check with your doctor before starting, especially if you take any of the medications listed above [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 100.0 Veg Capsule(s) |
| Market Status | Off Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide