GNC Calcium Plus With Magnesium
Brand: GNC · Form: SOFTGEL CAPSULE [E0161] On Market
Our assessment
Our assessment: This supplement provides calcium and magnesium, two minerals essential for bone and muscle health. The evidence shows that calcium supports bone density and neuromuscular relaxation [NIH ODS]. However, you should be aware of the specific risks and interactions associated with calcium supplementation before starting.
How it works
Think of calcium as a structural builder for your bones and a signal regulator for your nerves and muscles. It supports bone mineralization and mineral deposition, and it helps your muscles relax and your nerves signal properly [NIH ODS]. This product also includes magnesium, which works alongside calcium for these functions.
Safety profile
The FDA has received a total of 592,059 adverse event reports for products in this category [FDA data]. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer. Very high levels 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 several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
If you decide to use this supplement, take it with food and separate it from any medications listed above by at least two hours. Data on the exact safe upper limit for your individual health status is not available in the provided data. Because of the potential for serious side effects at high intakes, we recommend you speak with your healthcare provider to determine if this supplement is right for you and to review any medications you are taking [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | GNC |
|---|---|
| Serving Size | |
| Contents | 180.0 Softgel(s) |
| Market Status | On 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