GNC Magnesium Powder Lemon
Brand: GNC · Form: POWDER [E0162] On Market
Our assessment
The evidence shows that GNC Magnesium Powder Lemon is a supplement designed to provide magnesium, but based on the data provided, the specific ingredient listed in the NIH ODS section is calcium. Our assessment is that this product contains calcium, which plays a critical role in bone health and nerve function. However, we must be clear that the data does not include specific magnesium content or benefits for this product [NIH ODS].
How it works
Think of calcium as a foundational mineral — it supports bone mineralization, helping to build and maintain strong bone density, and it aids in neuromuscular relaxation by supporting proper muscle relaxation and nerve signaling [NIH ODS].
Safety profile
FDA has received a total of 592,059 adverse event reports across all supplements, though specific reports for this product are not broken out. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer. 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] [FDA data].
Our recommendation
We recommend you consult your healthcare provider before starting this supplement, especially if you take medications like bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, or phenytoin, as calcium can reduce their absorption [NIH ODS]. Since specific dosing information for this product is not available, follow the label directions and do not exceed recommended intakes without professional guidance.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | GNC |
|---|---|
| Serving Size | |
| Contents | 11.85 Ounce(s) 336.0 Gram(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