GNC Pro Performance Amino 1000
Brand: GNC Pro Performance · Form: CAPSULE [E0159]
Our assessment
The evidence shows that GNC Pro Performance Amino 1000 contains calcium as its primary active ingredient. Our assessment: this is a calcium supplement marketed under a different name. For most adults, calcium is essential for bone health, but you need to be careful with dosing and timing, as high intakes carry real risks [NIH ODS].
How it works
Think of calcium as a structural builder for your skeleton and a signal messenger for your nerves and muscles. It supports bone density and mineral deposition, and it helps your muscles relax and your nerves send signals properly [NIH ODS].
Safety profile
FDA received 592,059 total adverse event reports across all supplements. For calcium specifically, data not available on report counts. High calcium intake can cause constipation, nausea, weight loss, extreme tiredness, frequent urination, and abnormal heart rhythms. Some research suggests high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. Calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
If you are using this product for calcium, start by assessing your total daily calcium intake from food and other supplements. Do not exceed 2,000 mg total per day from all sources. Take this supplement separately from thyroid medication and antibiotics by at least 2 hours. Data not available on the exact milligram strength per tablet — check the label carefully [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | GNC Pro Performance |
|---|---|
| Serving Size | |
| Contents | 240.0 Softgel 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