Brand
GNC Pro Performance AMP supplements
GNC Pro Performance AMP has 102 products in the NIH Dietary Supplement Label Database (192 labels), 93 of them on the market at its January 2026 release; its labels most often list potassium, calcium, leucine. It ranks 217 of 5,741 brands by products on file.
- Products on file
- 102192 labels, sizes and designs counted
- On the market
- 9391% of its products
- Labels disclosing no amount
- 0products whose label gives no amount per ingredient
- On file since
- 2012newest label May 24, 2018
What do GNC Pro Performance AMP labels contain?
The ingredients its products list most, with its median amount per serving against the median of every product listing the same ingredient.
| Ingredient | Its products | Its median | Market median |
|---|---|---|---|
| Potassium | 62 | 197.5 mg | 99 mg |
| Calcium | 59 | 200 mg | 115 mg |
| Leucine | 46 | 5.07 g | 2.5 g |
| L-Carnitine | 37 | 500 mg | 500 mg |
| Niacin | 29 | 20 mg | 20 mg |
| Arginine | 27 | 990 mg | 500 mg |
| Magnesium | 21 | 50 mg | 86 mg |
| Glutamine | 21 | 5 g | 1 g |
| Zinc | 18 | 3.88 mg | 11 mg |
| METHIONINE | 16 | 400 mg | 100 mg |
Source: Supplement Facts rows of GNC Pro Performance AMP's current labels and of every product's, NIH ODS Dietary Supplement Label Database version 9.4.0.
Every GNC Pro Performance AMP product
On-market products first, A to Z (page 3 of 3).
Every product with what it contains: the full list.
- Thermo Infernooff the market ยท 2 labels2018
- X-12off the market2014
What kinds of products does GNC Pro Performance AMP make?
GNC Pro Performance AMP products by DSLD product type
When did its products enter the database, and which are still sold?
| Year | On the market | Off the market |
|---|---|---|
| 2012 | 12 | 1 |
| 2013 | 12 | 0 |
| 2014 | 9 | 4 |
| 2015 | 25 | 0 |
| 2016 | 7 | 0 |
| 2017 | 20 | 3 |
| 2018 | 8 | 1 |
Source: NIH Dietary Supplement Label Database label entry dates and market events, version 9.4.0.
Who is behind it?
Its labels most often name General Nutrition Corporation (distributor), Pittsburgh, PA, on 89 products.
Seals its labels print: Informed Sport or Informed Choice (40). A seal is the label's claim; the certifier's own list confirms it.
Where next?
- Potassium
- Calcium
- Leucine
- L-Carnitine
- HoltraCeuticals
- Micro Ingredients
- Dr. Clark Store
- GNC Women's Ultra Mega
- All brands
How to read a brand's figures, and what labels cannot tell you about a brand: comparing supplement brands by their labels. Label data, not medical advice.