Product Label

GNC Pro Performance RapidDrive Amino Series Glutamine 5000 Unflavored

Brand: GNC Pro Performance · Form: POWDER [E0162] On Market

Our assessment

The evidence shows that GNC Pro Performance RapidDrive Amino Series Glutamine 5000 Unflavored is marketed as an amino acid supplement, but the data provided does not list glutamine as an active ingredient. Instead, the only ingredient data available is for calcium, which is listed as a mineral. Data not available for glutamine content or its specific effects in this product. Based on the provided data, we cannot assess the primary intended benefit of this supplement.

How it works

Based on the ingredient data available, if this product contains calcium, it would support bone mineralization and neuromuscular relaxation [NIH ODS]. Think of calcium as a structural building block for your bones and a key player in muscle function. However, without data on glutamine, we cannot confirm the product's intended mechanism for muscle recovery or performance.

Safety profile

FDA received a total of 592,059 adverse event reports across all supplements, but specific report counts for this product are not available. For calcium, side effects from high intake include constipation, nausea, and weight loss [NIH ODS]. High levels in the blood can cause poor muscle tone, poor kidney function, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Calcium can also reduce absorption of medications like bisphosphonates, tetracycline antibiotics, and levothyroxine [NIH ODS]. Data not available for glutamine-specific side effects.

Our recommendation

We cannot recommend this product based on the data provided, as the primary ingredient (glutamine) is not confirmed. If you are considering a calcium supplement, be aware of the interactions and side effects. For specific guidance on amino acid supplements, data not available. Consult your healthcare provider before starting any new supplement regimen.

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandGNC Pro Performance
Serving Size
Contents10.56 oz. 300.0 Gram(s)
Market StatusOn 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

Original Label

View Full DSLD Label (PDF)

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