Likely Safe Medium confidence

GNC Pro Performance Bulk 1340 Mass Gainer Protein Powder, 50g, Gluten Free, Whey, Creatine, BCAA, 3rd Party Tested, Muscle Recovery & Growth, Micronutrients, Vanilla Ice Cream, 9 Servings

GNC ★★★★☆ 4.5 · 1,262 reviews

Product is labeled gluten-free and uses whey protein, with 3rd-party testing claims; however, explicit gluten-free facility details or gluten-specific certifications are not evidenced in the data.

🌾 Gluten-free labeled ⚠ No 3rd-party cert
$51.99
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Celiac verdict
Likely safe
Confidence
Medium
Type
Protein powder
Size
7.14 pound (pack of 1)
Price tier
Premium
Read
5 min
✅ Why it works
  • High protein and calorie content per serving (50 g protein, 1,340 calories)
  • Labeled gluten-free
  • Contains creatine and BCAAs
  • 3rd party tested
  • Mixes well with milk and is valued by many reviewers
  • Reported weight/muscle gains for some users
⚠ Keep in mind
  • Taste can be very sweet and feedback is mixed
  • Some buyers report stomach discomfort
  • Container reportedly holds 9 servings despite large size
  • Currently unavailable in some listings

Gluten safety details

Labeled gluten-free
Yes
Certifications
None documented
Ingredient risks
Contains whey (dairy) per labeling, Gluten-free labeling does not confirm absence of gluten cross-contact without facility/certification details
Cross-contact notes
No facility cross-contact information is provided in the data; cross-contact risk cannot be confirmed

Product is labeled gluten-free and uses whey protein, with 3rd-party testing claims; however, explicit gluten-free facility details or gluten-specific certifications are not evidenced in the data.

No facility cross-contact information provided Cross-contact risk cannot be confirmed without certification details

What to expect

You can expect a high-calorie, high-protein mass gainer designed to support muscle growth and recovery. It contains whey (dairy), creatine, and BCAAs, and is labeled gluten-free. Real users report good mixability with milk and noticeable weight/muscle gains for some, but taste can be very sweet and some users experience digestive discomfort. Pack size appears large, with some listings noting 9 servings per container.

👍 Best for
  • Individuals aiming to increase mass/weight with high-calorie protein supplementation
  • Athletes seeking a combined protein, creatine, and BCAA formula for post-workout recovery and growth
👎 Not ideal for
  • Those avoiding dairy or seeking plant-based options
  • Individuals who are sensitive to sweetness or have digestive sensitivity
  • People needing low-calorie or low-sugar options
  • Anyone requiring explicit gluten-free facility certifications or cross-contact assurances

The full guide

What it is and how it works

Each serving provides 50 g of protein and 1,340 calories, supporting high-calorie needs for mass gain and recovery. The formula includes whey protein (dairy), creatine, and BCAAs; it is labeled gluten-free and is described as 3rd-party tested in product data, which many users look for when evaluating gluten safety and quality. Container size is large, and some listings note that the container provides 9 servings, though availability and packaging details can vary across retailers.

Gluten safety and certifications

The product is labeled gluten-free, but the data provided does not show explicit gluten-free certifications (such as GFCO or NSF) evidence. Certifications listed in the data are not present. Cross-contact information from the facility is not disclosed in the data, so explicit cross-contact assurances are not evidenced. The gluten-safety verdict given in the data is 'likely_safe' with medium confidence, based on gluten-free labeling and dairy-based formulation, rather than documented facility certifications.

Taste, texture, and tolerance

Taste feedback is mixed: some reviewers find the vanilla ice cream flavor appealing, while others consider it very sweet. Digestive tolerance varies, with some buyers reporting stomach discomfort after use. Mixability is noted positively by many reviewers, particularly with milk, contributing to a perception of good quality and value for some users.

Who it's for and how to use

Best for individuals seeking to increase mass/weight with a high-calorie, high-protein supplement, and for athletes looking for a combined protein, creatine, and BCAA formula for post-workout recovery and growth. Not ideal for those avoiding dairy or seeking plant-based options, or for anyone sensitive to sweetness or digestive issues. People needing explicit gluten-free facility certifications or cross-contact assurances may want to verify current certifications and manufacturing details with the retailer. Use considerations include pairing with milk or other liquids, noting the high calorie and protein content, and understanding that price per serving may vary by retailer.

Value, price, and comparison

The product is described as premium-priced at $51.99 for a large container, with some listings noting 9 servings. Price per serving and overall value may vary by retailer. Key differentiators include 50 g protein per serving, 1,340 calories per serving, and the inclusion of creatine and BCAAs, plus third-party testing. It also stands out for gluten-free labeling, though explicit gluten-free facility certifications are not evidenced in the listed data. Compared with other gluten-free mass gainers, this product emphasizes high protein and calories along with combined ingredients (creatine and BCAAs) and gluten-free labeling, but users should consider potential taste preferences, digestive tolerance, and current stock availability.

What shoppers say

💚 People liked

⚠ People flagged

Taste can be too sweet for some
Some buyers experience stomach discomfort
9 servings per container can feel low given container size

Key takeaways

  • Look for 50 g protein and 1,340 calories per serving for mass gain efficacy.
  • Note the dairy content and potential sweetness; tolerance varies.
  • Check serving counts (9 servings in some listings) and current stock.
  • Consider price per serving and whether gluten-free certification details matter to you.
How we assess this: Gluto summarizes manufacturer labeling, listing data, and community signals — it is not a medical guarantee. Always read the current label and confirm with the manufacturer before purchase, especially for celiac disease.

Evidence gaps for this product:
  • Full ingredient list not provided in the data
  • No explicit gluten-free certification (GFCO/NSF) evidenced
  • Cross-contact facility details not disclosed
  • Some sources show 9 servings; packaging inconsistency across listings
  • Limited non-Amazon sources with complete text (many scraped pages unavailable)
Likely Safe GNC Pro Performance Bulk 1340 Mass Gainer Protein Powder, 50g, Gluten Free, Whey, Creatine, BCAA, 3rd Party Tested, Muscle Recovery & Growth, Micronutrients, Vanilla Ice Cream, 9 Servings $51.99
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