Mass Pro High Protein Mass Gainer
G6 Sports Mass Pro High Protein Mass Gainer is a mass gainer protein powder with 64 g of protein per 5 scoops (218.9 g). It scores 29/100 on the TBPP Quality Score. We found no third-party testing certification.
Nutrition per serving
Vanilla flavor, from the label.
| Serving size | 5 scoops (218.9 g) |
|---|---|
| Protein | 64 g |
| Calories | 820 |
| Carbohydrates | 126 g |
| Sugar | 8 g |
| Fat | 7 g |
| Sodium | 290 mg |
| Protein by weight | 29% |
| Leucine | 6.51 g |
| BCAAs | 13.49 g |
How it scored
29 of 100 points. How we score
| Criterion | Points | Why |
|---|---|---|
| Protein density | 6 / 30 | 29% of each scoop is protein |
| Third-party testing | 0 / 25 | No verified independent testing program |
| Label transparency | 10 / 20 | adds free amino acids that inflate the protein number |
| Sugar | 2 / 10 | 8 g sugar per serving |
| Ingredient simplicity | 6 / 10 | Mix of natural and artificial flavors or sweeteners |
| Verified label data | 5 / 5 | 7 of 7 label values verified |
Formula and label
| Type | Mass Gainer |
|---|---|
| Protein sources | Whey Protein Concentrate |
| Third-party testing | None found |
| Sweeteners | Sucralose |
| Proprietary blend | No |
| Added free amino acids | Yes |
| Dietary | None listed |
| Allergens | Milk |
| Made by | G6 Sports (SDC Nutrition) · USA |
| Sold at | G6 Sports Nutrition (direct), GNC |
Price
$119.99 for 6.76 lb bag. About $8.57 per serving, or $3.35 per 25 g of protein.
Sizes: 6.76 lb (14 servings)
Flavors (4)
- Chocolate
- Vanilla
- Cookie Butter
- Banana Split
Sources
- https://g6sportsnutrition.com/
- https://g6sportsnutrition.com/products/mass-pro-gainer
- https://cdn.shopify.com/s/files/1/0107/9197/7018/files/MassPro-Vanilla_BACK.png
- https://www.gnc.com/mass-gainers/520823.html
- https://www.gnc.com/mass-gainers/520824.html
- https://www.gnc.com/mass-gainers/520825.html
Vanilla nutrition from the brand's back-of-bag label image (2026-10-14): 5 scoops 218.9 g, 14 servings, 820 kcal, 7 g fat, 126 g carbs, 0 g fiber, 8 g sugar, 290 mg sodium, 64 g protein; L-leucine 6,513 mg, L-isoleucine 3,457 mg, L-valine 3,521 mg (each 'as whey protein and L-' amino acid, so added_amino_acids is true) and creatine monohydrate 5,000 mg. Other ingredients: maltodextrin, whey protein concentrate, natural & artificial flavors, avocado powder, sucralose, coconut oil powder, MCT oil; 'Contains milk'. 'Made in USA', manufactured and distributed by SDC Nutrition, Pittsburgh PA. $119.99 per 6.76 lb bag on the brand store (Vanilla showed sold out there). GNC lists Chocolate, Vanilla and Cookie Butter at 14 servings.
Good to know
Last checked 2026-10-14. Labels change, so check the package before buying if you have allergies. If you are pregnant, nursing or buying for a child, ask your doctor before adding a supplement.