Protein Whey Isolate
Portions Master Protein Whey Isolate is a whey isolate protein powder with 23 g of protein per 1 scoop (28.4 g). It scores 64/100 on the TBPP Quality Score. We found no third-party testing certification.
Nutrition per serving
Chocolate Brownie flavor, from the label.
| Serving size | 1 scoop (28.4 g) |
|---|---|
| Protein | 23 g |
| Calories | 100 |
| Carbohydrates | 1 g |
| Sugar | Not verified |
| Fat | 1 g |
| Sodium | 60 mg |
| Protein by weight | 81% |
| Leucine | 2.5 g |
| BCAAs | 5.13 g |
How it scored
64 of 100 points. How we score
| Criterion | Points | Why |
|---|---|---|
| Protein density | 30 / 30 | 81% of each scoop is protein |
| Third-party testing | 0 / 25 | No verified independent testing program |
| Label transparency | 20 / 20 | Fully disclosed formula, no amino spiking |
| Sugar | 0 / 10 | Sugar not verified |
| Ingredient simplicity | 10 / 10 | Natural flavors and sweeteners |
| Verified label data | 4 / 5 | 6 of 7 label values verified |
Formula and label
| Type | Whey Isolate |
|---|---|
| Protein sources | Whey Protein Isolate |
| Third-party testing | None found |
| Sweeteners | Steviol Glycosides |
| Proprietary blend | No |
| Added free amino acids | No |
| Dietary | Gluten-Free, Soy-Free, Lactose-Free, Non-GMO |
| Allergens | Milk |
| Made by | Portions Master · USA |
| Sold at | Portions Master (direct), GNC |
Price
$49.99–$59.99 for 2 lb (32 servings). About $1.56 per serving, or $1.70 per 25 g of protein.
Sizes: 2 lb (32 servings), 5 lb
Flavors (5)
- Chocolate Brownie
- Vanilla Ice Cream
- Birthday Cake
- Peanut Butter Cup
- Strawberries & Cream
Sources
- https://www.portionsmaster.com/products/portions-master-non-gmo-cross-flow-microfiltration-whey-protein-isolate-sweetened-with-stevia-chocolate-brownie
- https://www.portionsmaster.com/products.json?limit=250
- https://api.ods.od.nih.gov/dsld/v9/label/331341
- https://api.ods.od.nih.gov/dsld/v9/label/329697
- https://www.gnc.com/search?q=portions%20master%20whey
Nutrition from NIH DSLD 331341 (Chocolate Brownie 2 lb, 32 servings, UPC 828176305103, entered 2025-06-25): 1 scoop (28.4 g), 100 kcal, 1 g fat, 1 g carbs (1 g fiber), 23 g protein, 60 mg sodium; no sugar line transcribed, so sugar_g is null (label claims 0 g added sugar). Leucine 2,498 mg and BCAAs 5.13 g (leucine 2,498 + isoleucine 1,442 + valine 1,185 mg) from the label's typical amino acid profile. Birthday Cake (DSLD 329697) is 24 g protein, 0.5 g fat, 65 mg sodium. Ingredients: whey protein isolate (cross-flow microfiltered), cocoa, natural flavoring, xanthan gum, steviol glycosides. Contains milk; facility also processes soy, fish, shellfish, peanuts, tree nuts, wheat and eggs. Gluten-, soy-, lactose- and GMO-free are brand claims on portionsmaster.com; 'manufactured in a certified drug free facility' is a facility claim, not a product certification, so none listed. Prices from the brand Shopify store 2026-10-14: $59.99 per 2 lb for most flavors, Vanilla Ice Cream $49.99; 5 lb listed at $79.99 but unavailable. Listed on GNC.com as 'Protein Whey Isolate' (32 servings); GNC product pages were behind a bot check when price was checked, so GNC price not recorded.
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.