Grass-Fed Whey Protein Isolate
Muscle Feast Grass-Fed Whey Protein Isolate is a whey isolate protein powder with 25 g of protein per About 1 scoop (30 g). It scores 90/100 on the TBPP Quality Score. It is Labdoor tested.
Nutrition per serving
Chocolate flavor, from the label.
| Serving size | About 1 scoop (30 g) |
|---|---|
| Protein | 25 g |
| Calories | 110 |
| Carbohydrates | 2 g |
| Sugar | 0 g |
| Fat | 0 g |
| Sodium | 55 mg |
| Protein by weight | 83% |
| Leucine | Not verified |
| BCAAs | 6 g |
How it scored
90 of 100 points. How we score
| Criterion | Points | Why |
|---|---|---|
| Protein density | 30 / 30 | 83% of each scoop is protein |
| Third-party testing | 15 / 25 | Independently tested for contaminants or label accuracy |
| Label transparency | 20 / 20 | Fully disclosed formula, no amino spiking |
| Sugar | 10 / 10 | 0 g sugar per serving |
| Ingredient simplicity | 10 / 10 | Natural flavors and sweeteners |
| Verified label data | 5 / 5 | 7 of 7 label values verified |
Formula and label
| Type | Whey Isolate |
|---|---|
| Protein sources | Whey Protein Isolate |
| Third-party testing | Labdoor tested |
| Sweeteners | Stevia Leaf Extract |
| Proprietary blend | No |
| Added free amino acids | No |
| Dietary | Grass-Fed, Vegetarian, Non-GMO, Soy-Free |
| Allergens | Milk |
| Made by | Muscle Feast · USA |
| Sold at | Muscle Feast (direct) |
Price
$74.49–$134.90 for 5 lb (about 75 servings). About $0.99 per serving, or $0.99 per 25 g of protein.
Sizes: 2 lb, 5 lb
Flavors (10)
- Unflavored
- Chocolate
- Vanilla
- Strawberry Cheesecake
- Cappuccino
- Raspberry
- Birthday Cake
- Dark Chocolate
- Cinnamon Roll
- Dark Chocolate Raspberry
Sources
- https://www.musclefeast.com/products/grass-fed-hormone-free-whey-isolate
- https://www.musclefeast.com/products/grass-fed-hormone-free-whey-isolate.js
- https://cdn.shopify.com/s/files/1/1409/4552/files/MF_Isolate_Nutritional_7-25-01_2e91feba-d9dc-455c-865e-4a0228e1efb4.jpg
- https://cdn.shopify.com/s/files/1/1409/4552/files/MF_Isolate_Nutritional_7-25-04_1e4ca0d0-e305-46ed-ba9a-35e64d6b375a.jpg
- https://cdn.shopify.com/s/files/1/1409/4552/files/3-_MF_White_Hydro_Labdoor.jpg
- https://www.musclefeast.com/pages/contact
Nutrition for Chocolate 5 lb from the brand's 7-25 Nutrition Facts image on musclefeast.com: 30 g (about 1 scoop), about 75 servings, 110 kcal, 0 g fat, 55 mg sodium, 2 g carbs, <1 g sugar (recorded as 0; 0 g added), 25 g protein; ingredients whey protein isolate (sunflower lecithin), cocoa powder, stevia leaf extract; contains milk. Vanilla 5 lb label: 26 g protein, 140 mg sodium, natural flavor and Himalayan pink salt. Approx. 6 g naturally occurring BCAAs per serving is a brand page claim. Grass-fed, rBST/rBGH-free, soy-free, vegetarian and non-GMO are brand claims. 'Ranked A+ by Labdoor' is a brand image claim for the Isolate. Flavors, sizes and prices from Shopify JSON 2026-10-14 (2 lb $74.49, 5 lb $134.90; 5 lb only in Unflavored, Chocolate, Vanilla). Brand address Nashport, OH.
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.