Casein Protein Powder
BulkSupplements Casein Protein Powder is a casein protein powder with 25 g of protein per 4 tbsp (about 30 g). It scores 100/100 on the TBPP Quality Score. It is NSF Certified for Sport.
Nutrition per serving
Unflavored flavor, from the label.
| Serving size | 4 tbsp (about 30 g) |
|---|---|
| Protein | 25 g |
| Calories | 110 |
| Carbohydrates | 0 g |
| Sugar | 0 g |
| Fat | 0 g |
| Sodium | 25 mg |
| Protein by weight | 83% |
| Leucine | Not verified |
| BCAAs | Not verified |
How it scored
100 of 100 points. How we score
| Criterion | Points | Why |
|---|---|---|
| Protein density | 30 / 30 | 83% of each scoop is protein |
| Third-party testing | 25 / 25 | Lot-tested for banned substances |
| Label transparency | 20 / 20 | Fully disclosed formula, no amino spiking |
| Sugar | 10 / 10 | 0 g sugar per serving |
| Ingredient simplicity | 10 / 10 | Unflavored |
| Verified label data | 5 / 5 | 7 of 7 label values verified |
Formula and label
| Type | Casein |
|---|---|
| Protein sources | Casein Protein |
| Third-party testing | NSF Certified for Sport |
| Sweeteners | None listed |
| Proprietary blend | No |
| Added free amino acids | No |
| Dietary | Gluten-Free, Soy-Free |
| Allergens | Milk |
| Made by | BulkSupplements |
| Sold at | BulkSupplements.com, Walmart |
Price
$20.97–$480.55 for 1 kg. About $0.64 per serving, or $0.64 per 25 g of protein.
Sizes: 100 g, 250 g, 500 g, 1 kg, 5 kg, 20 kg
Flavors (1)
- Unflavored
Sources
- https://www.bulksupplements.com/products/casein-protein-powder
- https://www.bulksupplements.com/products/casein-protein-powder.json
- https://cdn.shopify.com/s/files/1/0114/8869/0276/files/Casein-Protein-Powder-1kg-Label-V008.jpg?v=1790970319
- https://www.nsfsport.com/certified-products/search-results.php?search=BulkSupplements
- https://www.walmart.com/ip/BulkSupplements-Casein-Protein-Powder-30g-per-Serving-1-Kilogram-2-2-lbs-33-Servings/124396062
Nutrition from the brand's 1 kg label image: 4 tbsp (about 30 g), about 33 servings, 110 kcal, 0 g fat, 18 mg cholesterol, 25 mg sodium, 0 g carbs, 0 g sugars, 25 g protein. Ingredients: casein protein; contains milk. The label says only 'casein protein' (micellar form not stated). Amino profile is per 100 g (leucine 8.0 g/100 g), not per serving, so leucine_g/bcaa_g are null. Gluten-free, soy-free, no added sugar, additive-free are label icons. NSF Certified for Sport confirmed via nsfsport.com listing ('Bulk Supplements - CASEIN POWDER'). Prices from brand site 2026-10-14: 100 g $20.97, 250 g $23.97, 500 g $31.97, 1 kg $40.97, 5 kg $194.97, 20 kg $480.55; also listed at Walmart (2026-10-14 sweep).
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.