Cheapest casein protein powder
Micellar casein is thicker and slower to digest than whey. Here is the cheapest per kg of protein. Prices updated 7 Nov 2026
Australia: Bulk Nutrients Micellar Casein Protein at Bulk Nutrients: A$65 per kg of protein (A$50.00 for 1 kg, 77% protein).
| # | Product | A$ per kg of protein | Price | Protein | Link |
|---|---|---|---|---|---|
| 1 | Bulk NutrientsMicellar Casein Protein | A$65A$1.95 per 30 g protein | A$50.001 kg | 77%label | View Bulk Nutrients Micellar Casein Protein at Bulk Nutrients |
Prices checked 7 Nov 2026 (daily), cheapest flavour and best-value size in stock, before shipping and discount codes. Protein % is from each label. How we calculate.
No United States products match this list yet. We add merchants every week.
No United Kingdom products match this list yet. We add merchants every week.
We have fewer casein products than whey so far; we add stores every week. If your country shows no casein yet, the whey ranking includes blends that contain casein.
FAQ
What is casein?
Casein is the main protein in milk (about 80% of it). Micellar casein powders are filtered from milk and mix thicker than whey. Many people use them as a slower-digesting protein, for example before bed.
Is casein cheaper than whey?
Usually a little dearer per kg of protein. Check both tables: when casein is on sale it can match whey.
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General information only, not medical or dietary advice. Check the label for allergens and talk to a doctor or dietitian if you are pregnant, have a medical condition or take medication.