Quick Summary
Optimum Nutrition Gold Standard Casein is a chocolate-flavoured slow-digesting protein powder in a 0.92 kg pack, with 28 servings. It is presented as a casein protein powder and includes zinc, magnesium and naturally occurring glutamine and amino acids.
The product is intended for mixing with cold water, and the pack wording gives a serving direction of 1 heaped scoop to 300 ml. If flavour, serving count or pack size matter to your choice, check the selected pack and whether it matches the format you want.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Casein protein powder. This is the main format to compare against other protein powders. |
| Flavour | Chocolate Supreme. Buyers who want a different taste should choose carefully. |
| Pack size | 0.92 kg. This affects how long the pack will last and how much storage space it needs. |
| Servings | 28 servings. Compare this with how often you plan to use it. |
| Mixing direction | 1 heaped scoop to 300 ml of cold water, then stir, shake or blend until dissolved. |
| Added ingredients | Zinc, magnesium, naturally occurring glutamine and amino acids. |
What to Compare Before Buying
- Protein type: This is a casein powder, so compare it with whey or mixed protein if you want a different protein format.
- Flavour: The flavour is Chocolate Supreme, so check that this is the taste you want.
- Pack size and servings: The pack contains 0.92 kg and 28 servings, which helps you judge how long one container is likely to last.
- Mixing method: It is made with cold water and can be stirred, shaken or blended, so make sure that suits how you plan to prepare it.
Before You Decide
Confirm the flavour, pack size and serving count before choosing an offer. If you are comparing protein powders, also check whether you want a casein product or a different protein type.






