Top 10 Casein Proteins
Our editors analyse the UK's leading casein protein powders, evaluating formulation, nutrition, suitability and value. This guide explains the strengths and limitations of each product to help you choose the best match for your goals.
Editor’s quick picks
- Top pick:Optimum Nutrition Gold Standard 100% Casein
- Best value:PBN Micellar Casein Powder
- Best for flavour range:PBN Micellar Casein Pouch
Gold Standard 100% Casein
Micellar Casein Powder
Micellar Casein Pouch
100% Casein Protein
Bedtime Protein Shake
High Protein Powder
Micellar Casein
Protein – Iced Coffee
Side-by-side comparison
| 🥇 Optimum Nutrition Gold Standard 100% Casein | 🥈 PBN Micellar Casein Powder | 🥉 PBN Micellar Casein Pouch | |
|---|---|---|---|
| Protein (g) | 24 g | 24 g | 23 g |
| Calories | 120 kcal | 107 kcal | 104 kcal |
| Type | Micellar Casein | Micellar Casein | Micellar Casein |
| Texture | Creamy & thick | Smooth & thick | Smooth & thick |
| Sweetener | Acesulfame K & Sucralose | Acesulfame K & Sucralose | Acesulfame K & Sucralose |
| Sugar Level | Low | Low | Low |
| Carbs Level | Low | Low | Low |
| Fat Level | Low | Low | Low |
| Fibre Level | Low | Low | Low |
| Servings | 28 | 66 | 33 |
| Extras | 100% Micellar Casein; Slow digesting & low sugar/fat | Pure Micellar Casein; Vanilla flavour | Micellar Casein in 1 kg bag |
| Value for money | 3.5/5 | 4.0/5 | Best Value 4.5/5 |
| Overall | Excellent | Excellent | Very Good |
| Best for | Lean Goals | All‑Rounder | Budget Pick |
| View Product → | View Product → | View Product → |
Serving figures and supporting notes are based on published product information at the time of writing. Any value-for-money scores shown are editorial judgements, not customer ratings.
FAQs
What is casein protein?
Casein is a slow‑digesting dairy protein powder often used in the evening.
Does it build muscle like whey?
Casein provides protein over a longer period. Choosing between casein and whey depends on your personal preferences and timing.
Is it thicker than whey?
Yes. It often mixes to a thicker, pudding‑like texture if not blended thoroughly.
Can I use it during the day?
Yes. Many people use casein between meals or in recipes like protein puddings.
Want a faster option? Explore the best whey powders for quick absorption and recovery.
See Top Whey Powders →