Optimum Nutrition Gold Standard 100% Isolate vs Myprotein Impact Whey Isolate
Fair comparison based on price per gram of protein, quality and more.
Verdict
Myprotein Impact Whey Isolate is the better deal at £0.048/g vs £0.079/g (39% cheaper).
| Property | ![]() Optimum Nutrition Gold Standard 100% Isolate | ![]() Myprotein Impact Whey Isolate Best value |
|---|---|---|
| Price | £61.55 | £110.99 |
| Weight | 930g | 2700g |
| Price per gram protein | £0.079 | £0.048 |
| Price per kg | £66.18 | £41.11 |
| Protein per shake | 25g | 23g |
| Protein percentage | 83% | 85.19% |
| Calories per shake | 100 kcal | 93 kcal |
| Type | Isolate | Isolate |
| Servings | 31 | 100 |
| Flavors | 2 flavors | 2 flavors |
| Rating | ⭐ 4.8 (4800 reviews) | ⭐ 4.5 (8921 reviews) |
| Lactose free | ✅ Yes | ✅ Yes |
| Sugar free | ❌ No | ✅ Yes |

Optimum Nutrition Gold Standard 100% Isolate
- Price
- £61.55
- Weight
- 930g
- Price per gram protein
- £0.079
- Price per kg
- £66.18
- Protein per shake
- 25g
- Protein percentage
- 83%
- Calories per shake
- 100 kcal
- Type
- Isolate
- Servings
- 31
- Flavors
- 2 flavors
- Rating
- ⭐ 4.8 (4800 reviews)
- Lactose free
- ✅ Yes
- Sugar free
- ❌ No

Myprotein Impact Whey Isolate
Best value- Price
- £110.99
- Weight
- 2700g
- Price per gram protein
- £0.048
- Price per kg
- £41.11
- Protein per shake
- 23g
- Protein percentage
- 85.19%
- Calories per shake
- 93 kcal
- Type
- Isolate
- Servings
- 100
- Flavors
- 2 flavors
- Rating
- ⭐ 4.5 (8921 reviews)
- Lactose free
- ✅ Yes
- Sugar free
- ✅ Yes

Optimum Nutrition Gold Standard 100% Isolate
Ultra-pure whey isolate with 25g protein per serving. Fast-absorbing, low in fat and sugar.
Pros
- ✓ 25g pure whey isolate
- ✓ Fast absorbing
- ✓ Low in fat and sugar
Cons
- ✗ Premium price
Rate this product
Via Optimum Nutrition★4.8(4,800 ratings)
100%Via WheyWijzerNo community ratings yet
0%Is this product good?

Myprotein Impact Whey Isolate
Premium whey isolate from Myprotein. 90% protein, fast absorption.
Pros
- ✓ 90% protein
- ✓ Many flavors
- ✓ Fast delivery
Cons
- ✗ Pricier than concentrate
Rate this product
Via Myprotein★4.5(8,921 ratings)
100%Via WheyWijzerNo community ratings yet
0%Is this product good?
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