Myprotein Impact Whey Review UK (2026): Is It Still the Best Value?
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Myprotein Impact Whey is Europe’s best-selling protein powder. It’s been the go-to recommendation for years — but is it still worth buying in 2026, or have better options come along? I’ve been using it on and off for years. Here’s the honest verdict.
Quick Summary
| Feature | Detail |
|---|---|
| Protein per serving | 21g |
| Calories per serving | 103 kcal |
| Carbs per serving | 4.5g |
| Fat per serving | 1.9g |
| Serving size | 25g |
| Price (1kg) | £25–35 (sale) / £40–45 (full price) |
| Cost per serving | £0.60–1.10 depending on sale |
| Flavours available | 50+ |
| Type | Whey concentrate |
Taste and Mixability
This varies by flavour, so let me give you the honest breakdown of the most popular ones:
- Chocolate Smooth — the best flavour, full stop. Rich, not too sweet, works well in milk or water. This is what most people buy and for good reason
- Vanilla — pleasant and versatile for adding to oats, smoothies, or baking
- Strawberry Cream — good, slightly artificial but not unpleasant
- Natural Chocolate — less sweet, more subtle. Good if you find most protein powders too sugary
- Unflavoured — mix it with whatever you want. Slightly chalky on its own
Mixability in a shaker: good but not great. You’ll get small clumps if you don’t shake vigorously. In a blender it’s completely smooth. With milk it’s noticeably better than with water.
Nutritional Quality
Impact Whey is a concentrate, not an isolate. Concentrates contain a small amount of lactose and fat alongside the protein — which is why the calorie count is slightly higher than isolates. For most men this is completely fine. If you’re lactose intolerant, you’d want to look at their Impact Whey Isolate instead.
21g of protein per 25g serving is an 84% protein ratio — solid for a concentrate. The amino acid profile is complete and includes a good leucine content (around 2.1g per serving), which is important for muscle protein synthesis.
Value for Money
This is where Impact Whey genuinely wins. Myprotein runs sales constantly — and I mean constantly. Signing up to their email list means you’ll regularly see 30–40% off, bringing 1kg down to around £25. At that price, the cost per serving is around £0.60–0.65. That’s exceptional.
Even at full price (around £40–45 for 1kg), it’s competitive. At sale price, nothing touches it for value in the UK market.
Tip: Sign up for Myprotein emails and wait for a sale before buying. They run them every few weeks. Never pay full price.
How Does It Compare to Competitors?
| Product | Protein/serving | Cost/serving (approx) | Type |
|---|---|---|---|
| Myprotein Impact Whey | 21g | £0.60–1.10 | Concentrate |
| Bulk Whey Protein | 22g | £0.55–0.90 | Concentrate |
| ON Gold Standard | 24g | £1.80–2.20 | Isolate blend |
| PHD Nutrition Whey | 21g | £1.20–1.50 | Concentrate |
Pros and Cons
- ✅ Exceptional value at sale price
- ✅ Huge flavour range — something for everyone
- ✅ Good protein ratio per serving
- ✅ Widely available, fast delivery from UK warehouse
- ✅ Informed Sport certified — tested for banned substances
- ❌ Mixability not as smooth as premium options
- ❌ Concentrate contains lactose — not ideal for dairy-sensitive
- ❌ Quality of flavours varies — some are excellent, some are average
- ❌ Full price is less competitive than sale price
Who Should Buy It?
Impact Whey is the right choice if:
- You want the best value protein in the UK and don’t mind waiting for a sale
- You’re not lactose intolerant
- You want a wide flavour range to avoid boredom
- You’re buying regularly and want to keep costs low
Consider alternatives if:
- You have lactose sensitivity — look at Impact Whey Isolate or ON Gold Standard
- You want the smoothest possible mixability — ON Gold Standard wins there
- You’re buying a one-off and want guaranteed quality — ON is the safer bet
Matt’s Verdict
Impact Whey is still the best value protein powder in the UK in 2026. It’s not perfect — the mixability lags behind premium options and some flavours are better than others — but at sale price it’s almost impossible to beat for a dad who just wants to hit his protein targets without overspending.
Buy Chocolate Smooth. Wait for a sale. You won’t regret it.
Rating: 8.5/10
See also: Best protein powder for men over 40 UK — how Impact Whey compares against all the alternatives.