MyProtein Impact Whey Protein Powder

Impact Whey Protein Powder

by MyProtein

3.9WheyWise Rating

A trusted everyday protein: affordable, versatile, and designed to support your training goals with every shake.

  • Up to 22g protein per serving
  • For shakes, smoothies, baking and more
Choose flavour57 flavours

Flavour pictures illustrate the taste, not the powder's colour or ingredients.

Choose sizeBest value per 100g: 5kg

Best price

In stock

£108.49

£2.17 / 100g

View best price

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Transparent protein profile

What's inside

Values per 100g, with the amount in one 30g serving

72g protein

21.6g per 30g serving - solid protein content

9g carbohydrates

2.7g per 30g serving - low carb

6g fat

1.8g per 30g serving - moderate fat

383 kcal

115 kcal per 30g serving

View full nutritional information
Nutrition per 100g and per 30g serving
NutrientPer 100gPer serving (30g)
Protein72g21.6g
Calories382.89 kcal115 kcal
Carbohydrates8.9g2.7g
Fat5.9g1.8g

Know when to buy

Price history

Lowest price on record, any flavour or size

£2.17/100g (£108.49 for 5kg on 24 Apr 2026)

5kg · all flavours · price per pack

  • MyProteinlatest £144.49, lowest £144.49, highest £157.49 in the last 90 days
  • Amazon UKlatest £190.00, lowest £190.00, highest £190.00 in the last 90 days

Quick answers

Is this right for you?

Who is it for?

MyProtein Impact Whey Protein Powder is designed for gym-goers and strength trainers looking for an affordable, everyday protein source. Whey concentrate suits anyone who wants a solid protein boost without paying a premium for ultra-high purity. It works well as a post-workout shake or a between-meals top-up.

What can you expect?

A well-rounded protein powder that mixes easily and tastes good. Whey concentrate typically delivers 70-80% protein content with a natural, creamy texture. You will get a reliable source of all essential amino acids including BCAAs to support muscle recovery after training. With 72g of protein per 100g (around 22g per 30g serving), MyProtein Impact Whey Protein Powder sits in a solid mid-range for a whey concentrate product.

What else do you need to know?

MyProtein Impact Whey Protein Powder is a whey concentrate protein powder made by MyProtein. It comes in 500g, 600g, 660g, 1kg, 1.8kg, 1.92kg, 2.5kg, 3.48kg, 4.05kg, 4.35kg, 5kg sizes, and WheyWise tracks prices across 2 UK retailers so you can always find the best deal. Every price on WheyWise is read from the retailer’s own page and re-checked daily and sorted by cost per 100g, so you can see both the cheapest option and how current it is. All links to Amazon and retailer sites are affiliate links - this is how WheyWise stays free.

Frequently asked questions

Where is the cheapest place to buy MyProtein Impact Whey Protein Powder in the UK?

We refresh MyProtein Impact Whey Protein Powder pricing daily from Amazon UK and show the fetch time next to every figure. If no verified price is showing above, we do not currently hold one we would stand behind, and the buy button will take you to the live listing to check.

How much protein does Impact Whey Protein Powder contain per 100g?

Impact Whey Protein Powder contains 72g of protein per 100g, with 21.6g per 30g serving. It is a whey concentrate product.

Is MyProtein Impact Whey Protein Powder currently in stock?

At the last check, 239 out of 249 tracked variants were in stock. Stock status carries the same fetch time as the price shown above, so check the retailer listing before ordering.

Pick your pack

11 sizes · Mocha · cost per 100g for each
UnflavouredCheck Mocha at the retailer
500g
£13.99
£3.01/100g
MyProtein
15 servings · £0.93/serving
21.6g protein · 115 kcal per serving
AcaiCheck Mocha at the retailer
600g
£25.00
£4.17/100g
MyProtein
20 servings · £1.25/serving
21.6g protein · 115 kcal per serving
Chocolat ChocolateCheck Mocha at the retailer
660g
£25.99
£3.94/100g
MyProtein
22 servings · £1.18/serving
21.6g protein · 115 kcal per serving
Mocha
1kg
£25.00
£2.98/100g
MyProtein
28 servings · £0.89/serving
21.6g protein · 115 kcal per serving
Chocolate SmoothCheck Mocha at the retailer
1.8kg
£57.99
£3.22/100g
MyProtein
60 servings · £0.97/serving
21.6g protein · 115 kcal per serving
Flavour not listedCheck Mocha at the retailer
1.92kg
£57.99
£3.02/100g
MyProtein
64 servings · £0.91/serving
21.6g protein · 115 kcal per serving
Mocha
2.5kg
£85.99
£3.41/100g
MyProtein
84 servings · £1.02/serving
21.6g protein · 115 kcal per serving
White Coconut TruffleCheck Mocha at the retailer
3.48kg
£81.49
£2.26/100g
MyProtein
120 servings · £0.68/serving
21.6g protein · 115 kcal per serving
Natural StrawberryCheck Mocha at the retailer
4.05kg
£111.49
£2.75/100g
MyProtein
135 servings · £0.83/serving
21.6g protein · 115 kcal per serving
Salted CaramelCheck Mocha at the retailer
4.35kg
£113.99
£2.62/100g
MyProtein
145 servings · £0.79/serving
21.6g protein · 115 kcal per serving
MochaYour selection
5kgBest value
£108.49
£2.17/100g
MyProtein
166 servings · £0.65/serving
21.6g protein · 115 kcal per serving

The 5kg works out at £2.17 per 100g. The 600g costs £4.17. Same powder, 1.9x the price per gram.

Where to buy in the UK

Mocha · 5kg · 1 offer for this selection · sorted by cost per 100g
MyProteinCheapest

Mocha

5kg£108.49£2.17/100g
In stock

£108.49

5kg · Mocha

View best price