Impact Casein

by MyProtein

Slow-release recovery: a thick, satisfying shake that feeds your muscles over hours, not minutes.

Up to 20g protein per serving
Low fat - under 3g per 100g
Low carb - suitable for keto and cutting diets
Slow-digesting - ideal before bed
For shakes, smoothies, baking and more

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Transparent protein profile

What's inside

Values per 100g, with the amount in one 25g serving

80g protein

20g per 25g serving with minimal filler

4g carbohydrates

1g per 25g serving - low carb

3g fat

0.8g per 25g serving - very lean

370 kcal

93 kcal per 25g serving

View full nutritional information

Nutrition per 100g and per 25g serving
Nutrient	Per 100g	Per serving (25g)
Protein	80g	20g
Calories	370 kcal	93 kcal
Carbohydrates	4g	1g
Fat	3g	0.8g

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Price history

All packs and flavours · price per 100g

No price history for this product in the last 90 days yet.

Quick answers

Is this right for you?

Who is it for?

MyProtein Impact Casein is designed for people who want sustained protein release, especially overnight. Casein digests slowly, making it ideal as a bedtime shake or for anyone who goes long stretches between meals and wants to keep muscle protein synthesis ticking over.

What can you expect?

A thick, slow-digesting shake that keeps you feeling full for longer. Casein forms a gel in the stomach, releasing amino acids steadily over several hours. This makes it less ideal immediately post-workout but excellent for sustained recovery windows. With 80g of protein per 100g (around 20g per 25g serving), MyProtein Impact Casein sits at the higher end for a casein product.

What else do you need to know?

MyProtein Impact Casein is a casein protein powder made by MyProtein.. 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 Casein in the UK?

We refresh MyProtein Impact Casein 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 Casein contain per 100g?

Impact Casein contains 80g of protein per 100g, with 20g per 25g serving. It is a casein product.

Is MyProtein Impact Casein currently in stock?

At the last check, 0 out of 0 tracked variants were in stock. Stock status carries the same fetch time as the price shown above, so check the retailer listing before ordering.