Origin Mass Gainer

by MyProtein

Calories that count: a high-protein, high-carb formula built for serious muscle and weight gain.

Up to 33g protein per serving
High calorie for bulking phases
For shakes, smoothies, baking and more

Choose flavour3 flavours

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

Size2.74kg

Best price

In stock

£38.49

£1.40 / 100g

Secure retailer checkout

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Transparent protein profile

What's inside

Values per 100g, with the amount in one 150g serving

22g protein

33g per 150g serving

60g carbohydrates

90g per 150g serving

4g fat

6g per 150g serving - moderate fat

370 kcal

555 kcal per 150g serving

View full nutritional information

Nutrition per 100g and per 150g serving
Nutrient	Per 100g	Per serving (150g)
Protein	22g	33g
Calories	370 kcal	555 kcal
Carbohydrates	60g	90g
Fat	4g	6g

Know when to buy

Price history

Lowest price on record, any flavour or size

£1.09/100g (£30.00 for 2.74kg on 16 Sept 2026)

2.74kg · all flavours · price per pack

MyProteinlatest £38.49, lowest £30.00, highest £44.49 in the last 90 days

Quick answers

Is this right for you?

Who is it for?

MyProtein Origin Mass Gainer is designed for hard-gainers and anyone in a dedicated bulking phase who struggles to eat enough calories. Mass gainers combine protein with carbs and calories to support weight gain and muscle growth during intense training blocks.

What can you expect?

A calorie-dense shake designed to help you gain weight. Mass gainers pack protein alongside a significant amount of carbohydrates and calories per serving. Servings tend to be larger than standard protein powders, so expect thicker shakes and bigger scoops. With 22g of protein per 100g (around 33g per 150g serving), MyProtein Origin Mass Gainer sits in a competitive position for a mass gainer product.

What else do you need to know?

MyProtein Origin Mass Gainer is a mass gainer protein powder made by MyProtein. It comes in 2.74kg sizes. 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 Origin Mass Gainer in the UK?

We refresh MyProtein Origin Mass Gainer 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 Origin Mass Gainer contain per 100g?

Origin Mass Gainer contains 22g of protein per 100g, with 33g per 150g serving. It is a mass gainer product.

Is MyProtein Origin Mass Gainer currently in stock?

At the last check, 3 out of 3 tracked variants were in stock. Stock status carries the same fetch time as the price shown above, so check the retailer listing before ordering.