Mega Mass 4000 Powder
by Weider Nutrition
Calories that count: a high-protein, high-carb formula built for serious muscle and weight gain.
- Up to 30g protein per serving
- High calorie for bulking phases
- For shakes, smoothies, baking and more
FlavourStrawberry
Size3kg
Best price today
In stock£69.38
£2.31 / 100g
Secure retailer checkout
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Transparent protein profile
What's inside
Values per 100g, with the amount in one 150g serving
20g protein
30g per 150g serving
65g carbohydrates
97.5g per 150g serving
4g fat
6g per 150g serving - moderate fat
380 kcal
570 kcal per 150g serving
View full nutritional information
| Nutrient | Per 100g | Per serving (150g) |
|---|---|---|
| Protein | 20g | 30g |
| Calories | 380 kcal | 570 kcal |
| Carbohydrates | 65g | 97.5g |
| Fat | 4g | 6g |
Know when to buy
Price history
Lowest price on record, any flavour or size
£1.84/100g (£55.12 for 3kg on 11 Oct 2026)
3kg · all flavours · price per pack
- Amazon UKlatest £69.38, lowest £55.12, highest £69.63 in the last 90 days
Quick answers
Is this right for you?
Who is it for?
Weider Nutrition Mega Mass 4000 Powder 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 20g of protein per 100g (around 30g per 150g serving), Weider Nutrition Mega Mass 4000 Powder sits in a competitive position for a mass gainer product.
What else do you need to know?
Weider Nutrition Mega Mass 4000 Powder is a mass gainer protein powder made by Weider Nutrition. It comes in 3kg 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 Weider Nutrition Mega Mass 4000 Powder in the UK?
The best price we have verified today is £2.31 per 100g for the 3kg bag, checked 26 Oct 2026. Use the buy button above to go straight to it.
How much protein does Mega Mass 4000 Powder contain per 100g?
Mega Mass 4000 Powder contains 20g of protein per 100g, with 30g per 150g serving. It is a mass gainer product.
Is Weider Nutrition Mega Mass 4000 Powder currently in stock?
At the last check, 1 out of 1 tracked variants was in stock. Stock status carries the same fetch time as the price shown above, so check the retailer listing before ordering.
Pick your pack
1 size · any flavour · cost per 100g for each
Where to buy in the UK
3kg · 1 offer for this selection · sorted by cost per 100g
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