Mutant Mass Extreme 2500 - 2.72kg / Cookies & Cream - Weight Gainer Powder

Mutant Mass Extreme 2500

2.72kg / Cookies & Cream
Sale price  £25.99 Regular price £33.99
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Mutant Mass Extreme 2500 - 2.72kg / Cookies & Cream - Weight Gainer Powder

Mutant Mass Extreme 2500

Sale price  £25.99 Regular price £33.99
Free Delivery When You Spend £100
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FOR SAME DAY DISPATCH
  • Hit an effortless surplus: up to 2,540 extra calories daily from two smooth, easy-to-drink shakes.
  • Triple‑source whey protein feeds muscles fast and over time to support repair and growth.
  • High‑carb fuel (255 g per shake with 1% milk) to reload glycogen and power intense training.
  • Rich Vanilla Ice Cream flavour that mixes lump‑free and feels light on the stomach.
  • Built for hard gainers—reliable calories between meals, post‑workout, or before bed.

Mutant Mass Extreme 2500: High‑Calorie Mass Gainer for Relentless Size

If you burn through meals and the scale barely moves, you don’t need another basic protein—you need serious, convenient calories you can stay consistent with. Mutant Mass Extreme 2500 is a heavyweight mass gainer powder created for extreme hard gainers who want a dependable calorie surplus and a shake they’ll actually enjoy drinking every day.

Blend one serving with two cups of 1% milk and you get a colossal 1,270 calories, 46 g protein, 255 g carbohydrates, and 7.5 g fats. Two shakes deliver a huge 2,540 extra calories—the kind of surplus that pairs perfectly with heavy training and steady recovery.

Why Lifters Choose Mutant Mass Extreme 2500

  • 3‑Whey Protein Matrix: A triple-source whey blend delivers rapid and sustained amino acids to support muscle repair and growth around the clock.
  • Carb‑Forward Energy: A high carbohydrate load helps drive performance today and replenishes glycogen so you can come back stronger tomorrow.
  • Mixes in Seconds: Ultra-smooth texture with no clumps and no heavy bloat—great with water, even better with milk.
  • Anytime Calories: Slot it in post‑workout, between meals, or pre‑bed to keep your daily intake consistently high.
  • Stacks Easily: Ideal alongside creatine, a pre‑workout, and omega‑3s for a well‑rounded bulking routine.

Who It’s For

Hard gainers, athletes in a bulking phase, and fast‑metabolism lifters who struggle to eat enough will all benefit from this high‑calorie weight gainer. If your training is intense but your appetite can’t keep up, Mutant Mass Extreme 2500 makes hitting your target calories simple and repeatable.

Flavour & Mixability

Vanilla Ice Cream flavour that’s thick, creamy, and genuinely satisfying in milk—yet still tasty in water. No chalkiness, no grit—just a shake you’ll look forward to, day after day.

How to Use for Best Results

  • Post‑workout: Have one shake to jump‑start recovery and refill glycogen.
  • Between meals or before bed: Add a second shake to lock in a reliable surplus.
  • Pair with progressive training, quality sleep, and balanced meals for measurable progress.

Brand: Mutant | Product: Mutant Mass Extreme 2500 | Barcode (UPC): 811662029502

Ingredients

Ingredients: Cholesterol, Sodium, Vitamin D, Calcium, Iron, Potassium, Vitamin C, KEY AMINO ACIDS AND ENZYMES, L-Glutamine and Glutamic Acid (as protein), L-Leucine (as protein), L-Isoleucine (as protein), L-Valine (as protein), Enzyme Blend (Lactase, Protease).

Directions

Recommended use: Add 15.9 fl oz (475ml) of water to a shaker cup or blender and then add 1 serving (4 scoops) of powder; Shake or blend for 15-20 seconds and enjoy! Enjoy 1-2 servings per day, or however you prefer. Tastes amazing in water - tastes even better in 1% milk! Always add liquid first then add powder. Using non-fat or low-fat milk instead of water will give you a thicker, creamier, higher-protein, higher-calorie shake. To decrease the thickness or sweetness, simply add more liquid.

Warnings

Warnings: This product is intended to be used as a food supplement by healthy adults. Packed by weight, not by volume. Setting of powder occurs after filling. Keep out of direct light; store in a cool, dry place. Do not use if packaging has been tampered with. Not recommended for children or pregnant or nursing women. Do not exceed the recommended dose. This product is intended to supplement the diet. This product is not to be used as a substitute for a varied diet. A varied and balanced diet or exercise and healthy lifestyle are essential for good health. Should be consumed in conjunction with a nutritious diet and with an appropriate exercise program. Consult a physician before using if you have any ailments or conditions, any product, ingredient or health concerns, or before starting any diet or exercise program. Keep sealed when not in use. Keep out of reach of children.

Protein 30g g
0%
RDI
Fat 3g g
0%
RDI
Values per serving
Please note that this information may be subject to change.
For the most accurate and up-to-date details, please refer to the product packaging.

Serving Size

285g

Expiry

2.72kg / Cookies & Cream 01-12-2028
2.72kg / Triple Chocolate 10-12-2028
5.45kg / Cookies & Cream 16-12-2028
5.45kg / Triple Chocolate 27-10-2028
5.45kg / Vanilla Ice Cream 29-10-2028

Barcodes

2.72kg / Cookies & Cream 811662029502
2.72kg / Triple Chocolate 811662029496
2.72kg / Vanilla Ice Cream 811662029489
5.45kg / Cookies & Cream 811662029533
5.45kg / Triple Chocolate 811662029526
5.45kg / Vanilla Ice Cream 811662029519

Directions

Add 15.9 fl oz (475ml) of water to a shaker cup or blender and then add 1 serving (4 scoops) of powder; Shake or blend for 15-20 seconds and enjoy! Enjoy 1-2 servings per day, or however you prefer. Tastes amazing in water - tastes even better in 1% milk! Always add liquid first then add powder. Using non-fat or low-fat milk instead of water will give you a thicker, creamer, higher protein, higher calorie shake. To decrease the thickness or sweetness, simply add more liquid.

Warnings

This product is itended to be used as a food supplement by healthy adults. Packed by weight, not by volume. Setting of powder occurs after filling. Keep out of direct light; store in a cool, dry place. Do not use if packaging has been tampered with. Not recommended for children or pregnant or nursing woman. Do not exceed the recommended dose. This product is intended to be used to supplement the diet. This product is not to be used as substitute for a varied diet. A varied and balanced diet or exercise and healthy lifestyle are essential for good health. Should be consumed in conjunction with a nutritious diet and with an appropriate exercise program. Consult a physician before using if you have any ailments or conditions; have any product, ingredients or health concerns; or before starting any diet or exercise program. Keep sealed when not in use. Keep out of reach of children.

Ingredients

  • Please Note: Nutritional facts and ingredients may vary slightly between flavours.
  • 5 stars: 30 (75%)
  • 4 stars: 5 (13%)
  • 3 stars: 5 (13%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
O
Oliver Smith
Vhhgvvi

The better one as i found the normal one has a chemical taste. I also appreciate it doesn't contain vitamins and minerals which most powders do as I need to drink 4 a day and dont want to overdo the vitamins.

O
Oliver Smith
Vhhgvvi

The better one as i found the normal one has a chemical taste. I also appreciate it doesn't contain vitamins and minerals which most powders do as I need to drink 4 a day and dont want to overdo the vitamins.

S
Sam
Perfect if you are skinny and don't like eating.

This is the real deal, 100% whey and a blend of carbohydrates totaling a whopping 1200+ kcal a serving. One serving has 250g of carbs! If you can't gain of this go get tested for tape worm.

Mixes okay if you add enough liquid, tastes okay but I'm not a big chocolate fan, price more than makes up for it.

I will probably split 1 serving into two because a full serving is just to much right now, I can feel it sat in my stomach getting broke down into goodness for my body to use.

I got this on offer which rounds up to be about £2.20 per serving. Good value in my opinion is £1 per 25g of protein. And this goes beyond that with the carbs included.

S
Suzie P
Good All-rounder

My husband takes this as an extra meal at the end of his working day, he has an active job so it helps as a filler before his evening meal. It's one of the good ones as it's low in sugar. Cookies and Cream is the best flavour by far! The refill packs are also really convenient.

D
David Glendinning
Best tasting one I've found

Really nice when mixed with semi skimmed milk, best one I've ever used. Bargain price with plenty of calories

A
Alex
Good value for money.

For the weight of this bag it's good value for money. Meets my required nutritional needs for protein and carbs and slightly cheaper than some other brands. Not lumpy and mixes well (I've only ever added water) Only negative for me is that it's a little too sweet. Perhaps those artificial sweeteners have gone a little overboard but more than bearable. Like any new shakes, it takes time to get used to!

S
Sam
Perfect if you are skinny and don't like eating.

This is the real deal, 100% whey and a blend of carbohydrates totaling a whopping 1200+ kcal a serving. One serving has 250g of carbs! If you can't gain of this go get tested for tape worm.

Mixes okay if you add enough liquid, tastes okay but I'm not a big chocolate fan, price more than makes up for it.

I will probably split 1 serving into two because a full serving is just to much right now, I can feel it sat in my stomach getting broke down into goodness for my body to use.

I got this on offer which rounds up to be about £2.20 per serving. Good value in my opinion is £1 per 25g of protein. And this goes beyond that with the carbs included.

D
David Glendinning
Best tasting one I've found

Really nice when mixed with semi skimmed milk, best one I've ever used. Bargain price with plenty of calories

L
Liam
Not so much gourmet taste for me

For me the taste of the shake is absolutely vital and I find this shake very quite bland, and with water I struggle to drink it at all. I wish I had gone for banana as it's always a much stronger flavour. I’m struggling to get through 5kgs :-( I don't doubt it's performance it's just I’m going to struggle seeing any gains if I can't drink it.

S
Suzie P
Good All-rounder

My husband takes this as an extra meal at the end of his working day, he has an active job so it helps as a filler before his evening meal. It's one of the good ones as it's low in sugar. Cookies and Cream is the best flavour by far! The refill packs are also really convenient.

S
Sam
Perfect if you are skinny and don't like eating.

This is the real deal, 100% whey and a blend of carbohydrates totaling a whopping 1200+ kcal a serving. One serving has 250g of carbs! If you can't gain of this go get tested for tape worm.

Mixes okay if you add enough liquid, tastes okay but I'm not a big chocolate fan, price more than makes up for it.

I will probably split 1 serving into two because a full serving is just to much right now, I can feel it sat in my stomach getting broke down into goodness for my body to use.

I got this on offer which rounds up to be about £2.20 per serving. Good value in my opinion is £1 per 25g of protein. And this goes beyond that with the carbs included.

L
Liam
Not so much gourmet taste for me

For me the taste of the shake is absolutely vital and I find this shake very quite bland, and with water I struggle to drink it at all. I wish I had gone for banana as it's always a much stronger flavour. I’m struggling to get through 5kgs :-( I don't doubt it's performance it's just I’m going to struggle seeing any gains if I can't drink it.

L
Liam
Not so much gourmet taste for me

For me the taste of the shake is absolutely vital and I find this shake very quite bland, and with water I struggle to drink it at all. I wish I had gone for banana as it's always a much stronger flavour. I’m struggling to get through 5kgs :-( I don't doubt it's performance it's just I’m going to struggle seeing any gains if I can't drink it.

A
Alex
Good value for money.

For the weight of this bag it's good value for money. Meets my required nutritional needs for protein and carbs and slightly cheaper than some other brands. Not lumpy and mixes well (I've only ever added water) Only negative for me is that it's a little too sweet. Perhaps those artificial sweeteners have gone a little overboard but more than bearable. Like any new shakes, it takes time to get used to!

S
Sam
Perfect if you are skinny and don't like eating.

This is the real deal, 100% whey and a blend of carbohydrates totaling a whopping 1200+ kcal a serving. One serving has 250g of carbs! If you can't gain of this go get tested for tape worm.

Mixes okay if you add enough liquid, tastes okay but I'm not a big chocolate fan, price more than makes up for it.

I will probably split 1 serving into two because a full serving is just to much right now, I can feel it sat in my stomach getting broke down into goodness for my body to use.

I got this on offer which rounds up to be about £2.20 per serving. Good value in my opinion is £1 per 25g of protein. And this goes beyond that with the carbs included.

O
Oliver Smith
Vhhgvvi

The better one as i found the normal one has a chemical taste. I also appreciate it doesn't contain vitamins and minerals which most powders do as I need to drink 4 a day and dont want to overdo the vitamins.

V
Vexs
MUST BE IF YOU WANT TO GAIN!!!

Good mass gainers , works great gained 8 pounds in 5 weeks having one in the morning and one before bed with milk and gym4-5 days a week great buy !!!! Forever buying this as it WORKS!!!

D
David Glendinning
Best tasting one I've found

Really nice when mixed with semi skimmed milk, best one I've ever used. Bargain price with plenty of calories

S
Suzie P
Good All-rounder

My husband takes this as an extra meal at the end of his working day, he has an active job so it helps as a filler before his evening meal. It's one of the good ones as it's low in sugar. Cookies and Cream is the best flavour by far! The refill packs are also really convenient.

L
Liam
Not so much gourmet taste for me

For me the taste of the shake is absolutely vital and I find this shake very quite bland, and with water I struggle to drink it at all. I wish I had gone for banana as it's always a much stronger flavour. I’m struggling to get through 5kgs :-( I don't doubt it's performance it's just I’m going to struggle seeing any gains if I can't drink it.

V
Vexs
MUST BE IF YOU WANT TO GAIN!!!

Good mass gainers , works great gained 8 pounds in 5 weeks having one in the morning and one before bed with milk and gym4-5 days a week great buy !!!! Forever buying this as it WORKS!!!

J
J
Awesome

Super tasty and really packs the flavours. Smooth texture and easy to digest. Only had it for a couple of days, but already seeing improvements in performance and muscle size!

L
Liam
Not so much gourmet taste for me

For me the taste of the shake is absolutely vital and I find this shake very quite bland, and with water I struggle to drink it at all. I wish I had gone for banana as it's always a much stronger flavour. I’m struggling to get through 5kgs :-( I don't doubt it's performance it's just I’m going to struggle seeing any gains if I can't drink it.

S
Suzie P
Good All-rounder

My husband takes this as an extra meal at the end of his working day, he has an active job so it helps as a filler before his evening meal. It's one of the good ones as it's low in sugar. Cookies and Cream is the best flavour by far! The refill packs are also really convenient.

D
David Glendinning
Best tasting one I've found

Really nice when mixed with semi skimmed milk, best one I've ever used. Bargain price with plenty of calories

S
Sam
Perfect if you are skinny and don't like eating.

This is the real deal, 100% whey and a blend of carbohydrates totaling a whopping 1200+ kcal a serving. One serving has 250g of carbs! If you can't gain of this go get tested for tape worm.

Mixes okay if you add enough liquid, tastes okay but I'm not a big chocolate fan, price more than makes up for it.

I will probably split 1 serving into two because a full serving is just to much right now, I can feel it sat in my stomach getting broke down into goodness for my body to use.

I got this on offer which rounds up to be about £2.20 per serving. Good value in my opinion is £1 per 25g of protein. And this goes beyond that with the carbs included.

D
David Glendinning
Best tasting one I've found

Really nice when mixed with semi skimmed milk, best one I've ever used. Bargain price with plenty of calories

J
J
Awesome

Super tasty and really packs the flavours. Smooth texture and easy to digest. Only had it for a couple of days, but already seeing improvements in performance and muscle size!

S
Suzie P
Good All-rounder

My husband takes this as an extra meal at the end of his working day, he has an active job so it helps as a filler before his evening meal. It's one of the good ones as it's low in sugar. Cookies and Cream is the best flavour by far! The refill packs are also really convenient.

J
J
Awesome

Super tasty and really packs the flavours. Smooth texture and easy to digest. Only had it for a couple of days, but already seeing improvements in performance and muscle size!

V
Vexs
MUST BE IF YOU WANT TO GAIN!!!

Good mass gainers , works great gained 8 pounds in 5 weeks having one in the morning and one before bed with milk and gym4-5 days a week great buy !!!! Forever buying this as it WORKS!!!

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