One-time purchase:
£37.59 (£1.38 / 100 g)
Subscribe & Save: Save 5%
£35.71 (£1.31 / 100 g)
Other Sellers on Amazon
Add to Basket
£31.67 (£1.16 / 100 g)
+ £3.95 UK delivery
Sold by: SNCDirect
Add to Basket
£36.53 (£1.34 / 100 g)
+ FREE UK delivery
Sold by: Peak Health Supplies
Add to Basket
£37.98 (£1.40 / 100 g)
+ FREE UK delivery
Sold by: Best4Deals

Image Unavailable

Image not available for
Colour:
  • Sorry, this item is not available in
  • Image not available
      

Optimum Nutrition Serious Mass 2727 g Chocolate Weight Gain Powder


RRP: £41.99
Price: £37.59 (£1.38 / 100 g) & FREE Delivery in the UK. Details
You Save: £4.40 (10%)
In stock.
Dispatched from and sold by Amazon. Gift-wrap available.
19 new from £31.67
Chocolate
2720 g
  • If you find it difficult to gain weight, Serious Mass can help you
  • Each delicious shake delivers 1,250 calories with no added sugar
  • Each serving contains 50 g of blended protein and 250 g of carbohydrate

Pay as low as £31.95 (£1.17 / 100 g) and never run out with Subscribe & Save.
Save 5% when you subscribe to regular deliveries of this item. Save 15% on your entire delivery when you subscribe to 5 or more items that arrive in the same month. No commitments, no obligations, and delivery is FREE. Learn more
Rated 18 Not for sale to persons under the age of 18. By placing an order for this product, you declare that you are 18 years of age or over. This item must be used responsibly and appropriately.

Frequently Bought Together

Optimum Nutrition Serious Mass 2727 g Chocolate Weight Gain Powder + MaxiMuscle 700 ml Shaker
Price For Both: £44.76

These items are dispatched from and sold by different sellers.

Buy the selected items together
  • MaxiMuscle 700 ml Shaker £7.17 (£4.78 / 100 g)


Special Offers and Product Promotions

Other Product Promotions:

Important Information

Legal Disclaimer:
Unless expressly indicated otherwise, Amazon.co.uk is not the manufacturer of the products sold on this site. Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented on our website. Please always read labels, warnings, and directions provided with the product before using or consuming the product. Please see our full disclaimer below.

Product Description

Flavour: Chocolate | Size: 2720 g

Product Description

Optimum Nutrition's Serious Mass is the ideal weight gain formula. If you find it difficult to gain weight, Serious Mass could help. Each delicious shake delivers an incredible 1,250 calories, with no added sugar. This includes 50 grams of blended protein to support building muscle and 250 grams of carbohydrates to fuel your workouts. To make your shake, simply mix up 2 scoops of Serious Mass powder with milk or water in your ON shaker and enjoy between meals, post-workout and/or before bed.

Ingredients

Maltodextrin, Protein Blend (Whey Protein Isolate, Whey Protein Concentrate, Calcium Caseinate, Egg Albumin, Hydrolyzed Whey Peptides, Glutamine Peptides), Cocoa (Processed With Alkali), Lipid Blend (Medium Chain Triglycerides, High Oleic Sunflower Oil), Partially Hydrogenated Guar Gum, Natural And Artificial Flavors, Lecithin, Vitamin/Mineral Blend (DiMagnesium Phosphate, Calcium Carbonate, Tricalcium Phosphate, Maltodextrin, Ascorbic Acid, Ferric Orthophosphate, Molybdenum AA Chelate, D-Alpha Tocopheryl Acetate, Boron Proteinate, Niacinamide, Zinc Oxide, Manganese Sulfate, D-Calcium Pantothenate, Selenomethionine, Pyridoxine Hydrochloride, Vitamin A Palmitate, Cupric Oxide, Chromium Polynicotinate, Thiamin Hydrochloride, Riboflavin, Beta Carotene, Folic Acid, Biotin, Potassium Iodide, Cyanocobalamin), Salt, Carbogen®, Aminogen®, Sucralose, Acesulfame Potassium, Lactase.

Product details

Flavour: Chocolate | Size: 2720 g
  • Product Dimensions: 15.2 x 12.7 x 10.2 cm ; 2.7 Kg
  • Boxed-product Weight: 3.3 Kg
  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
  • Item model number: ON-SM-272-02
  • ASIN: B0015R36SK
  • Date first available at Amazon.co.uk: 2 Feb 2008
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (252 customer reviews)
  • Amazon Bestsellers Rank: 1,933 in Health & Personal Care (See Top 100 in Health & Personal Care)
  •  Would you like to give feedback on images?


Customer Questions & Answers

Customer Reviews

4.1 out of 5 stars

Most Helpful Customer Reviews

19 of 20 people found the following review helpful By Muhammad Yusuf Ahmed on 3 May 2013
Flavour Name: ChocolateSize Name: 2720 g Verified Purchase
This product works like magic! I didn't take the recommended daily serving, I took half; simply because - 2 servings in one sitting is just too much. Yet due to the half a serving a day I managed to put on 7lbs in about 3 weeks (some fat, no way around that but mostly muscle). 3 weeks is also the same amount of time the product lasted because the serving scooper is HUGE, if you are buying this product, I suggest you invest in the larger version which will be more beneficial on the long run.
On the whole I am very pleased, recommended for all those who wish to gain mass.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
7 of 8 people found the following review helpful By fulltimespy on 7 Jun 2013
Flavour Name: VanillaSize Name: 2720 g Verified Purchase
Taste :
It tastes very good, better than any other shake I had before.

Mixing :
I use a 700 ml mixer which is very good for mixing the huge amount (2 scoops).

Results :
I gained 5 kilo using 2 boxes of serious mass, in only 2 weeks using the recommended amount.
2 scoups in the morning and after workout.
Went from 75 to 80 kg in just 2 weeks, which is a great result.
Gained more strenght which will help me in gaining muscle faster.

Tip:
Eat first than have your shake.
Because the shake will make you feel full instantly.

The negative :
If you use the recommended amount you will run out very fast.

Will i buy this again ?

Yes, I just bought 2 x 5,4 kg bags.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
5 of 6 people found the following review helpful By M. MASTERS on 13 Oct 2013
Flavour Name: ChocolateSize Name: 5440 g Verified Purchase
I bought this as it was around £45. I use this product daily and have so far gained a whole stone.
Very good product!!
Can be a heavy to eat 1250cals all at once if your no used to it.
I like to have two a day of half the amount. I do however add peanut butter and yoghurt. This then works out to about 800 to 900 cals per half the drink between 1600 to 1800 cals a day. =) Yum!
I like that taste "Chocolate".
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
1 of 1 people found the following review helpful By mike on 24 May 2013
Flavour Name: StrawberrySize Name: 5440 g
Really good, taste is lovely. By far one off if not the best shakes I have tried, and I have had a few different ones
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
1 of 1 people found the following review helpful By Aftab Ahmed on 18 April 2013
Flavour Name: StrawberrySize Name: 5440 g Verified Purchase
I've only had it for a while but this is definately one of the best out there. Good Value and BIG BIG servings!!!
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
9 of 11 people found the following review helpful By Shah on 5 April 2012
Flavour Name: ChocolateSize Name: 5440 g Verified Purchase
Excellent Service!!! No doubt!!! The best thing they dont mention that give free gifts...!!! Got a cool shaker, 2 more packs of fibers and muscle constructor...!! Awesome service!!!
2 Comments Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
Flavour Name: VanillaSize Name: 5440 g
First time buying protein shake, if your going gym and looking to gain weight fast then this is for you, will last for a long time depending on your intake.

I supercharge it with, 3 tbsp of peanut butter, half a glass of olive oil, full fat milk and sometimes half a tub of ice cream. You need a large shake bottle to drink it and I recommend using mixer or a blender. If you supercharge it you will already go way above 2500+ calories plus your daily food which wil add another 2000 or more to your calorie intake.

If you have a fast metabolism and want to bulk FAST, this is for you. This will also save you money.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
Flavour Name: StrawberrySize Name: 5440 g Verified Purchase
Wow this is the best product if you want to gain some mucsle mass really it is great i wish i could continue to use it but it had some bad side effects fo me personally after a week of using it i started to get an itch on my neck i thought i was a small cut so left it a week later it turned into a massive rash also to add to this i started to just breakout in spots on my face i swapped to usn and a week later everything was gone dont get me wrong i love this product it was the best and it gave me the best gains of any product ive used i would recommend it to everyone the side effect might just be personal to me
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again

Most Recent Customer Reviews

Amazon EU S.a.r.l. is certified organic according to EU Organic Food regulations by the control body LU-BIO-04
Disclaimer: While we work to ensure that product information on our website is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our website. All information about the products on our website is provided for information purposes only. We recommend that you do not solely rely on the information presented on our website. Please always read the labels, warnings, and directions provided with the product before using or consuming a product. In the event of any safety concerns or for any other information about a product please carefully read any instructions provided on the label or packaging and contact the manufacturer. Content on this site is not intended to substitute for advice given by medical practitioner, pharmacist, or other licensed health-care professional. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements about products are not intended to be used to diagnose, treat, cure, or prevent any disease or health condition. Amazon.co.uk accepts no liability for inaccuracies or misstatements about products by manufacturers or other third parties. This does not affect your statutory rights.