Optimum Nutrition: Serious Mass

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Serious Mass 5.45kg/12lb Chocolate Peanut Butter

Details

Calorie dense weight gainer with vitamins and minerals

Goal: Build Muscle

  • Over 1,200 calories in a serving
  • High carbohydrate formula is perfect for the chronically underweight
  • Protein blend ensures sustained delivery of protein throughout the day
  • Easy to digest formula means you can consume more calories through the day compared to a gainer featuring complex carbs
  • Can be used as a post-workout as well as every day use as a weight gainer
  • Creatine and glutamine enhance strength, endurance and recovery from exercise
  • Includes a vitamin and mineral blend to support general health
£41.99

Price per serving: £2.62

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Nutrition

Optimum Nutrition Serious Mass 5.45kg - Chocolate Peanut Butter
Serving Size: 2 Heaped Scoops (330g)
Servings Per Container: 16
  Amount Per Serving %DV**
Energy 1259kcal  
Fat 5.3g 8%
Of Which Saturates 3.1g 15%
Carbohydrate 252g 97%
Of Which Sugars 26g 29%
Fibre 2.4g  
Protein 50g 100%
Salt 1.91g 32%
Vitamin A 303mcg 38%
Vitamin D 1.9mcg 38%
Vitamin E 3.7mg 31%
Vitamin C 22mg 28%
Thiamin 0.52mg 47%
Riboflavin 0.61mg 44%
Niacin 6.9mg 43%
Vitamin B6 0.74mg 53%
Folic Acid 71.6mcg 36%
Vitamin B12 0.46mcg 18%
Biotin 55mcg 110%
Pantothenic Acid 2.2mg 37%
Potassium 1360mg 68%
Chloride 1110 138%
Calcium 407mg 51%
Phosphorus 596mg 85%
Magnesium 66.6mg 18%
Iron 9.2mg 65%
Zinc 4.1mg 41%
Copper 0.85mh 85%
Manganese 0.59mg 29%
Selenium 11mcg 20%
Chromium 140mcg 355%
Iodine 51mcg 34%
Sodium 763mg  
 
     
 
Ingredients: Maltodextrin, Whey Protein Concentrate*, Calcium Caseinate*, (Emulsifier: Soy Lecithin), Fat-Reduced Cocoa Powder (2.3%), Flavouring, Minerals (Sodium Chloride, Dipotassium Phosphate, Ferric Pryophosphate, Zinc Oxide, Cupric Gluconate, Manganese Sulfate, Chromium III Chloride Hexahydrate, Potassium Iodide), Egg Albumin, Medium Chain Triglycerides, Creatine Monohydrate, Choline Bitartrate, L-Glutamine, Glutamine Peptides [Wheat], Whey Powder*, Inositol, Vitamin Blend (L-Ascorbic Acid, Nicotinamide, DL-Alpha-Tocopheryl Acetate, Calcium D-Pantothenate, Pyridoxine Hydrochloride, Riboflavin, Thiamin Hydrochloride, Retinyl Acetate, Pteroylmonoglutamic Acid, D-Biotin, Cholecalciferol, Cyanocobalamin), Sweetener (Sucralose). * From Milk
 
Allergen Warning: Contains: Gluten, Egg, Milk and Soy (Lecithin). May Contain: Peanuts, Nuts.
KEEP OUT OF REACH OF CHILDREN

Directions For Use

Take up to 3 servings of Serious Mass daily. Simply mix up 2 scoops with milk or water in your ON shaker and enjoy between meals, post-workout and/or before bed.
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Why

Serious Mass is a high calorie weight gainer which should be used only by someone seeking rapid weight gains. The high ratio of carbohydrates means that it supplies a lot of energy but that comes with the caveat that if you do not train frequently it will not be a good choice for you. On the other hand for people performing a lot of cardio or with superfast metabolisms, Serious Mass supplies calories in an easily digestible form to make weight gain easy.

When

Serious Mass should be reserved for phases where you are trying to gain weight quickly and are happy to accept a modicum of fat gain. Outside of bulking phases those who perform high amounts of cardiovascular activity (which depletes carbohydrates more than weight training) will find this a good post-workout choice.

Who

Serious Mass is a gainer which should be used with caution if you are seeking lean mass gains as the overwhelming number of calories and carbs means that unless you are naturally very skinny you may end up gaining too much fat. On the other hand for the kind of person who claims they can never gain weight no matter how much they eat, Serious Mass will be perfect.

Product Guide

How it Works

Predator Nutrition Serious Mass Review

Optimum Nutrition Serious Mass is a phenomenally popular weight gainer and Optimum's signature product when it comes to addressing the needs of bodybuilders who struggle to gain weight. 

Why Are Simple Sugars Better Than Oats?

Serious Mass is packed full of carbohdyrates to fuel energy requirements, although the source of them, maltodextrin, may raise eyebrows in the quarters where a low GI carb source is preferred. We disagree because for weight gain maltodextrin will lead to faster gastric emptying which will allow for greater overall calorie intake. Using oats, or similar carbohydrate sources would actually make you feel full faster - the last thing needed for the chronically underweight. It is odd to see some people recommend weight gainers based around oats when oats are also recommended to dieters because they keeo you full for longer!

Time-Released Protein Blend

Serious Mass uses a blend of protein sources including whey and milk protein which is ideal for providing a balanced amino acid profile featuring two protein which release at different rates to the body thereby helping to sustain blood amino acid levels at an elevated level helping prevent a situation where your body sacrifices your own muscle for energy.

Safeguards Health

Rapid weight gain sometimes comes at the expense of a healthy diet so Serious Mass includes a combination of fibre to help aid digestion and a vitamin and mineral blend to ensure that users relying heavily on Serious Mass do not shortchange themselves when it comes to ingesting an adequate amount of micronutrients that support better health.

Enhanced Performance and Recovery

While weight gain is all about eating more calories per day than you break down you still need to gain strength in the gym to ensure that the weight you gain is predominantly muscle. Serious Mass includes creatine monohydrate, a natural compound found in trace amounts in red meat which has been the subject of hundreds of peer-reviewed studies showing it can increase performance and build muscle. Serious Mass adds in the recovery catalyst glutamine as well as the neurotransmitters choline and inositol which can help with nerve function and cognitive health. 

 
82%
 9 REVIEWS
Great for packing on the muscle

Doing two scoops straight off the back twice a day with regular meals is definatly not for the weak. I started off 1 scoop just once a day with regular meals then upped it. Now one shake mid morning after breakfast and one before bed.. it does was it says you just have to stay on it!

Good taste, good gains.

My usual go to weight gainer

Top notch

Best tasting and value for money protein mass gainer you can buy.

Serious Mass - Great for hardgainers

For anyone looking to get big fast Serious Mass is well worth a look. Compared to a lot of gainers it is pretty easy on the old stomach but just be careful of using this if you are predisposed to getting fat because it is VERY HIGH in calories!

Serious mass is okay only

Serious mass is a weight gainer which because it's so high in carbs makes it best suited for those with great glucose tolerance or who are seriously underweight. While I added good mass on it, I found it best used at half doses as otherwise the carbs became overwhelming so I ended up adding a little protein to bump up protein and reduce the sickly feeling from too many carbs. Serious mass is probably better for people who have higher training demands than me!

Tastes awful

I have used some products in my time but this is just cheap muck. Taste is awful, doesn't mix properly and is basically just a heavy amount of maltodextrin. I'll stick with my usual gainer.

Very Good

I was looking for a while for a low sugar weight gainer at a good price and since I found Serious Mass and it ticks all the boxes I will stick with this for a while now. Tastes good, mixes up ok and lots of calories for gaining weight quickly.

Does what it says

Tried this after the lads in the gym recommended I change my diet. Within 6 weeks of taking it I noticed much bigger gains than with any other products.

Best all round bulker

I really liked this product, it has a high calorie counts (of which many are carb sourced) and I found the protein content (50g) to be to my liking. Also this is packed with bcaa's and glutamine and creatine (although I would supplement this with extra creatine as the content is low). Ingredients 10/10 Flavour and MixabilitynI enjoyed the banana flavour but found the vanilla a bit too rich and sweet. Mixed fine. ValuenI managed to put on good quality with this product and it's relatively cheap considering most protein retails at double this price for the size. Overall: 9/10

Serious Mass 5.45kg/12lb Chocolate Peanut Butter
Predator Review
Predator Nutrition Serious Mass Review

Optimum Nutrition Serious Mass is a phenomenally popular weight gainer and Optimum's signature product when it comes to addressing the needs of bodybuilders who struggle to gain weight. 

Why Are Simple Sugars Better Than Oats?

Serious Mass is packed full of carbohdyrates to fuel energy requirements, although the source of them, maltodextrin, may raise eyebrows in the quarters where a low GI carb source is preferred. We disagree because for weight gain maltodextrin will lead to faster gastric emptying which will allow for greater overall calorie intake. Using oats, or similar carbohydrate sources would actually make you feel full faster - the last thing needed for the chronically underweight. It is odd to see some people recommend weight gainers based around oats when oats are also recommended to dieters because they keeo you full for longer!

Time-Released Protein Blend

Serious Mass uses a blend of protein sources including whey and milk protein which is ideal for providing a balanced amino acid profile featuring two protein which release at different rates to the body thereby helping to sustain blood amino acid levels at an elevated level helping prevent a situation where your body sacrifices your own muscle for energy.

Safeguards Health

Rapid weight gain sometimes comes at the expense of a healthy diet so Serious Mass includes a combination of fibre to help aid digestion and a vitamin and mineral blend to ensure that users relying heavily on Serious Mass do not shortchange themselves when it comes to ingesting an adequate amount of micronutrients that support better health.

Enhanced Performance and Recovery

While weight gain is all about eating more calories per day than you break down you still need to gain strength in the gym to ensure that the weight you gain is predominantly muscle. Serious Mass includes creatine monohydrate, a natural compound found in trace amounts in red meat which has been the subject of hundreds of peer-reviewed studies showing it can increase performance and build muscle. Serious Mass adds in the recovery catalyst glutamine as well as the neurotransmitters choline and inositol which can help with nerve function and cognitive health. 

 
Customer Reviews
82%
 9 REVIEWS
Great for packing on the muscle

Doing two scoops straight off the back twice a day with regular meals is definatly not for the weak. I started off 1 scoop just once a day with regular meals then upped it. Now one shake mid morning after breakfast and one before bed.. it does was it says you just have to stay on it!

Good taste, good gains.

My usual go to weight gainer

Top notch

Best tasting and value for money protein mass gainer you can buy.

Serious Mass - Great for hardgainers

For anyone looking to get big fast Serious Mass is well worth a look. Compared to a lot of gainers it is pretty easy on the old stomach but just be careful of using this if you are predisposed to getting fat because it is VERY HIGH in calories!

Serious mass is okay only

Serious mass is a weight gainer which because it's so high in carbs makes it best suited for those with great glucose tolerance or who are seriously underweight. While I added good mass on it, I found it best used at half doses as otherwise the carbs became overwhelming so I ended up adding a little protein to bump up protein and reduce the sickly feeling from too many carbs. Serious mass is probably better for people who have higher training demands than me!

Tastes awful

I have used some products in my time but this is just cheap muck. Taste is awful, doesn't mix properly and is basically just a heavy amount of maltodextrin. I'll stick with my usual gainer.

Very Good

I was looking for a while for a low sugar weight gainer at a good price and since I found Serious Mass and it ticks all the boxes I will stick with this for a while now. Tastes good, mixes up ok and lots of calories for gaining weight quickly.

Does what it says

Tried this after the lads in the gym recommended I change my diet. Within 6 weeks of taking it I noticed much bigger gains than with any other products.

Best all round bulker

I really liked this product, it has a high calorie counts (of which many are carb sourced) and I found the protein content (50g) to be to my liking. Also this is packed with bcaa's and glutamine and creatine (although I would supplement this with extra creatine as the content is low). Ingredients 10/10 Flavour and MixabilitynI enjoyed the banana flavour but found the vanilla a bit too rich and sweet. Mixed fine. ValuenI managed to put on good quality with this product and it's relatively cheap considering most protein retails at double this price for the size. Overall: 9/10

Nutrition

Nutrition

Optimum Nutrition Serious Mass 5.45kg - Chocolate Peanut Butter
Serving Size: 2 Heaped Scoops (330g)
Servings Per Container: 16
  Amount Per Serving %DV**
Energy 1259kcal  
Fat 5.3g 8%
Of Which Saturates 3.1g 15%
Carbohydrate 252g 97%
Of Which Sugars 26g 29%
Fibre 2.4g  
Protein 50g 100%
Salt 1.91g 32%
Vitamin A 303mcg 38%
Vitamin D 1.9mcg 38%
Vitamin E 3.7mg 31%
Vitamin C 22mg 28%
Thiamin 0.52mg 47%
Riboflavin 0.61mg 44%
Niacin 6.9mg 43%
Vitamin B6 0.74mg 53%
Folic Acid 71.6mcg 36%
Vitamin B12 0.46mcg 18%
Biotin 55mcg 110%
Pantothenic Acid 2.2mg 37%
Potassium 1360mg 68%
Chloride 1110 138%
Calcium 407mg 51%
Phosphorus 596mg 85%
Magnesium 66.6mg 18%
Iron 9.2mg 65%
Zinc 4.1mg 41%
Copper 0.85mh 85%
Manganese 0.59mg 29%
Selenium 11mcg 20%
Chromium 140mcg 355%
Iodine 51mcg 34%
Sodium 763mg  
 
     
 
Ingredients: Maltodextrin, Whey Protein Concentrate*, Calcium Caseinate*, (Emulsifier: Soy Lecithin), Fat-Reduced Cocoa Powder (2.3%), Flavouring, Minerals (Sodium Chloride, Dipotassium Phosphate, Ferric Pryophosphate, Zinc Oxide, Cupric Gluconate, Manganese Sulfate, Chromium III Chloride Hexahydrate, Potassium Iodide), Egg Albumin, Medium Chain Triglycerides, Creatine Monohydrate, Choline Bitartrate, L-Glutamine, Glutamine Peptides [Wheat], Whey Powder*, Inositol, Vitamin Blend (L-Ascorbic Acid, Nicotinamide, DL-Alpha-Tocopheryl Acetate, Calcium D-Pantothenate, Pyridoxine Hydrochloride, Riboflavin, Thiamin Hydrochloride, Retinyl Acetate, Pteroylmonoglutamic Acid, D-Biotin, Cholecalciferol, Cyanocobalamin), Sweetener (Sucralose). * From Milk
 
Allergen Warning: Contains: Gluten, Egg, Milk and Soy (Lecithin). May Contain: Peanuts, Nuts.
KEEP OUT OF REACH OF CHILDREN
Directions For Use
Take up to 3 servings of Serious Mass daily. Simply mix up 2 scoops with milk or water in your ON shaker and enjoy between meals, post-workout and/or before bed.
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