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Optimum Nutrition Serious Mass Weight Gain Powder

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Best seller Optimum Nutrition Serious Mass Weight Gain Powder


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  • All prices mentioned above are in British pound.
  • This product is available at Bodybuilding Warehouse, Amazon.co.uk, Discount Supplements, eBay, Argos, Onbuy, Monster Supplements.
  • At ebay.co.uk you can purchase OPTIMUM NUTRITION SERIOUS MASS 2.73KG for only £18.00, which is 54% less than the cost in Amazon.co.uk (£38.95).
  • The lowest price of Optimum Nutrition Serious Mass Weight Gain Powder, Chocolate, 2.73 kg with a 144g Tub of Creatine was obtained on August 1, 2021 8:02 pm.
Last updated on August 1, 2021 10:22 pm
Optimum Nutrition Serious Mass Weight Gain Powder
Optimum Nutrition Serious Mass Weight Gain Powder

Optimum Nutrition Serious Mass Weight Gain Powder Prices

Price History

Price history for Optimum Nutrition | ON Serious Mass - 2.73kg-Strawberry | Vitamins and Minerals
Latest updates:
  • £23.99 - July 3, 2021
  • £25.99 - June 19, 2021
Since: June 19, 2021
  • Highest Price: £25.99 - June 19, 2021
  • Lowest Price: £23.99 - July 3, 2021


Optimum Nutrition Serious Mass Review

Fitness Savvy took a look online and discovered 5,141 online user reviews for Optimum Nutrition Serious Mass Gainer Weight Gain Powder. Overall, this mass gainer scored 4.2 out of 5, with Chocolate Peanut Butter being the most liked flavour. Users were pleased with the macro profile, high-calorie content and mixability. Negative remarks include a chemical taste, oversized scoop and poor mixability of the strawberry flavour.

  • Easily add weight using this product
  • Great macro profile
  • High calories
  • Mixes well with water
  • Fantastic as a meal replacement

  • Some people note that the strawberry flavour doesn’t mix as well as others such as vanilla or banana
  • A few users reported stomach ache side effects
  • Several users thought it had a “chemical” taste to it
  • Scoop is huge and might make adding it to your shaker difficult

Optimum Nutrition Serious Mass Weight Gain Videos

Why Choose Optimum Nutrition Serious Mass?

Some people struggle to add weight. This can be particularly troublesome if you’re looking to bulk up and add some serious muscle mass. It’s certainly not uncommon for some of these individuals (often referred to as hard gainers, or ectomorphs) to lose weight while trying to get big!

If this is you, you’re probably looking for a high-calorie weight gain supplement to help you out. Optimum Nutrition’s Serious Mass is far from disappointing when you look at calorie content – over 1,250 per serving! But is this the best one for you?

With so many mass gainer supplements on the market, we’ve worked hard to highlight what makes this product great. As you would probably expect, there are excellent reasons for why Serious Mass weight gainer is so popular:

1250 Calories Per Serving

When mixed with water, Serious Mass protein powder contains a whopping 1,250 calories! Insane, we know. But the fun doesn’t stop there: If you’re not impressed, and still looking to increase your calories seriously, then just mix with low-fat milk. This takes the total to a staggering 1640 calories per serving!

250g of High GI, Fast-Acting Carbohydrates

Slow-release carbs such as oats will fill you up quicker. If you’re a hard gainer, this is the last thing you want! Also, research shows that fast-acting, high GI carbs are preferable, post-workout, to promote glycogen uptake by muscles. The result is that the energy will be stored in muscle cells to be used exclusively by the muscle.

24 Vitamins & Minerals

There is no point in adding another 1,250 calories to your daily intake without increasing essential vitamins and minerals. You’ll be glad to hear that Optimum Nutrition Serious Mass contains 24 all-important vitamins and minerals, to ensure your body can properly process the macronutrients. Check out the Nutrition tab to find out more about the levels contained.

Recovery & Performance Enhancing Formula

If you’re looking to maximise your muscle-building capabilities, you should consider what other vital ingredients are in your weight gainer, or all in one protein powder.

ON Serious Mass Gainer includes creatine (proven to increase performance), l-glutamine & Glutamine Peptides (increase protein synthesis), as well as well-researched neurotransmitters such as Choline and Inositol, and MCTs (medium-chain triglycerides) for increased fat breakdown

50g of Blended Protein Per Serving

For typical protein shakes, the protein per serving is usually the most essential thing to consider. With a mass gainer, protein is still crucial, but we believe the ingredients mentioned earlier are the most important to consider.

However, this product contains a decent blend of whey protein concentrate, calcium caseinate, and egg protein.

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Alternative Optimum Nutrition Whey Protein

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How & When to Take Serious Mass

Add two heaped scoops of Serious Mass to a blender filled with 710 ml of water. Blend for 45-60 seconds. Then add a few ice cubes and, if desired, other calorie-contributing ingredients and blend for an additional 30-45 seconds.

Tips: Mixing two scoops of Serious Mass with 710 ml of non-fat or low-fat milk instead of water will give you a thicker, creamier, higher-calorie shake. New users may find it beneficial to begin with 1/2 of a serving daily for the first week and then gradually increase to 1 or more full servings several times a day.

Serious Mass is a substantial weight-gain supplement that can be used to feed serious calorie needs in a variety of different ways.

Between Meals: Drink 1/2 – 1 serving of Serious Mass between meals to maintain positive nitrogen balance and support a high-calorie diet.

Post-Workout: Begin drinking 1/2-1 serving of Serious Mass 30-45 minutes following exercise to support maximum recovery.

Before Bed: Drink 1/2 – 1 serving of Serious Mass about 45-60 minutes before bed to provide nutrients to recovering muscle throughout the night.

Note: For best results use Serious Mass combined with intense weight training (3-5 times per week) and a sensible whole foods diet. Also, keep in mind that sufficient recovery between workouts impacts your ability to gain lean mass. Allowing at least 48 hours between workouts involving the same body parts is recommended.

Alternative Mass Gainers

It’s no surprise that mass gainers come in all shapes and forms. Compare prices and read reviews of suitable alternatives listed below.

Additional information

Specification: Optimum Nutrition Serious Mass Weight Gain Powder

Primary Protein Form Blend
Brand Optimum Nutrition
Flavour Banana, Chocolate, Chocolate Mint, Chocolate Peanut Butter, Cookies & Cream, Strawberry, Vanilla
Servings 16
Carbs Per Serving 252 g
Dietary Vegetarian
Creatine Per Serving 1
Calories Per Serving 1250
Fat Per Serving 4.5 g
Glutamine Per Serving 1
Macro Ratio (Protein, Carbs, Fat) 16/81/3
Protein Per Serving 50 g
Size 5.45 kg

Optimum Nutrition Serious Mass Weight Gain Powder Videos

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