Top 10 Best Mass Gainers 2020

There are a lot of weight mass gainers available on the market in the UK. but which are the best and which ones are simply not worth your money ?

Mass gainers are designed to help you put on size, even if you are struggling. If you have an Ectomorth body type then you may find it difficult to put on size. You could spend hours working hard in the gym but still not see any gains. The only way for you to put on some good size is to supercharge the amount of calories and protein you are consuming and this is what mass weight gainers will allow you to do. As well as containing protein, weight gainers also contain carbohydrates and a lot of calories.  However even though they may sound similar, they can often contain very different levels of quality.

A lot of bodybuilders will follow cycles of bulking for several months, followed by cutting for several months. This allows you to build muscle through the bulking phase and then strip away fat during the cutting stage to see the results underneath from the muscle you have put on during the bulking phase.

If you are looking to bulk  seriously then its time for you to take a look at mass gainers. Even though you may put on some fat whilst using them, the right one will allow you to focus on putting on muscle quickly.  Take a look at our ten favourite mass gainers for 2019 below.

MyProtein Hard Gainer Extreme

With four different sources of protein and over 440 calories per serving, Hard Gainer Extreme should soon see you putting on some size. Per serving there is 35g of protein. This is a significant amount and a lot more than you would see per serving of a standard whey protein shake. Another essential combination for mass building is a mix of Low and High GI carbohydrates which will be used as energy by the body for building muscle. This shake contains both of them as well as insulin and flax-seed. There is a choice of six flavours available and also the option of or 5kg. The price of Hard Gainer extreme is very competitive compared to some its more expensive rivals. However as you would expect from MyProtein, it is still very high quality. If you are struggling to put on size and looking for a simple mass gainer then this is what you need. MyProtein often have a lot of offers available to so keep an eye out for them on our offers page.

Bulk Powders Informed Mass


Despite not being as big as MyProtein, Bulk Powders has grown in popularity in recent years due to them focusing on quality and price. The Informed range from Bulk Powders is their premium range that is slightly more expensive but the products are some of the most superior on the market; with Informed Mass being no exception. This mass gainer is available in 2 flavours: Strawberries & Cream and double chocolate. Bulk Powders know how good this product is that they offer a money back guarantee on it. per serving there is a huge 45g of protein, which is double what you would see in a serving of standard whey protein powder. As well as this there is added Leucine, Creatine, Glutamine and HMB. All of these help contribute to muscle growth and maintenance. If you are looking for a premium mass gainer at a price that is still fairly competitive then Informed Mass makes a great choice. You will see that is compares very well to other gainers and if far superior to most.

The Protein Works Total Mass Matrix Extreme


Despite many people only hearing of The Protein Works recently, there products have won awards for their exceptional quality. Total Mass Matrix Extreme is a weight gainer for people looking to take mass gaining to the extreme. Per serving there is a gigantic 65g of protein which comes from a triple protein blend. As well as this there is also over 1000 calories per serving. The shake itself is extremely dense with both protein and calories.  There are also a number of extras including Glutamine and Vitamin B. There is currently two flavours available: Chocolate Silk and Strawberries & Cream. however with a thick shake you could see the chocolate becoming a bit sickly. If you look on The Protein Works website then you can see a number of five-star reviews from people all recommending the product. We also like that Total Mass Matrix Extreme is available in a 1 kg option which means you can try it without investing in big bag.

Optimum Nutrition Serious Mass

Most people have heard of Optimum Nutrition due to their premium quality Gold Standard Whey. Well for people looking for a premium quality mass gainer they have the option too. per serving there is a huge 1250 calories and 250g of carbs. There is also near 50g of protein per serving as well. If you are looking for premium quality then ON Serious Mass is what you are looking for. There are four flavours available including Strawberry and Chocolate. If you buy Serious Mass direct from Optimum Nutrition then it can be very expensive. I like to use Discount Supplements to buy Optimum Nutrition products as they have quick delivery and the price is usually a lot cheaper.

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 16 Servings, 5.45 kg
Proudly contains no added sugar! Boasts 24 vitamins and minerals per serving; Provides calories, encouraging weight gain and refuels body’s glycogen stores

Mutant Mass

A product with a great reputation that is mentioned a lot, Mutant Mass is one of the most well know weight gainers on the market. This ultimate formula is designed for you to put on some serious mass fast. if you have ever seen any of the mutants training videos then you will know fo their serious size. They take a serious  approach to size and their products show that. As well as containing healthy fats, there is also 1060 calories per serving and over 50g of protein. There are many flavours available and Mutant Mass is often sold in large quantities. If you are looking to stock up and save some money then it is worth buying one of the big bags such as the 6.8kg size which you can buy from Discount Supplements for £51.99. Mutant Mass is a calorie dense formula that should soon see you putting on some size.

CNP Professional Pro Mass

Unlike some of the more extreme mass gainers, CNP Professional Pro Mass is a little lighter. This is great if you are looking to improve those muscles gains but you do not need them thousands of calories extra each day. As this shake is a lot lighter you will not see such extreme results but should still see some good progress. There is approximately 400 calories per serving and 35g or protein. This is still plenty for increasing calories and protein intake without the serious mass gain. If you already find it fairly easy to gains muscle but want to increase the results further then this would be a good choice.

BSN True Mass

BSN produces some of the most cutting edge supplements on the market. I’m a regular user of their supplements and particularly enjoy their pre-workout shake. True Mass is a great choice for anyone looking to put on lean mass from a high quality protein source. The award winning formula is designed to maximise your results. True Mass contains less fat and carbohydrates than a lot of other mass gainers to ensure the mass you are putting on is lean muscle. each serving contains 702 calories and there are 46 grams of protein. There is also 84.8 grams of carbs in each serving. True Mass is widely available in a variety of flavours including chocolate Milkshake and Cookies & Cream.

BSN True Mass Mass Gainer Whey Protein Powder with BCAAs and Glutamine for Weight Gain and Muscle Recovery, Cookies and Cream, 16 Servings, 2.64 kg
BSN True mass is a macronutrient-heavy lean mass gainer for the additional caloric support

USN Muscle Fuel All-in-One-Mass

USN has a name for premium products and this is no exception. Muscle Fuel Mass has 50g of protein per serving and available in three flavours including Strawberry and Chocolate. There are 7 difference sources of protein in this weight gainer to support muscle growth and maintenance. Per serving there is 404 calories and the sake should be consumed 2-3 times per day. Despite USN often being more expensive than other brands, the quality is often far superior and the reviews speak for themselves. You can also buy this mas gainer from Discount Supplements where it will often be cheaper than buying direct from USN.

Sci-MX Super Mass XL

Super Mass XL is a new mass gainer from Sci-MX, one of my favourite supplement manufacturers. Each serving contains over 1000 calories for those looking to gain some serious muscle.  There is also creatine and added MCT oil for those looking for serious power and size. If you are a hard gainer and struggling to put on size, this product has been designed with you in mind. This shakes contains seriously high levels of calories, carbs and protein.A great feature of this shake is the 9 hour muscle support. This is done by using a blend of fast, medium and slow release proteins. These ensure your muscles are being fed continually all day long. There are also some unique nutrients to this mass gainer including B vitamins and Zinc.

Optimum Nutrition Gold Standard Gainer

Gold Standard Gainer from optimum Nutrition makes a great shake for post workout or any time throughout the day.  As well as tasting great, there is also over 55g of protein per serving and over 700 calories. There is a 2:1 ratio of protein to carbohydrates. This weight gainer is designed for people looking to put on lean mass. So if you already do not find it too hard putting on mass then this makes a great shake. It does not contain over 1000 calories like some shakes because some people just do not need that many. Gold Standard Gainer contains 6 different protein sources to support Muscle growth and just like with other ON products, is often available cheaper from discount supplements.

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Top Tips For Gaining Mass

  • Eat at the right times.  It is no good eating loads just before you plan on sitting down for hours. Instead it is better to eat consume a carb & filled meal before you workout to provide you with energy and repair you muscles.
  • Get a good amount of sleep. Whilst you are sleeping your muscles are repairing and growing. Getting enough sleep will make sure that you muscles have sufficient time to repair.
  • High intensity & variety are key. To increase muscle mass you need to train with increasing intensity to damage your muscles. They will then grow back bigger. Variety is also important as your muscles will get used to the same workout. If you really want to work them, ensure your workouts have variety.
  • Track your workouts. The are plenty of apps available to track your workouts and see how well you are doing. Keeping track will allow you aim higher each time.
  • Workout with someone. A workout partner is a great way to keep motivated and push yourself to train further.
  • Remember that good mass will not come overnight. In order to be successful in putting on mass it is going to take many months of dedication and training. Keep working hard and you will see some great results at the end.

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