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Struggling to put on size despite consistent training and a seemingly large appetite? You are not alone. For many, especially those known as 'hard gainers', achieving the necessary calorie surplus to build muscle can be a significant challenge. A high-calorie shake, commonly known as a mass gainer, can be a practical tool to help bridge this nutritional gap.
Navigating the market for a suitable weight gainer can be confusing. With so many formulas available, it is important to find one that aligns with your specific goals, whether that is gaining serious mass, building lean muscle or adhering to dietary requirements. This guide is designed to help you understand the key factors to consider and to highlight some noteworthy options available.
Before selecting a bulking powder, it is useful to consider a few key aspects to ensure it matches your fitness objectives and dietary needs.
The primary purpose of a mass gainer is to provide a high number of calories, primarily from carbohydrates and protein. However, the ratio can vary significantly.
The type of protein used is a crucial factor, especially for those with dietary restrictions.
Some advanced formulas include extra ingredients to support performance and recovery. A mass gainer with creatine is a popular choice, as creatine is known to support strength and power output during high-intensity exercise. Other additions might include amino acids (BCAAs), HMB and digestive enzymes to aid nutrient absorption.
Here are a few recommendations that cater to different goals and dietary preferences, selected to help you make an informed choice.
Why It Stands Out: This is a classic hard gainer supplement designed specifically for individuals who find it difficult to increase body mass. Its primary strength lies in its calorie density, delivering over 900 kcal per serving. This substantial energy boost is combined with a blend of fast and slow-digesting proteins to support muscle recovery and growth over an extended period.
Pros:
Who is it for? This is an ideal choice for true 'hard gainers', strength athletes and anyone in a serious bulking phase who needs a convenient way to consume a large number of calories.
Why It Stands Out: The 'Professional' version of Applied Nutrition Critical Mass is a more advanced, all-in-one lean mass gainer. While still providing a substantial 566 kcal per serving, its formulation is geared towards supporting lean muscle growth. It includes 3g of creatine monohydrate per serving to enhance strength, alongside HMB, glutamine and leucine. The addition of DigeZyme and LactoSpore is designed to support digestion and nutrient absorption.
Pros:
Who is it for? This is well-suited for athletes and dedicated gym-goers who want more than just calories. It is for those focused on building quality, lean muscle mass while also supporting performance and recovery.
Why It Stands Out: This product offers a unique solution as a dairy free mass gainer. It uses hydrolysed beef protein isolate as its protein source, making it an excellent option for individuals with lactose intolerance or a milk allergy. The formula is also free from gluten and soy. Despite being a specialist product, it does not compromise on its core function, delivering 452 kcal and 42g of protein per serving to support muscle growth.
Pros:
Who is it for? This is the go-to choice for anyone who needs to avoid dairy or has other specific dietary restrictions. It is also a great alternative for those looking to diversify their protein sources away from whey and casein.
The products highlighted here represent just a fraction of the options available. If you have different requirements or simply wish to explore a wider variety of formulas, flavours and sizes, there are many more to discover.
Browse our full collection of protein mass gainer supplements to find the perfect fit for your fitness journey.
The main difference lies in their nutritional composition. Whey protein is a supplement focused almost exclusively on protein content, with minimal carbohydrates and fats. A mass gainer is a high calorie shake that contains a significant amount of both protein and carbohydrates, designed to help you achieve a calorie surplus for weight gain and muscle building.
A mass gainer can be taken at any time of day to increase your total calorie intake. Many people find it effective when consumed post-workout to help replenish glycogen stores and kick-start muscle repair. It can also be used between meals as a convenient way to add extra calories without having to prepare another full meal.
For most people, mass gainers are a safe and effective tool when used as directed. However, due to the high-calorie content, some individuals may experience digestive discomfort or bloating, particularly when first starting. It is often a good idea to begin with a half-serving to assess your tolerance before moving to a full serving. Always choose a product that suits your dietary needs, such as a dairy free mass gainer if you are sensitive to lactose.