Top Weight Gainer Brands to Fuel Your Gains

Navigating the myriad of options in the realm of fitness supplements can be daunting, particularly when it comes to choosing a weight gainer. Many brands promise exponential gains and exceptional results, but discerning the best from the rest is essential for anyone serious about their fitness journey. From established titans to emerging innovators, each brings unique formulas tailored to meet diverse nutritional needs and athletic goals. Explore the following list to discover some of the best brands that have consistently delivered quality and effectiveness in weight gain supplements.

Illustration of weight gainer

Best brands of weight gainer in 2025

Optimum Nutrition

Optimum Nutrition is renowned as one of the best producers of weight gainers, particularly with their flagship product, Serious Mass, which offers up to 1260 calories, 50g of protein, and 253g of carbohydrates per serving. This formula is designed to support muscle building, weight gain, and fuel intense workouts, making it a favorite among elite strength athletes. Optimum Nutrition, part of Glanbia Plc, has a strong presence in the global protein supplements market, which was valued at USD 5.83 billion in 2022 and is expected to grow at a CAGR of 8.0% from 2023 to 2030. The brand's products are trusted for their high quality and effectiveness, contributing to the sports nutrition segment's 76.3% revenue share in 2022. With a range of flavors and a reputation for delivering results, Optimum Nutrition remains a leader in the sports nutrition industry.

BSN

BSN is renowned as one of the best producers of weight gainers, particularly with their True-Mass product, which offers a 2:1 ratio of carbohydrates to protein, providing 700-710 calories, 46-50 grams of protein, and 85-90 grams of carbohydrates per serving. This formula is designed to support lean muscle growth and recovery without adding unnecessary fat. True-Mass also includes 10 grams of naturally occurring BCAAs and EAAs, and it is available in several flavors. The product is free from hormones, creatine, stimulants, and aspartame, making it a high-quality choice for athletes. With its milkshake-like texture and lower calorie count, True-Mass is ideal for those seeking lean gains. Explore more about BSN True-Mass weight gainer.

MuscleTech

MuscleTech is a leading brand in the weight gainer market, recognized for its premium products like 100% Mass Gainer and MASS-TECH(r), which are engineered to help users build muscle, gain strength, and expedite recovery. These products are enriched with high-quality protein, mass-producing calories, and creatine, with the 100% Mass Gainer delivering 60g of protein, 1,500 calories, and 5g of creatine per serving, while MASS-TECH(r) provides 50g of protein, 1,370 calories, and 5g of creatine per serving. Studies have demonstrated that users of MASS-TECH(r) can gain over four times more lean muscle and enhance their squat strength by 2.6 times more than those using a placebo. With a steadfast commitment to scientific research and innovation, MuscleTech's products are supported by ingredient research from leading universities. The brand's offerings are highly rated and widely accessible, with free shipping on orders over $30.

Dymatize

Dymatize is renowned as one of the top producers of weight gainers, particularly with their Super Mass Gainer, which offers a robust blend of 1,200-1,310 calories, 52 grams of high-quality protein, and 245 grams of carbohydrates per serving. This product is formulated with fast- and slow-absorbing protein blends, includes BCAAs, and is banned substance-tested, making it a reliable choice for athletes and bodybuilders. Available in Rich Chocolate and Gourmet Vanilla flavors, Dymatize Super Mass Gainer also contains 14 vitamins and minerals to support overall health. The product's high calorie and nutrient content is designed to facilitate rapid mass gain, and it has received positive reviews for its taste and effectiveness. Despite its high sugar content and thick consistency, it remains a popular option for those seeking significant weight and muscle gains.

Universal Nutrition

Universal Nutrition is a renowned brand in the sports nutrition industry, particularly celebrated for its high-quality weight gainer products like Gain Fast. For over 40 years, Universal Nutrition has been a leader, formulating and producing world-class supplements available in over 90 countries. Their products, such as Gain Fast, are engineered for maximum gains in mass and size, rich in protein and complex carbohydrates. Gain Fast is designed to support cellular growth and is recommended to be taken one to three times daily in conjunction with a proper training and nutrition program. This commitment to quality and effectiveness has made Universal Nutrition a trusted name among athletes and bodybuilders globally.

Labrada Nutrition

Labrada Nutrition is renowned as one of the best producers of weight gainers, particularly with their Muscle Mass Gainer product, which is meticulously crafted for "hard gainers." This all-in-one protein shake offers a balanced blend of 84 grams of protein, 315 grams of carbohydrates, and creatine when mixed with 32 oz of whole milk, providing 1930 calories. It is gluten-free, eco-friendly, and undergoes independent third-party testing to ensure label claims are met. The product is available in various flavors and is suitable for vegetarians. Labrada's quality guarantee, "If it's on the label, it's in the bottle!" ensures purity and effectiveness.

Serious Mass

Optimum Nutrition's Serious Mass is a top-tier weight gainer, providing up to 1260 calories, 50g of complete protein, and 253g of carbohydrates per serving, making it ideal for athletes seeking significant muscle and performance gains. It also includes 5g of creatine monohydrate, 8g of naturally occurring glutamine, and 11g of BCAAs per serving. This formula is enriched with 19 vitamins and minerals, including vitamins A, C, E, and zinc to support immune health. Trusted by elite strength athletes worldwide, Serious Mass is a cornerstone product from the world's #1 sports nutrition brand. With its high-calorie and nutrient-dense profile, it aids in intense workout fueling and glycogen replenishment.

MHP

MHP (Maximum Human Performance) is a renowned brand in the weight gain supplements market, trusted by millions of athletes and consumers worldwide for over 25 years. Known for its science-backed formulas and commitment to quality, MHP produces products like Up Your Mass XXXL 1350, which features a powerful blend of 50g protein and 11g of BCAAs to support significant muscle growth and strength. MHP's products are manufactured in GMP-certified facilities in the USA, ensuring high-quality and purity. With a customer satisfaction rate of 96.3%, MHP stands out as a leader in sports supplementation. The brand's products are widely available in various outlets, including supermarkets and online platforms. You can learn more about Up Your Mass XXXL 1350 on their official website.

Mutant Mass

Mutant Mass is a leading brand in the weight gainer market, renowned for its high-calorie, nutrient-dense formulas designed to maximize muscle gain. Each serving of Mutant Mass provides 1,100 calories, 56 grams of protein, and 192 grams of carbohydrates, making it an ideal supplement for bodybuilders and athletes. With a presence in over 100 countries, Mutant Mass has established itself as a global leader in muscle gain supplements. The formula is enriched with quality food-based nutrients such as sweet potatoes, rolled oats, MCTs, and avocado, ensuring a balanced and effective nutritional profile. Mutant Mass has also reduced sugar content by 52% in its latest formula, enhancing its appeal to health-conscious athletes.

ProSupps

ProSupps is renowned as one of the top producers of weight gainer supplements, particularly with their IncrediBulk Premium Weight Gainer, which offers a robust blend of high-quality proteins, complex carbohydrates, and essential fats. Each serving of ProSupps IncrediBulk contains 1300 calories, 250 grams of carbohydrates, and 54 grams of protein, along with 19 grams of naturally occurring EAAs to support muscle growth and recovery. This formula is designed to help athletes and bodybuilders gain weight and muscle mass efficiently. With its commitment to quality and efficacy, ProSupps IncrediBulk is a preferred choice for those seeking to enhance their training and physique. The product's effectiveness is evident in its ability to support significant weight gain within the first week of use.