Top Weight Gainer Supplements: Discover Leading Brands for Effective Results.

Choosing the right weight gainer supplement can be daunting given the plethora of options available in the market today. With varying ingredients and nutritional profiles, finding the best brand that suits your dietary needs and fitness goals is crucial. Some brands stand out due to their proven efficacy, quality ingredients, and positive customer reviews. Below, we explore a curated list of top-rated weight gainer supplements that may just be the game-changer in your muscle-building journey.

Illustration of weight gainer supplement

Best brands of weight gainer supplement in 2025

Optimum Nutrition

Optimum Nutrition, recognized as the World's #1 sports nutrition brand according to Euromonitor International Limited's 2023 data, is a leading producer of weight gainer supplements. Their Serious Mass High Protein Weight Gain Powder, for instance, provides 1260 Calories per 2 scoops, with a macronutrient breakdown of 81% carbs, 4% fat, and 16% protein, making it an excellent source of protein, potassium, and calcium. This product is designed to help users boost their calorie intake for muscle building and weight gain goals. Optimum Nutrition's Gold Standard Gainer and Pro Gainer also offer high-quality calories from protein and carbohydrates, with the Gold Standard Gainer providing 55 grams of protein and 109-116 grams of carbohydrates per serving. These products are favored for their high nutritional value and effectiveness in supporting muscle recovery and growth.

BSN

BSN (Bio-Engineered Supplements and Nutrition) is renowned as one of the best producers of weight gainer supplements, offering high-quality products like Mass Gainer, which contains 840 calories, 50 grams of protein, and 10 grams of BCAAs per serving. Introduced in the early 2000s, BSN's supplements have gained widespread popularity for their effectiveness and nutritional value. With a protein efficiency ratio of 2.5, BSN's weight gainers are designed to support muscle growth and recovery. The brand is trusted by athletes and bodybuilders worldwide, with products available in over 90 countries. BSN's commitment to quality and innovation has made it a leader in the sports nutrition industry.

MuscleTech

MuscleTech is a leading brand in the weight gainer supplement market, renowned for its innovative and scientifically-backed products. Their flagship product, MASS-TECH(r), has been shown to help users gain over four times more lean muscle in a 12-week study, with key ingredients including 50g of protein, 1,370 calories, and 5g of creatine per serving. The brand's commitment to research and development is evident in products like Mass-Tech Elite, which offers 80g of protein and 1010 calories per serving, and Mass-Tech Extreme 2000, providing 2,130 calories and 60g of protein. MuscleTech's supplements are designed to enhance muscle size, increase strength, and support recovery, making them a favorite among athletes and bodybuilders. With a strong presence in the global protein supplements market, which is expected to grow at a CAGR of 8.0% from 2023 to 2030, MuscleTech continues to be a trusted name in sports nutrition.

Dymatize

Dymatize is a renowned brand in the athletic nutrition industry, particularly celebrated for its high-quality weight gainer supplements. The Dymatize Super Mass Gainer, for instance, offers a robust calorific profile with each serving providing approximately 1,300 calories, 52 grams of protein, and 245 grams of carbohydrates, making it an ideal choice for bodybuilders and powerlifters in the bulking phase. This supplement also includes essential vitamins and minerals, as well as creatine and BCAAs, to support muscle growth and reduce fatigue. With its products banned substance-tested and formulated to meet specific nutritional needs, Dymatize has established a strong reputation in the market. The global demand for such protein supplements is expected to grow at a CAGR of 6.3% from 2023 to 2033, further solidifying Dymatize's position as a leading producer.

Universal Nutrition

Universal Nutrition is a leading brand in the weight gain supplement market, known for its powerful and anabolic formulas designed to help athletes pack on size and mass. Their products, such as Gain Fast and Real Gains, are rich in protein, complex carbohydrates, and advanced anabolic agents, making them ideal for those seeking significant gains. For instance, Real Gains provides over 600 calories per serving, including 52 grams of protein, and is available in various flavors. Universal Nutrition's products are engineered for maximum gains and are part of a broader market that is expected to see significant growth, with the global weight gain supplements market forecasted to expand notably from 2024 to 2031. The brand's commitment to quality and effectiveness has made it a favorite among bodybuilders and athletes.

Naked Nutrition

Naked Nutrition is renowned for producing high-quality weight gainer supplements, such as Naked Mass and Vegan Naked Mass, which combine premium proteins and complex carbohydrates to aid in muscle growth and weight gain. Each serving of Naked Mass contains 1250 calories and 50 grams of high-quality protein, while Vegan Naked Mass offers 1230 calories and 50 grams of plant-based protein. These supplements are free from artificial additives, gluten, GMOs, and soy, ensuring a healthy and safe way to gain weight. The products are certified by Informed Choice Trusted by Sport, ensuring they are free from banned substances. With a commitment to transparency and using organic ingredients, Naked Nutrition stands out in the supplement industry.

Serious Mass by ON

Optimum Nutrition's Serious Mass is a top-tier weight gainer supplement, offering 1,250 calories, 50 grams of protein, and over 253 grams of carbohydrates per serving, making it ideal for athletes aiming to build muscle and gain weight. It also includes 5g of creatine monohydrate, 8g of naturally occurring glutamine, and 19 vitamins and minerals. This formula is designed to support intense workouts and aid in muscle recovery, trusted by elite strength athletes worldwide. With its high-calorie and nutrient-dense profile, Serious Mass is a convenient and effective solution for those struggling to consume enough calories through whole foods. It is available in five rich and delicious flavors.

Transparent Labs

Transparent Labs is renowned for producing one of the best weight gainer supplements on the market, particularly with their Mass Gainer formula. This supplement offers 750 calories, 53 grams of protein from 100% Grass-Fed Whey Concentrate, and 110 grams of carbohydrates per serving, making it an ideal choice for those seeking to increase lean muscle mass. Introduced by a company founded in 2015, Transparent Labs Mass Gainer is free from artificial ingredients and added sugars, and it includes 3 grams of creatine monohydrate to enhance athletic performance. The product is naturally flavored and sweetened, and it provides 20% of the daily recommended fiber intake. Recommended by athletes like Hafthor Julius Bjornsson, this supplement is a top choice for those looking to bulk up effectively.

GNC Pro Performance

GNC Pro Performance is a renowned brand in the supplement industry, particularly for its weight gainer products, which have been trusted since 1935 for their high quality, safety, and efficacy. The GNC Pro Performance Weight Gainer, available in Double Chocolate flavor, offers 50 grams of high-quality protein per serving, along with 700 calories, BCAAs, MCTs, and a dual carbohydrate system to support muscle growth and energy replenishment. This formula is designed to release protein at varied intervals, ensuring continuous muscle support. With a commitment to meeting the highest standards in nutritional science, GNC Pro Performance weight gainers are banned substance free, making them a reliable choice for athletes and fitness enthusiasts. The product's effectiveness in promoting healthy weight gain and reducing muscle breakdown has been positively reviewed by numerous users. You can explore more about the GNC Pro Performance Weight Gainer at Rite Aid.

Ultimate Nutrition

Ultimate Nutrition is renowned as one of the best producers of weight gainer supplements, offering products like MUSCLE JUICE(r) 2544 and ISOMASS XTREME GAINER(r). These supplements are formulated to promote lean muscle mass, with MUSCLE JUICE(r) 2544 providing 1020 calories, 55g of protein, and 162g of carbohydrates per serving, while ISOMASS XTREME GAINER(r) combines creatine and glutamine for rapid muscle growth and recovery. Ultimate Nutrition's products are designed to support intense workouts and aid in superior recovery, making them a top choice for athletes and bodybuilders. With a comprehensive range of fitness products, Ultimate Nutrition caters to various fitness needs, including muscle building, performance enhancement, and overall wellness. Their supplements are trusted for their high-quality ingredients and effective results.