Best High-Protein Weight Gainers of 2025

Muscletech Mass-Tech Extreme 2000, also known as Muscletech Mass-Tech, is a 5-in-1 hardcore mass gainer designed to help you put on extreme mass. With a whopping 80g of premium protein per serving, this mass gainer provides your body with all the necessary building blocks to build the size and muscle you desire. Whether you are looking to bulk up, pack on muscle, or break through strength plateaus, Mass-Tech Extreme 2000 has got you covered. Its powerful formula is specifically designed to help you achieve your fitness goals. With its high protein content, it supports muscle growth and recovery. Mass-Tech Extreme 2000 is the ultimate solution for individuals who want to take their muscle-building journey to the next level.

GNC Pro Performance Bulk 1340 is a high-calorie mass gainer that provides 1,340 calories and 50g of protein per serving. It is designed to help you increase size and overall strength when used in conjunction with an exercise program. The formula includes 11g of branched chain amino acids (BCAA) and glutamine, which play important roles in protein synthesis and muscle cell hydration. This mass gainer has been tested for over 145 banned substances and is certified banned substance-free. GNC, a trusted brand since 1935, is committed to meeting the highest standards of quality, safety, and efficacy. With GNC Bulk 1340, you can support muscle energy, recovery, and growth while enjoying the convenience of a scientifically formulated mass gainer.

MuscleTech 100% Mass Gainer Protein Powder is a specially formulated nutrient-dense muscle builder for performance athletes looking to increase their dietary protein, carbohydrates and overall calorie intake. With high-quality protein, easily digestible carbs and pure HPLC-tested creatine, this superior weight gainer helps you get bigger and stronger, reaching muscle building milestones more efficiently. Mix one serving with 2 cups of cold water or skim milk, and drink immediately after your workout.

GNC Pro Performance Weight Gainer - Vanilla Ice Cream is a wellness formula designed to provide 50 grams of high-quality protein to increase mass. The formula is designed to release varied intervals throughout the day to ensure your muscles get the amino acids they need. It contains naturally occurring Branched Chain Amino Acids (BCAA) to help reduce muscle breakdown during exercise and medium chain triglycerides for fast, medium and slow releasing protein. Each serving contains 700 calories and 116g carbs to support your body composition goals.

Muscle Milk Gainer Protein Powder is a supplement containing 32g high-quality protein, 109g carbs, 650 calories, 2g MCTs, and an excellent source of 20 vitamins and minerals. The product is easy to mix and dissolves easily in water. The formula provides a blend of high-quality slow releasing and fast releasing proteins to help increase amino acid levels.

Mutant Mass Gainer is designed specifically for hard gainers looking to significantly increase their muscle mass. With an impressive 1,270 calories per serving when mixed with milk, you can easily consume the high energy needed to fuel intense workouts. Each serving also provides 46 grams of pure whey protein, which helps in muscle recovery and growth. Plus, the inclusion of natural whole foods like sweet potatoes and rolled oats ensures that you are getting quality nutrition. Enjoy the gourmet taste while you work towards your fitness goals!

The Rule One Mass Gainer is designed to help you achieve significant weight gain with its impressive 1,220 calories and over 250g of carbohydrates per serving. This formula features a 6:1 ratio of carbs to protein, making it easier for you to increase your caloric intake effectively. With 40g of protein sourced from three types of whey, it supports muscle growth and recovery. Additionally, it includes naturally-occurring BCAAs, creatine, and glutamine to enhance your workout performance. Just remember to combine it with a high-calorie diet and exercise for the best results.

Optimum Nutrition Gainer is designed to help you meet your mass gaining goals. With 650 calories per serving, it provides the energy you need to fuel your workouts and recovery. Each serving delivers a powerful 60 grams of high-quality protein, which supports muscle growth and repair. Additionally, the 85 grams of carbohydrates help replenish your energy levels after intense exercise. This product also includes essential vitamins and minerals to support your overall health, especially if you lead an active lifestyle. Enjoy it post-workout or as a snack between meals for optimal benefits.

MHP UYM XXXL Weight Gainer is designed to help you achieve significant muscle mass gains. With 1350 nutrient-dense calories, it provides the energy you need for intense workouts and recovery. The formula optimizes your insulin response, which is essential for maximizing muscle growth. It also delivers 50 grams of protein in a blend that offers both quick and sustained release, ensuring your muscles get the support they require over time. This weight gainer is not only effective but also comes in delicious milkshake flavors, making it a treat to consume.

Forzagen Mass Gainer Protein Powder is a high-quality protein supplement designed to help you gain weight and build muscle mass. With its high protein content, it provides the necessary nutrients to promote muscle growth and repair. This effective weight gainer is ideal for both men and women looking to gain weight in a healthy and balanced way. It is also calorie-rich, making it an excellent choice for those needing an extra energy boost. Simply mix this powder with your favorite beverage and enjoy a protein-packed drink that can help you reach your weight gain goals. With Forzagen Mass Gainer Protein Powder, you can easily and conveniently support your muscle-building journey.