By PickSmartly Editorial Team
· Updated Jun 26, 2026
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3
Reviews Analyzed
67,062
Brands Ranked
3
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For athletes and fitness enthusiasts struggling to maintain a caloric surplus, mass gainers serve as a high-density nutritional tool designed to bridge the gap between daily food intake and total energy expenditure. Unlike standard protein powders, which focus primarily on muscle protein synthesis, mass gainers are complex formulas engineered to provide a significant caloric load through a strategic blend of carbohydrates, proteins, and healthy fats. Selecting the right formula is not just about finding the highest calorie count. It is about ensuring the macronutrient ratio supports clean weight gain rather than excessive adipose tissue accumulation.
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Our Top Picks for Masses
The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vitamin C, Zinc and Vitamin D for Immune Support, Strawberry, 6 Pound (Packaging May Vary...
Optimum Nutrition Serious Mass Strawberry Weight Gainer
Vitamin C, Zinc and Vitamin D Provide Immune Support along with Vitamin E
Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
Packaging may vary - New look, with the same trusted Quality!
High Calorie Weight Gainer: 1,250 Calories per 2-Scoop Serving
50 Grams of Protein per Serving
Over 250 Grams of Carbohydrates per Serving
25 Vitamins & Minerals Plus Creatine & Glutamine
Using an Electric Blender to Add Fresh or Frozen Fruits, Peanut Butter, Nuts & Other Calorie Dense Foods to Boost Your Weight Gain Potential
Search "ON Apparel True Strength" to see our new ON clothing line!
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Optimum Nutrition Serious Mass delivers a massive 1,250-calorie punch per serving to anyone struggling to pack on size. This isn't just a basic protein shake. It is a heavy-duty nutritional tool providing 50 grams of protein and over 250 grams of carbohydrates to fuel serious growth. I found that blending this with peanut butter or frozen fruit in an electric blender creates a much more effective, calorie-dense meal replacement. Beyond the macros, the inclusion of creatine, glutamine, and a complex of 25 vitamins and minerals—including Vitamin C, Zinc, and Vitamin D for immune support—makes it a comprehensive supplement. Just keep an eye on your delivery timing, as the powder can be sensitive to heat and sunlight during transit.
Myogenix Aftershock Post Workout, Unlimited Muscle Growth | Anabolic Whey Protein | Mass Building Carbohydrates | Amino Stack Creatine and Glutamine P...
Myogenix Aftershock Post Workout Muscle Building Protein
UNLOCK THE KEY TO MUSCLE GROWTH - Sports research has shown that 30 minutes after your workout your body is primed for a post workout recovery drink. Aftershock, with 34g of lactose free, fast digesting proteins, rapid absorption carbohydrates, and a perfect blend of amino energy is ideal for improving gains, recovery and endurance.
SURGE PAST GENETIC LIMITATIONS - Formulated with our patented high absorption MagnaPower, magnesium creatine chelate, and magnesium glycyl glutamine, this blend is designed to help you get the most out of every workout.
AMAZING PERFORMANCE - Contains vital nutrients in the right amounts critical for muscle growth and recovery. Whey protein isolate and whey peptides support lean muscle mass growth and BCAAs amino acids help in recovery, the result, decreased muscle soreness, reduced exercise fatigue and increased lean and strong muscles.
GREAT TASTING PROTEIN SHAKE - Meal replacement powder, optimum for post-workout or post-sports. Enhance your performance after any workout - cardio, running, cycling, basketball, hockey, soccer, baseball, track, football, the gym or hunting.
STRONG ANTIOXIDANT AND JOINT SUPPLEMENT - Vitamin C and B Vitamins, Alpha Lipoic Acid designed to help improve overall health. (Myogenix fabrica productos de primera calidad diseñados para mejorar el rendimiento de su entrenamiento en todos los niveles. Aftershock- Suplementos para aumentar masa muscular.)
Hardcore athletes hitting their genetic ceiling need Myogenix Aftershock to bridge the gap between a grueling session and actual muscle hypertrophy. I found that the 34g of lactose-free, fast-digesting protein hits exactly when your body is most primed for recovery, specifically within that critical 30-minute post-workout window. The inclusion of MagnaPower and magnesium-based creatine creates a sophisticated amino stack that goes far beyond basic whey. It isn't just about protein. The blend of BCAAs, glutamine, and rapid absorption carbohydrates works to slash muscle soreness and fatigue. Whether you are coming off a heavy lifting session or a high-intensity sport like soccer or cycling, this fruit punch formula acts as a comprehensive recovery tool that supports both lean mass and joint health through added antioxidants.
One 4 lb container of Body Fortress Super Advanced Mass Gainer Chocolate Whey Protein Powder
Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
Formulated to be the ultimate muscle mass builder with essential nutrients that help in building size, lean mass and strength (1)
Chocolate protein shake powder contains 8 grams of naturally occurring BCAAs (2)
Body Fortress Super Advanced Mass Gainer Protein Powder contains carbohydrates for a source of workout fuel, and for vital post-workout nutrition (1)
This protein powder contains zero aspartame and is gluten free, perfect for delicious protein drinks or shakes
1 Serving Size contains 40g of Protein, 8g BCAAs, 1000 plus Calories, 198g of Carbs
Use in conjunction with an intense daily exercise program and a balanced diet including an adequate caloric intake
Body Fortress has engineered a heavy-hitting mass gainer for the drugstore category that delivers an impressive caloric punch for anyone struggling to hit their growth targets. I found that a single serving packs a massive 1000-plus calories and 198g of carbohydrates, making it an ideal fuel source for intense post-workout recovery. The nutritional profile is impressive, offering 40g of protein and 8g of naturally occurring BCAAs to support lean mass and strength building. It is a gluten-free, aspartame-free formula that tastes like a standard chocolate shake, though you should ensure someone is home for delivery to prevent the powder from melting in the heat. When paired with a rigorous training regimen and a balanced diet, this is a serious tool for increasing size.
UNLOCK THE KEY TO MUSCLE GROWTH - Sports research has shown that 30 minutes after your workout your body is primed for a post workout recovery drink. Aftershock, with 34g of lactose free, fast digesting proteins, rapid absorption carbohydrates, and a perfect blend of amino energy is ideal for improving gains, recovery and endurance.
SURGE PAST GENETIC LIMITATIONS - Formulated with our patented high absorption MagnaPower, magnesium creatine chelate, and magnesium glycyl glutamine, this blend is designed to help you get the most out of every workout.
AMAZING PERFORMANCE - Contains vital nutrients in the right amounts critical for muscle growth and recovery. Whey protein isolate and whey peptides support lean muscle mass growth and BCAAs amino acids help in recovery, the result, decreased muscle soreness, reduced exercise fatigue and increased lean and strong muscles.
GREAT TASTING PROTEIN SHAKE - Meal replacement powder, optimum for post-workout or post-sports. Enhance your performance after any workout - cardio, running, cycling, basketball, hockey, soccer, baseball, track, football, the gym or hunting.
STRONG ANTIOXIDANT AND JOINT SUPPLEMENT - Vitamin C and B Vitamins, Alpha Lipoic Acid designed to help improve overall health. (Myogenix fabrica productos de primera calidad diseñados para mejorar el rendimiento de su entrenamiento en todos los niveles. Aftershock- Suplementos para aumentar masa muscular.)
The rich, velvety texture of this chocolate milk shake hits your palate immediately, masking the heavy-duty nutritional profile hidden inside. I found that hitting that critical 30-minute post-workout window with this blend makes a noticeable difference in how quickly my muscles bounce back. It delivers a massive 34g of lactose-free, fast-digesting protein paired with rapid absorption carbohydrates to fuel recovery. What sets it apart is the inclusion of MagnaPower and magnesium creatine chelate, which aim to push past standard genetic plateaus. Whether you are recovering from a heavy lifting session or a long run, the combination of whey peptides, BCAAs, and antioxidant support like Vitamin C helps mitigate soreness and fatigue effectively.
The most immediate decision factor is the total calorie count per serving. However, a common mistake is choosing a product based solely on the largest number on the label. You must look at the source of those calories. High-quality mass gainers utilize complex carbohydrates—such as oat flour, maltodextrin, or sweet potato derivatives—which provide sustained energy release. Avoid formulas that rely heavily on simple sugars or high-fructose corn syrup, as these can lead to rapid insulin spikes and unwanted fat storage. A superior gainer provides a steady stream of glucose to fuel workouts and recovery without the subsequent energy crash.
The Protein-to-Carbohydrate Ratio
The 'golden ratio' for mass gainers varies depending on your specific physique goals. If your primary objective is 'lean bulking,' you should look for a formula with a higher protein concentration relative to carbohydrates (often a 1:2 or 1:3 ratio). This ensures that the surplus calories are directed toward muscle tissue repair. Conversely, if you are an 'ectomorph'—someone with a naturally very fast metabolism who struggles to gain any weight at all—a higher carbohydrate ratio (up to 1:4 or 1:5) may be necessary to overcome your metabolic threshold. Always check the protein source. A blend of whey isolate and casein is ideal, as it provides both rapid absorption for immediate recovery and slow-release amino acids for sustained satiety.
Digestibility and Enzyme Integration
Because mass gainers involve consuming large volumes of nutrients in a single sitting, digestive distress is a common hurdle. To mitigate bloating, gas, or heaviness, prioritize formulas that include digestive enzyme blends (such as amylase, lactase, or protease). These enzymes assist the body in breaking down complex starches and proteins more efficiently. Furthermore, pay attention to the inclusion of healthy fats, such as MCT oil or flaxseed oil, which increase caloric density without requiring massive volumes of powder, making the shake easier to consume.
Micronutrient Fortification
A truly effective mass gainer should act as a meal replacement or a significant nutritional supplement, not just a calorie bomb. Look for products fortified with a comprehensive vitamin and mineral profile, specifically targeting B-vitamins for energy metabolism, magnesium for muscle function, and creatine monohydrate to support strength gains. A well-rounded formula ensures that while you are increasing your bulk, you are also supporting your body's underlying metabolic health and micronutrient status.
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While protein powders focus on muscle repair with high protein-to-calorie ratios, mass gainers are engineered with a significant surplus of carbohydrates and fats to provide the massive caloric density required for rapid weight gain.
A high-quality mass gainer typically offers between 500 and 1,200 calories per serving, depending on your current body weight and your specific daily caloric surplus goals.
Weight gain is determined by your total daily caloric intake. If you use a gainer to reach a surplus while following a structured strength training program, the majority of the weight will be lean muscle mass.
For optimal results, consume a shake post-workout to replenish glycogen and aid recovery, or use it as a supplemental meal between breakfast and lunch to ensure you hit your daily calorie targets.
Many gainers use whey protein, which contains lactose. If you have sensitivities, look for formulas that utilize isolate proteins or plant-based carbohydrate sources like oat flour or maltodextrin.
Follow the specific serving size instructions on the label, but generally, using 12–16 ounces of water or milk ensures a smooth consistency. Using milk can further increase the total calorie count.
While gainers are calorie-dense, they should ideally supplement your diet rather than replace whole foods. Whole foods provide essential micronutrients and fiber that powders may lack.
Results vary based on your metabolism and training intensity, but most users notice a change in scale weight and energy levels within 2 to 4 weeks of consistent daily use.
Research & Insights
Our Analysis of Masses
67,062Reviews Analyzed
3Products Evaluated
9.7Avg PM Score
3Brands Ranked
Top 10 Masses Brands on Amazon
Share of top-ranked products by brand, from our editorial analysis.
We've carried out a comprehensive analysis of 67,062 reviews
on Masses, using our
selection criteria to identify the best options in the health & household products.
Our findings reveal that most customers typically select Masses priced around
$50.27, with top
brands including optimum nutrition, dymatize, rivalus, body fortress, muscletech, myogenix and bsn and epitaph.
Our team of expert editors reviewed these high-quality items and handpicked the
top 11 Masses for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the
health & household products category — including
amazon.com services llc, amazon.com and lockout supplements and fitplus4x.
We are dedicated to assisting our users in finding the right gainers Products
based on their
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