20 Best Mass Gainers for Muscle Growth: User Reviews & Top Picks on Amazon

Struggling to pack on muscle despite endless hours at the gym? You’re not alone. Many fitness enthusiasts find it challenging to meet their caloric and protein needs through regular meals alone. That’s where mass gainers come in. These high-calorie supplements are designed to help you bulk up by providing the extra nutrients your body needs for muscle growth and recovery.

Choosing the right mass gainer can be overwhelming with so many options on the market. Whether you’re a hard gainer or just looking to add some serious muscle, we’ve got you covered. In this article, we’ll break down the 20 best mass gainers available today, so you can make an informed decision and reach your fitness goals faster.

Top Criteria for Choosing the Best Mass Gainer

Choosing the right mass gainer on Amazon can be overwhelming. Here are the top criteria to help you find the best product for your muscle growth and recovery needs.

Analyzing Protein Content

Protein matters. Look for products with at least 20-30 grams per serving. This ensures you get enough amino acids for muscle repair and growth. For example, Optimum Nutrition Serious Mass offers 50 grams of protein per serving, making it a strong candidate.

Bestseller No. 1
Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 12 Pound (Packaging May Vary)
  • HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving
  • 50 grams of blended protein per 2-scoop serving
  • Over 250 grams of carbohydrates per 2-scoop serving
  • With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support
  • MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential

Understanding Carb-to-Protein Ratio

Balance is key. A good carb-to-protein ratio is typically 2:1 or 3:1 for optimal muscle gain. Products like BSN True Mass boast a 2:1 ratio, providing the right blend of carbs and protein to fuel your workouts and recovery effectively.

Evaluating Caloric Density

Calories count. Your mass gainer should have at least 500 calories per serving to help you reach your daily caloric goals. Muscle Milk Gainer, with 650 calories per serving, is an excellent choice for adding size without feeling too full.

By keeping these criteria in mind, you can make an informed decision and select the best mass gainer to meet your fitness goals.

Breakdown of the 20 Best Mass Gainers

Choosing the right mass gainer on Amazon can be daunting, but we’ve done the legwork for you. Here’s a detailed breakdown of the top choices.

Mass Gainers for Quick Results

  1. Optimum Nutrition Serious Mass

Optimum Nutrition Serious Mass is ideal for those seeking quick weight gains. Each serving provides 1,250 calories, 50g of protein, and 252g of carbs. This power-packed content ensures rapid growth if you’re consistently working out. The vanilla flavor is a favorite among users.

Bestseller No. 1
Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 12 Pound (Packaging May Vary)
  • HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving
  • 50 grams of blended protein per 2-scoop serving
  • Over 250 grams of carbohydrates per 2-scoop serving
  • With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support
  • MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential
  1. BSN True Mass

BSN True Mass is another excellent choice for fast results. With 700 calories, 46g of protein, and 90g of carbs per serving, this product supports muscle recovery and growth. It’s ideal if you want effective mass gain with a creamy and delicious taste.

SaleBestseller No. 1
BSN TRUE-MASS Weight Gainer, Muscle Mass Gainer Protein Powder, Chocolate Milkshake, 5.82 Pound
  • TRUE-MASS: 700 CALORIES PER SERVING – the extra nutrition your body needs to build mass in an extreme training program.
  • 2:1 RATIO OF CARBS & PROTEIN – provide your body a high-quality mix of carbs and protein to support your mass gaining goals
  • 46G-50G PROTEIN FROM ULTRA-PREMIUM PROTEIN SOURCES – whey protein concentrate, calcium caseinate, milk protein isolate, whey protein isolate, micellar casein, hydrolyzed whey protein, and egg whites
  • Medium chain triglycerides (MCT) FATS – round out the nutritional value of each shake and complement BSN's legendary great taste
  • BSN FLAVOR TECHNOLOGY – Unbeatable taste and consistency for a milkshake-like experience you’ll always love, with several craveable flavor options
  1. Organic Muscle Gainer

Organic Muscle Gainer stands out for its commitment to natural ingredients. Each scoop offers an all-organic blend of protein, carbs, and fiber, perfect for those preferring a cleaner supplement. It’s free from artificial additives and sweeteners, making it gentle on your stomach.

Bestseller No. 1
NAKED Vegan Mass - Natural Vegan Weight Gainer Protein Powder - 8Lb Bulk, Gmo Free, Gluten Free, Soy Free & Dairy Free. No Artificial Ingredients - 1,230 Calories - 11 Servings
  • ONLY THREE INGREDIENTS: Pea Protein Powder, Organic Rice Protein Powder and Organic Maltodextrin (made from gluten free organic tapioca). Vegan Naked Mass contains no artificial sweeteners, flavors, or colors and is GMO Free, Soy Free, Gluten Free, and Dairy Free with no rBGH or rBST.
  • VEGAN NUTRITION: Each serving of our unflavored vegan weight gainer powder contains 50g of Protein, 248g of Complex Carbs, 1,230 Calories and 10.3g of BCAAs (branched-chain amino acids). To ensure a complete amino acid profile, the ratio of pea to rice protein is 2:1.
  • PREMIUM COMPLEX CARBOHYDRATES: Unlike other vegan weight gain supplements, Naked Vegan Mass does not use wheat based carbohydrates, instead using gluten-free organic tapioca maltodextrin for a clean source of complex carbohydrates.
  • REAL CLEAN PROTEIN: Gain weight the right way with our lactose free weight gainer, which contains our premium Naked Pea and Naked Rice protein. Naked Vegan Mass provides your body with the amino acids it needs to maintain protein synthesis and help you gain muscle when used with a weightlifting fitness routine.
  • IDEAL FOR VEGAN WEIGHT GAINER SHAKES: Our unflavored vegan mass gainer is the perfect base so you can easily control what goes into your body and flavor as desired with fruit or vegetables. For use by men or women that prefer a non dairy weight gainer.
  1. Naked Mass – Natural Weight Gainer

Naked Mass includes only three ingredients: Naked Whey, Naked Casein, and organic maltodextrin. With no artificial flavors, colors, or sweeteners, it offers a pure approach to gaining mass. Each serving provides 1,250 calories and 50g of protein. Plus, it’s versatile – you can mix it with milk, water, or smoothies.

Bestseller No. 1
NAKED Mass - Natural Weight Gainer Protein Powder - 8 LB Bulk, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per serving
  • ONLY THREE INGREDIENTS: Naked Whey, Naked Casein and Organic Maltodextrin (made from gluten free organic tapioca). Naked Mass contains no artificial sweeteners, flavors, or colors and is GMO Free, No rBGH or rBST, Soy Free and Gluten Free.
  • MAXIMUM NUTRITION: 50g of Protein, 252g of Carbs, 1,250 Calories, 11.5g of BCAAs (branched-chain amino acids) per serving and only 5g sugar - compare vs other weight gain supplements for bulking.
  • MULTI-PHASE CLEAN PROTEIN: Keep protein synthesis up by combining fast release grass-fed whey with slow-digesting micellar casein. Plus, get the healthy amino acids your body needs. Combine with a high-calorie diet and exercise to gain weight and transform yourself from a hard gainer to a pro gainer.
  • PREMIUM COMPLEX CARBOHYDRATES: Unlike other weight gainer supplements that use wheat-based maltodextrins, Naked Mass is a serious, true mass gainer and uses gluten free organic tapioca maltodextrin for clean source complex carbohydrates.
  • BEST WEIGHT GAINER SHAKES AND RECIPES: Our unflavored super mass gainer protein powder is versatile for making smoothies and recipes. Boost calories and give your body optimum nutrition by adding Naked Mass to homemade protein bars, shakes, and more.

These picks cater to different priorities, whether you want quick gains or prioritize natural ingredients. Keep these in mind to enhance your fitness journey with the best Amazon mass gainers.

Detailed Reviews of Top 5 Mass Gainers

Comprehensive Overview

Optimum Nutrition Serious Mass stands out for its high-calorie content per serving, essential for quick weight gain. It’s packed with vitamins and minerals, making it great for overall health. BSN True Mass offers a blend of proteins that provide a sustained release of amino acids, perfect for muscle recovery post-workout. Organic Muscle Gainer focuses on natural ingredients, appealing to those who prefer organic products. Naked Mass offers a clean formula with no artificial additives, ideal for those with dietary restrictions. Dymatize Super Mass Gainer is power-packed with proteins and high in calories, suitable for intense muscle building sessions.

Bestseller No. 1
Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 12 Pound (Packaging May Vary)
  • HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving
  • 50 grams of blended protein per 2-scoop serving
  • Over 250 grams of carbohydrates per 2-scoop serving
  • With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support
  • MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential

Pros and Cons

Optimum Nutrition Serious Mass is beneficial for quick calorie intake but may not suit everyone due to its high sugar content. BSN True Mass maintains muscle recovery but comes at a higher price point. Organic Muscle Gainer caters to organic lovers but has a lower calorie count than others. Naked Mass ensures no artificial additives but can be tough to mix. Dymatize Super Mass Gainer brings high calories and proteins but has a relatively higher carbohydrate content, which may not appeal to all.

Flavor and Mixability

Optimum Nutrition Serious Mass excels with several flavor options, including chocolate, vanilla, and banana, and mixes easily. BSN True Mass also mixes well and offers flavors like cookies and cream. Organic Muscle Gainer has a more natural taste, which some may find less appealing, though it mixes reasonably well. Naked Mass focuses on a neutral flavor, ensuring compatibility with various recipes but can take longer to blend. Dymatize Super Mass Gainer brings delicious flavors like gourmet vanilla and rich chocolate but may require a blender for the best consistency.

Benefits of Incorporating Mass Gainers in Your Diet

Mass gainers can be a game-changer for fitness enthusiasts aiming to meet their caloric and protein needs. They’re specially designed supplements that support muscle growth, recovery, and overall caloric intake. Below are some key benefits:

Accelerated Muscle Growth

Using mass gainers accelerates muscle growth by providing a higher concentration of calories and protein. Optimum Nutrition Serious Mass, for example, contains 50 grams of protein per serving. This high protein content supports muscle synthesis, helping you achieve muscle hypertrophy faster.

Bestseller No. 1
Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 12 Pound (Packaging May Vary)
  • HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving
  • 50 grams of blended protein per 2-scoop serving
  • Over 250 grams of carbohydrates per 2-scoop serving
  • With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support
  • MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential

Improved Recovery Times

Incorporating mass gainers improves recovery times due to the quick absorption of proteins and carbs. BSN True Mass includes a protein blend along with carbs to refuel your muscles post-workout. Faster recovery means you can hit the gym more frequently and maintain a consistent workout regime.

SaleBestseller No. 1
BSN TRUE-MASS Weight Gainer, Muscle Mass Gainer Protein Powder, Chocolate Milkshake, 5.82 Pound
  • TRUE-MASS: 700 CALORIES PER SERVING – the extra nutrition your body needs to build mass in an extreme training program.
  • 2:1 RATIO OF CARBS & PROTEIN – provide your body a high-quality mix of carbs and protein to support your mass gaining goals
  • 46G-50G PROTEIN FROM ULTRA-PREMIUM PROTEIN SOURCES – whey protein concentrate, calcium caseinate, milk protein isolate, whey protein isolate, micellar casein, hydrolyzed whey protein, and egg whites
  • Medium chain triglycerides (MCT) FATS – round out the nutritional value of each shake and complement BSN's legendary great taste
  • BSN FLAVOR TECHNOLOGY – Unbeatable taste and consistency for a milkshake-like experience you’ll always love, with several craveable flavor options

Enhanced Overall Caloric Intake

Enhanced overall caloric intake is crucial for those looking to bulk up. Products like Dymatize Super Mass Gainer provide over 1200 calories per serving, making it easier to meet your daily caloric intake without consuming large volumes of food. This benefit helps sustain energy levels and promotes gradual weight gain.

Bestseller No. 1
Dymatize Super Mass Gainer Protein Powder, 1280 Calories & 52g Protein, Gain Strength & Size Quickly, 10.7g BCAAs, Mixes Easily, Tastes Delicious, Gourmet Vanilla, Gourmet Vanilla, 6 Pound (Pack of 1)
  • 10.7 grams of BCAAs as building blocks, including 5.1g Leucine, as building blocks to help activate Muscle Protein Synthesis
  • 1310 calories and 245g carbs per serving to help even the hardest gainers pack on mass
  • 52 grams of protein per serving (a blend of fast, medium, and slow digesting proteins) for muscle support
  • 17 vitamins and minerals to support balanced nutrition, healthy muscle tissue and muscle recovery

These benefits highlight why mass gainers are a valuable addition to any serious fitness enthusiast’s diet. Be sure to choose the right product based on your specific needs and goals.

How to Effectively Use Mass Gainers

Maximizing the benefits of mass gainers involves knowing the optimal times for consumption and proper mixing techniques.

Best Times to Consume Mass Gainers

Choosing the right times to consume your mass gainer can significantly impact your results. Most effective times include post-workout, between meals, and before bed. After a workout, your muscles are primed to absorb nutrients, making this an ideal time to take your mass gainer for recovery and growth. Similarly, having it between meals helps to keep your caloric intake up and supports muscle growth throughout the day. Taking a serving before bed ensures your body gets a steady supply of nutrients during the night when it repairs and grows muscle tissue.

Tips on Mixing and Consumption

Proper mixing and consumption techniques can improve your experience with mass gainers. Use a blender for a smooth consistency, and try mixing with milk instead of water for extra calories and protein. Adding ingredients like fruits, peanut butter, or oats can enhance flavor and nutritional value. Start with a smaller serving to assess digestibility and gradually increase to avoid gastrointestinal discomfort. Always follow the recommended serving instructions on the packaging to prevent overconsumption.

Featured Amazon Product: Optimum Nutrition Serious Mass

Customers love Optimum Nutrition Serious Mass for its high calorie and protein content, making it a top choice for those looking to gain muscle mass quickly. With 50 grams of protein and over 250 grams of carbohydrates per serving, this product promises to provide the nutrients necessary for muscle growth and recovery.

Common Misconceptions About Mass Gainers

Myth 1: Mass Gainers Replace Meals

Many think mass gainers can substitute full meals. They can’t. Mass gainers are supplements designed to boost your diet, adding extra calories and nutrients. Relying solely on them deprives your body of the diverse nutrition it gets from whole foods. Always include balanced meals to ensure comprehensive nutrient intake. A mass gainer should complement, not replace, your daily meals.

Myth 2: All Gain Is Muscle

Some believe mass gainers lead purely to muscle gain. This isn’t true. While they provide proteins and calories essential for muscle growth, overconsumption without proper exercise could result in fat gain. Ensure you have a balanced workout regime to maximize muscle synthesis and minimize fat accumulation. Remember, mass gainers aren’t magical solutions—they support your fitness goals alongside disciplined training.

Recommended Amazon Product

Optimum Nutrition Serious Mass is highly rated for its effective results in mass gain. It contains a balanced mix of proteins, carbs, and essential nutrients to fuel muscle growth.

Bestseller No. 1
Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 12 Pound (Packaging May Vary)
  • HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving
  • 50 grams of blended protein per 2-scoop serving
  • Over 250 grams of carbohydrates per 2-scoop serving
  • With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support
  • MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential

Reviewers praise its effectiveness in improving muscle mass when coupled with routine workouts. Many appreciate its comprehensive ingredient profile and versatile mixing options for better taste and nutrition.

Real User Experiences with Top Mass Gainers

Users have shared their experiences with various mass gainers available on Amazon. Let’s delve into what they have to say.

Success Stories

Optimum Nutrition Serious Mass has made a significant impact on many users. One reviewer mentioned gaining 5 pounds of muscle in just a month, thanks to its balanced nutrient profile. They emphasized the importance of combining the supplement with a consistent workout regimen. Another user appreciated the steady increase in muscle mass without experiencing any digestive issues, which they often encountered with other products.

Bestseller No. 1
Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 12 Pound (Packaging May Vary)
  • HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving
  • 50 grams of blended protein per 2-scoop serving
  • Over 250 grams of carbohydrates per 2-scoop serving
  • With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support
  • MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential

User Recommendations

BSN True Mass comes highly recommended for its effectiveness and taste. Users have praised its ability to mix easily without clumping, making it convenient for daily use. One long-term user reported noticeable muscle gains and better recovery times, attributing much of their progress to BSN True Mass. If you’re looking for a mass gainer that’s both effective and enjoyable to consume, this one stands out.

Conclusion

Choosing the right mass gainer can significantly impact your muscle growth and recovery journey. Real user experiences highlight the effectiveness of products like Optimum Nutrition Serious Mass and BSN True Mass, both praised for their balanced nutrient profiles and ease of use. To achieve your fitness goals, it’s crucial to select a mass gainer that aligns with your dietary needs and workout routine. By doing so, you’ll be well on your way to achieving the muscle gains you desire.

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