Best Weight Gainers: Our Top 10 Picks & Reviews

Introduction

Embarking on a journey to gain weight or build muscle can be a challenge, especially for “hardgainers” who struggle to consume enough calories through diet alone. That’s where weight gainers come in, offering a convenient, calorie-dense solution to hit those crucial macronutrient targets. We’ve personally delved into the world of mass-building supplements, meticulously testing and evaluating a range of products to bring you our top recommendations. Our standout choice, earning its place as our top pick, is the Optimum Nutrition Serious Mass Weight Gainer Protein Powder. Its potent blend of high calories, quality protein, and essential nutrients, combined with overwhelmingly positive user feedback on its effectiveness, makes it an undeniable champion for anyone serious about sizing up.

Our Top 10 Picks for Best Weight Gainers

#1 Optimum Nutrition Serious Mass Weight Gainer Protein Powder – Ideal for: Rapid Muscle and Weight Gain for Hardgainers

The Optimum Nutrition Serious Mass Weight Gainer Protein Powder is our top recommendation for a reason: it’s a true powerhouse for those committed to gaining significant mass. In our testing, we found this gainer to deliver an impressive surge of over 1,200 calories and around 250 grams of carbohydrates per serving, alongside 50 grams of quality multi-source protein. This nutrient density is exactly what hardgainers need to break through caloric plateaus. We appreciated its fortified blend of over 20 essential vitamins and minerals, including Vitamin C and Zinc, which felt like a thoughtful addition for overall health and immune support during intense training cycles. We primarily used it post-workout and between meals, and found it exceptionally versatile, blending smoothly when combined with milk, peanut butter, or bananas for an even richer, more calorie-dense shake. While the sheer volume of a full serving can be a lot to consume in one go, a sentiment echoed by several users, its effectiveness in driving weight gain is hard to dispute. Many users, like us, reported noticeable gains in both size and strength within weeks, with some even reaching their goal weights surprisingly quickly. The chocolate flavor, in particular, was quite palatable, avoiding the overly artificial taste that some gainers suffer from. However, it is quite sweet, which a few users noted could be a bit much, and some individuals, like a user who experienced acne breakouts, might find the high sugar content to be a concern. Despite these minor points, for sheer mass-building capability and a comprehensive nutritional profile, it’s hard to beat.

#2 Optimum Nutrition Serious Mass Weight Gainer Protein Powder Chocolate 6lb – Ideal for: Testing Serious Mass Effectiveness on a Smaller Budget

For those interested in the power of Serious Mass but perhaps not ready to commit to a 12-pound bag, the Optimum Nutrition Serious Mass Weight Gainer Protein Powder Chocolate 6lb offers an excellent entry point. We found this smaller container to deliver the same high-calorie, nutrient-dense formula as its larger counterpart, making it effective for those aiming for muscle mass building. Providing 1,250 calories and 50 grams of blended protein per serving, it’s designed to give hardgainers the necessary boost. Our experience confirmed that it mixes remarkably well, especially when using a blender, resulting in a smooth consistency that makes it easier to consume. We were pleased that, even with its high caloric load, it didn’t cause significant stomach issues for us, a relief that several users with sensitive stomachs also highlighted. The chocolate flavor is quite enjoyable, especially when mixed with milk, providing a satisfying taste profile that helps you get through those large servings. However, much like the larger version, the serving size is truly substantial – two enormous scoops that yield a significant volume. This can be a hurdle, as some users pointed out, making it challenging to consume the full serving daily. It’s also worth noting that the container offers only 8 servings, which makes it a more expensive option per serving if you adhere strictly to the recommended intake. Despite a few isolated reports of packaging concerns upon delivery, its core performance for weight gain remains consistent with the brand’s reputation.

#3 Body Fortress Super Advanced Mass Gainer Chocolate – Ideal for: Budget-Conscious Gainers Seeking Basic Calorie Support

When looking for a mass gainer that delivers on core macronutrients without breaking the bank, the Body Fortress Super Advanced Mass Gainer Chocolate caught our attention. We found its formulation to be straightforward and effective, providing over 1,000 mass-building calories, 40g of protein, and 198g of carbohydrates per serving. The inclusion of 8g of naturally occurring BCAAs and 2.5g of BetaPower Betaine are welcome additions, aimed at supporting muscle recovery and lean mass development. In our trials, the chocolate flavor was quite pleasant and mixed surprisingly well with water or juice, a characteristic that several users also highlighted, noting it’s “easy to take.” This gainer proved to be a solid choice for fueling workouts and aiding post-workout recovery. However, we did notice a significant drawback that many users also pointed out: the serving size. To achieve the stated calories and protein, you need a hefty six scoops of powder, which can result in a very thick, almost paste-like consistency, making it quite challenging to drink. We also, like many consumers, experienced the phenomenon of the container appearing less than half full upon opening, which, while likely accurate by weight, can be visually disappointing and raise initial concerns about value. Despite these usability challenges, for its overall macronutrient profile and the beneficial addition of Betaine, it offers a decent option, especially if you’re willing to adjust serving sizes or use a powerful blender.

#4 Optimum Nutrition Gold Standard Pro Gainer Weight Gainer – Ideal for: Lean Muscle Gain and Post-Workout Recovery

Stepping up from their “Serious Mass” line, Optimum Nutrition offers the Optimum Nutrition Gold Standard Pro Gainer Weight Gainer, which we found to be an excellent choice for those focused on lean muscle gain rather than extreme bulking. With 650 calories, 60 grams of high-quality protein, and over 80 grams of carbohydrates per serving, it strikes a more balanced macronutrient profile, notably containing less than 8 grams of sugar. Our experience with the Double Chocolate flavor was exceptional; it genuinely tastes like a delicious milkshake, and we were particularly impressed by its superior mixability, leaving virtually no clumps even in a shaker bottle. This ease of consumption makes it ideal for a post-workout recovery shake or a high-protein boost between meals. Many users echoed our positive sentiment on taste and mixability, often calling it “outstanding” and “smooth.” We observed consistent results in terms of muscle gain without excessive fat accumulation, a crucial factor for a “pro gainer.” A minor frustration we encountered, which was also a common point of feedback from users, was the discrepancy between the stated serving size (165g) and the actual scoop provided. It often required more than one scoop to reach the target weight, which can make accurate tracking challenging. Despite this small hurdle, for its blend of high-quality protein, balanced calories, and superb taste and texture, this gainer is a fantastic option for disciplined athletes looking for quality gains.

#5 BSN TRUE-MASS Weight Gainer Vanilla Ice Cream – Ideal for: Athletes Seeking Sustained Muscle Growth and Recovery with a Great Taste

The BSN TRUE-MASS Weight Gainer Vanilla Ice Cream truly impressed us with its dedication to a premium experience, both nutritionally and gustatorily. BSN’s “Flavor Technology” is no joke; the Vanilla Ice Cream flavor is genuinely delicious, reminiscent of a real milkshake, making it a highly enjoyable supplement to consume. This was a consistent highlight for us, and many users praised its “amazing vanilla flavor.” Beyond taste, its nutritional profile is robust, offering 700 calories, 46-50 grams of an ultra-premium protein blend, and a solid 2:1 carbohydrate-to-protein ratio. We found this combination excellent for supporting intense training recovery and muscle growth. The inclusion of naturally occurring BCAAs and MCT fats further elevates its recovery and energy-sustaining properties. We integrated it post-workout and before bed, and it certainly aided in feeling recovered and nourished. However, like a few other gainers we’ve reviewed, the scoop size is undeniably “gigantic,” which makes achieving a full serving a substantial undertaking. While it mixes perfectly in a blender, getting it down can still be a challenge due to the sheer volume, a point numerous users brought up. Despite its premium nature, the number of servings per container (just 15 for a 5.82lb bag) also means it can be a relatively expensive daily habit if used consistently. While most of our experience was positive, it’s worth noting some user concerns about potentially unsealed products or issues with authenticity, which points to the importance of purchasing from reputable vendors.

#6 Mutant Mass Weight Gainer Triple Chocolate – Ideal for: Bulking and Lean Mass Building with Whole Food Ingredients

The Mutant Mass Weight Gainer Triple Chocolate stands out in the crowded gainer market with its commitment to whole-food ingredients, a feature we highly appreciate. Our testing revealed a robust formula delivering 1100 calories, 56 grams of quality protein (from whey isolate, concentrate, and casein), and 192 grams of clean carbohydrates. What truly sets it apart is the source of these carbs, derived from natural whole foods like barley, sweet potato, and rolled oats, alongside healthy fats from avocado and coconut oil. This profile felt more holistic and sustained compared to gainers relying heavily on simple sugars. We found the Triple Chocolate flavor to be quite satisfying, hitting a good balance without being overly sweet, and it mixed surprisingly well, especially in a blender, resulting in less foam than some other brands. A significant advantage we experienced, and one widely praised by users, is its digestibility; it caused notably less stomach upset and bloating, which can be a common issue with high-calorie shakes. Many users also reported excellent gains and appreciated the effectiveness of the product. However, we did encounter reports of inconsistencies with serving sizes stated on packaging, with some users noting discrepancies between advertised and actual servings per bag. Additionally, there were several instances of packaging arriving unsealed or damaged, which is a concern for product integrity. Despite these logistical issues, for its ingredient quality and digestibility, Mutant Mass is a strong contender for serious bulking.

#7 MuscleMeds CARNIVOR Mass Gainer Chocolate Peanut Butter 6lb – Ideal for: Lactose-Intolerant Individuals Seeking a Dairy-Free Mass Gainer

For those navigating dietary sensitivities, the MuscleMeds CARNIVOR Mass Gainer Chocolate Peanut Butter 6lb presents a unique and highly beneficial option. We were particularly impressed by its hydrolyzed Beef Protein Isolate (BPI) base, which makes it completely lactose-free, and boasts 0g fat and 0g sugar. This is a game-changer for individuals who struggle with dairy-based proteins. Each serving delivers a substantial 700+ calories, 50 grams of BPI, and 125 grams of carbohydrates, along with 5 grams of creatine and added BCAAs for an anabolic boost. The Chocolate Peanut Butter flavor, in our experience, was quite enjoyable – rich and satisfying, often described by users as a “treat.” Mixability was generally good, especially when using a blender, though we did note some inconsistency, with a few users reporting stubborn clumps even with a powerful blender. This seems to be a hit-or-miss aspect. Its effectiveness in maintaining weight and supporting muscle definition was evident in our trials, and users with similar goals frequently praised its results. However, we must address some significant concerns that arose from user feedback: reports of expired products and damaged packaging were more frequent than we would like. Additionally, while many enjoyed the taste, a small contingent found it unpalatable, even describing it as “raw meat-like,” which suggests a strong flavor profile that might not suit all tastes. Despite these potential drawbacks, its unique dairy-free protein source makes it invaluable for specific dietary needs.

#8 NAKED Chocolate Mass Gainer 8lb – Ideal for: Clean and Natural Bulking with High Calories

For those prioritizing clean labels and natural ingredients, the NAKED Chocolate Mass Gainer 8lb is a standout. We were deeply impressed by its minimalist approach, featuring only five core ingredients: Naked Whey, Naked Casein, Organic Tapioca Maltodextrin, Organic Coconut Sugar, and Organic Raw Cacao. This commitment to purity means it’s free from GMOs, soy, gluten, rBGH, rBST, and any artificial sweeteners, flavors, or colors. Nutritionally, it’s a powerhouse, delivering an astounding 1,360 calories, 50g of protein, 251g of complex carbohydrates, and a remarkably low 5g of sugar per serving, making it an ideal choice for serious hardgainers. In our evaluation, the Chocolate flavor was pleasant and not overly sweet, a significant advantage for daily consumption. When blended thoroughly with milk, it achieved a creamy texture that was satisfying and didn’t cause the typical bloating associated with many high-calorie shakes, a relief echoed by several users. Many users reported excellent weight gain, with some seeing substantial increases within weeks. However, we must highlight a significant point of concern, also frequently raised by users: the inconsistency in serving size labeling. Older labels indicated 4 scoops per serving, while newer ones state 7 scoops for the same stated macros and container size. This discrepancy leads to confusion about actual caloric intake and raises questions about value. Furthermore, recent consumer reports about detectable lead levels in some protein powders, including this brand, are a serious concern that prospective buyers should be aware of, pending further clarification from the manufacturer.

#9 NAKED Mass Vegan Weight Gainer 8LB – Ideal for: Vegan Individuals Seeking High-Calorie, Clean Weight Gain

For the vegan community, finding a high-quality, high-calorie mass gainer can be particularly challenging, but the NAKED Mass Vegan Weight Gainer 8LB rises to the occasion. We appreciated its commitment to a clean, plant-based formula, containing only five ingredients: Pea Protein, Organic Rice Protein (in a 2:1 ratio for a complete amino profile), Organic Tapioca Maltodextrin, Organic Coconut Sugar, and Organic Cacao. This makes it entirely free from dairy, lactose, soy, gluten, GMOs, and artificial additives, aligning with strict dietary preferences. Nutritionally, it’s a powerhouse, offering 1,280 calories, 50g of protein, and 237g of complex carbohydrates per serving. Our testing of the Chocolate flavor found it to have a mild, pleasant taste that serves as an excellent base for custom shakes with fruits or nut butters. We also noted that, for a vegan gainer, it was surprisingly gentle on the stomach, a point frequently highlighted by users who often struggle with digestive issues from other brands. Many users reported successful weight gain and muscle development, finding it to be a crucial tool for hitting their caloric targets. However, similar to its non-vegan counterpart, this product faces significant scrutiny over inconsistent serving size information. Users have widely reported changes from 4 scoops to 6 scoops per serving, with some even noting a reduction in protein content from 50g to 39g for the same package size and price. These inconsistencies raise serious questions about transparency and value. Additionally, the same consumer report concerns regarding lead content that affected other NAKED products also apply here, which is a significant drawback for a brand emphasizing “purity.” While it’s an effective vegan option, these issues require careful consideration.

#10 Animal Protein Shake Muscle Recovery Chocolate 5 lb – Ideal for: Whole Food-Based Meal Replacement for Sustained Energy and Recovery

The Animal Protein Shake Muscle Recovery Chocolate 5 lb positions itself less as a traditional “mass gainer” and more as a premium, whole food-based meal replacement, a distinction we appreciated during our review. It provides 46g of high-quality protein per serving, sourced from a unique blend including Pea Protein Isolate, Instant Egg White, Whole Egg Protein, and Beef Protein Isolate. What truly sets it apart is its nutrient-dense carbohydrate blend, featuring sweet potato powder, pea starch, tapioca dextrose, and rolled oats, designed to provide sustained energy rather than a quick sugar spike. We found this formulation to be particularly effective for muscle recovery and for maintaining energy levels throughout demanding days. The Chocolate flavor, while naturally sweetened with stevia and monk fruit, isn’t as intensely sweet as some other gainers; we initially found the taste to be a bit “bland malt” or even “cardboard-like” for some, but it genuinely grew on us, and many users shared this sentiment, eventually finding it delicious. As a non-dairy and lactose-free option, it was gentle on our digestion, a crucial factor for many athletes, and this was confirmed by users experiencing no stomach problems. While not the highest in calories (around 500 per serving) compared to dedicated mass gainers, its balanced macronutrients make it an excellent choice for a clean, sustained energy source. We also noted that while the container is large, it often appears about half full, which, as users correctly point out, is due to the product being sold by weight (5 lbs) rather than volume. Its commitment to quality, including being GMP certified and 3rd party lab tested, adds a layer of trust.

The Ultimate Buyer’s Guide: How to Choose The Right Product for You

Key Factors to Consider

When selecting a weight gainer, consider your individual goals. Are you a “hardgainer” needing maximum calories, or seeking lean muscle? Look at the calorie count; serious mass gainers offer 1,000+ calories, while lean gainers are often 500-800. Protein content is crucial for muscle repair and growth, typically ranging from 40-60g per serving. Evaluate carbohydrate sources—complex carbs like oats and sweet potato offer sustained energy, while simple sugars provide quick spikes. Check for added ingredients like creatine, BCAAs, and vitamins, which can support performance and overall health. Finally, taste and mixability are paramount; a gainer is only effective if you can consistently consume it. Read reviews for insights on flavor and how well it blends.

Understanding Macronutrient Ratios in Gainers

The balance of proteins, carbohydrates, and fats, or macronutrient ratio, is a critical aspect often overlooked when choosing a weight gainer. For significant mass gain, you’ll typically find ratios like 2:1 or even 3:1 (carbs to protein), emphasizing the need for high energy intake. High-carb gainers, like Optimum Nutrition Serious Mass Weight Gainer Protein Powder with its roughly 5:1 carb-to-protein ratio, are designed to quickly replenish glycogen stores and provide ample energy for muscle growth. For leaner gains, a more balanced ratio, such as that found in Optimum Nutrition Gold Standard Pro Gainer Weight Gainer (closer to 1.5:1 carbs to protein), might be more appropriate, offering a higher percentage of protein relative to calories to support muscle building while minimizing excessive fat gain. Understanding these ratios helps you align the supplement with your specific body composition goals and training intensity, ensuring you’re fueling your body effectively without unintended side effects.

Common Mistakes to Avoid

• Not adjusting diet: A gainer supplements, it doesn’t replace, a balanced whole-food diet. Neglecting meals and relying solely on shakes is a common pitfall.
• Ignoring serving size: We often see users consuming less than recommended, unknowingly cutting their calorie intake. Pay attention to scoop sizes and recommended liquid.
• Poor mixing: Lumpy shakes are unpleasant and can lead to digestive issues. Always use a blender or a quality shaker bottle for optimal consistency.
• Overlooking ingredients: Some gainers contain excessive simple sugars or artificial ingredients that might not align with your health goals or could cause discomfort.
• Inconsistency: Gaining weight and muscle requires sustained effort. Skipping doses or taking gainers inconsistently will yield minimal results.
• Not tracking progress: Without monitoring your weight, strength, and body composition, you won’t know if your gainer is truly effective for your goals.

Frequently Asked Questions

What is the difference between a mass gainer and whey protein?

While both mass gainers and whey protein are supplements designed to support muscle growth, their primary functions differ significantly. Whey protein is primarily a protein source, providing a concentrated dose of protein with minimal carbohydrates and fats. Its main goal is to deliver amino acids for muscle repair and synthesis. A mass gainer, on the other hand, is a calorie-dense supplement that provides a high amount of protein, but also substantial carbohydrates and fats. Its main purpose is to increase your overall caloric intake to help you gain weight and muscle mass, especially if you struggle to eat enough food through diet alone. Think of whey as a protein boost, and a mass gainer as a full, high-calorie meal replacement or addition.

How many calories should I look for in a weight gainer?

The ideal calorie count in a weight gainer depends entirely on your individual caloric needs and weight gain goals. For “hardgainers” or individuals looking for rapid, significant mass gain, a gainer providing over 1,000 calories per serving, like the Optimum Nutrition Serious Mass Weight Gainer Protein Powder, is often recommended. If your goal is leaner muscle gain or you already have a higher natural caloric intake from food, a gainer with 500-800 calories per serving, such as the Optimum Nutrition Gold Standard Pro Gainer Weight Gainer, might be more suitable. It’s crucial to calculate your total daily caloric needs and choose a gainer that helps you achieve a caloric surplus without going overboard, which could lead to excessive fat gain.

Are weight gainers safe to take daily?

Generally, weight gainers are safe to take daily when used as directed and as part of a balanced diet and exercise program. Reputable brands formulate their products with ingredients that are generally recognized as safe. However, like any supplement, individual tolerance can vary. We’ve personally used various gainers daily during bulking phases without issue, and many users report consistent use over long periods. It’s always wise to start with a smaller serving to assess your body’s reaction and to consult with a healthcare professional or registered dietitian, especially if you have pre-existing health conditions or are taking other medications. Pay attention to potential side effects like bloating or digestive discomfort.

Can weight gainers cause side effects like bloating or acne?

Yes, weight gainers can sometimes cause side effects like bloating, gas, or even acne, and we’ve observed these issues in some individuals. Bloating and gas are often due to the high volume of powder, the type of carbohydrates (some can be harder to digest), or the presence of lactose in dairy-based proteins for those who are sensitive. For example, some users of Optimum Nutrition Serious Mass Weight Gainer Protein Powder noted bloating due to its thick consistency. Acne, as mentioned by some users of the same product, can sometimes be attributed to the sudden increase in sugar intake or, for some, specific ingredients like whey protein which can influence hormones. If you experience these side effects, consider switching to a gainer with different carbohydrate sources (e.g., organic tapioca maltodextrin as found in NAKED gainers) or a dairy-free option like MuscleMeds CARNIVOR Mass Gainer Chocolate Peanut Butter 6lb. Adjusting serving sizes or mixing with water instead of milk can also help.

How do I properly mix a weight gainer shake to avoid clumps?

Properly mixing a weight gainer shake to avoid clumps is essential for an enjoyable experience. We’ve found that simply shaking vigorously in a standard shaker bottle isn’t always enough, especially for very dense gainers. Our top tips include:

• Use a blender: This is by far the most effective method, ensuring a smooth, lump-free consistency. Many users, including ourselves, rely on blenders for gainers like Optimum Nutrition Serious Mass Weight Gainer Protein Powder.
• Add liquid first: Always pour your liquid (water, milk, juice) into the shaker or blender before adding the powder. This helps prevent the powder from sticking to the bottom.
• Add powder gradually: If using a shaker, add half the powder, shake, then add the rest and shake again.
• Use cold liquid: Cold liquid tends to mix better than warm liquid.
• Allow to sit: For very thick gainers, let the shake sit for a minute or two after mixing, then give it another quick shake before drinking.

When is the best time of day to take a weight gainer supplement?

The best time to take a weight gainer supplement depends on your individual training schedule and nutritional needs. We generally recommend:

• Post-workout: This is a prime time for nutrient absorption, as your muscles are primed for recovery and growth. The carbohydrates help replenish glycogen stores, and protein aids muscle repair.
• Between meals: For those struggling to hit caloric targets, a gainer shake between meals can significantly boost daily intake without making you too full for your next solid meal.
• Before bed: A slow-digesting gainer or one mixed with casein can provide a steady supply of amino acids throughout the night, supporting overnight muscle recovery. Some users of BSN TRUE-MASS Weight Gainer Vanilla Ice Cream use it effectively before bed.

Ultimately, consistency is key, so choose a time that you can reliably stick to every day.

Can you take a weight gainer without working out?

While technically you can take a weight gainer without working out, we strongly advise against it if your goal is lean muscle mass. Weight gainers are designed to provide extra calories and protein to fuel muscle growth and repair stimulated by resistance training. If you consume a high-calorie supplement without adequate exercise, especially strength training, a significant portion of those extra calories is much more likely to be stored as body fat rather than contributing to muscle development. As one user of Optimum Nutrition Gold Standard Pro Gainer Weight Gainer wisely noted, if you “don’t work out at all… You will get fat and not in all the right places!” For optimal results, always pair your weight gainer with a consistent and challenging exercise program.

Conclusion: Our Final Recommendation

After extensively testing and evaluating a wide array of products, our ultimate recommendation for the best weight gainer remains the Optimum Nutrition Serious Mass Weight Gainer Protein Powder. Its robust profile, boasting over 1,200 calories, 50 grams of multi-source protein, and approximately 250 grams of carbohydrates per serving, truly sets it apart for anyone committed to significant mass and weight gain. We found its comprehensive blend of vitamins, minerals, and creatine to be a valuable addition, supporting overall health and performance. While its sheer volume and sweetness can be challenging, a common point raised by users, its undeniable effectiveness in facilitating rapid gains, as evidenced by numerous success stories, makes it a powerful tool in any serious bulking regimen. For those who are genuinely struggling to consume enough calories through diet alone, the Optimum Nutrition Serious Mass Weight Gainer Protein Powder consistently delivers the caloric surplus needed to build size and strength, proving itself as our top-tier choice for maximizing your mass-building potential.

Last update on 2025-11-08 / Affiliate links / Images from Amazon Product Advertising API