Struggling to finish a second dinner plate or force down another chicken breast just to hit your calorie goal can make weight gain feel like a chore. Many standard protein powders only add a few hundred calories, leaving you short of the surplus needed for significant progress.
Weight gainer formulas are designed to solve that by packing a high-calorie blend of protein and carbohydrates into a single, manageable shake. I reviewed the Best Protein Powders For Weight Gain to find products that deliver a meaningful calorie boost with a protein source suited to your digestion and goals.
My overall pick for best protein powders for weight gain is the Optimum Nutrition Serious Mass Weight Gainer. It provides a substantial calorie and protein dose per serving, includes added vitamins and minerals, and is designed to be easily customized for even higher calorie intake. My top picks are just below.
Our Top Picks
| Product | NC Score | ||
|---|---|---|---|
| Best Overall Dymatize Super Mass Gainer with 52g Protein | 9.8 | Check Price on Amazon | |
| Best for Fruity Pebbles flavor Dymatize Super Mass Gainer with 1290 Calories | 9.8 | Check Price on Amazon | |
| Best for active lifestyles Naturade Weight Gain Drink Mix for Healthy Weight | 9.7 | Check Price on Amazon | |
| Best for budget price Optimum Nutrition Serious Mass Weight Gainer | 9.7 | Check Price on Amazon | |
| Best for foundational micronutrients Optimum Nutrition Serious Mass Weight Gainer | 9.7 | Check Price on Amazon | |
| Best for creatine inclusion Dymatize Super Mass Gainer with 52g Protein | 9.5 | Check Price on Amazon | |
| Best for vanilla flavor Optimum Nutrition Serious Mass Weight Gainer | 9.5 | Check Price on Amazon | |
Full Reviews
Dymatize Super Mass Gainer is a high-calorie weight gainer powder delivering 52g of protein and 1280 calories per serving. Its formula blends whey and casein for sustained protein delivery.
Pros
- +Substantial 1280-calorie serving for aggressive mass goals
- +Dual-protein blend for fast and sustained amino acid delivery
- +Includes 1g creatine monohydrate to support training output
Cons
- −Massive 245g carbohydrate load per single serving
- −Only eight servings in the 6-pound container
- −Vanilla flavor limits customization without added ingredients
Key Facts
Detailed Review
This is a high-calorie weight gainer built around a single, substantial serving containing 1280 calories and 52g of protein. The formula combines fast-digesting whey with slower-digesting casein, which I see as a practical approach for sustained amino acid delivery over several hours.
The trade-off for that caloric density is a massive 245g of carbohydrates per serving, which will suit those with very high energy demands but may be excessive for others. I'd consider this a reasonable pick for individuals struggling to meet extreme caloric surplus targets through whole food alone.
With only eight servings per container, it's geared toward a short-term trial or very focused mass-gaining phase rather than a long-term staple.
This is a high-calorie weight gainer powder delivering 1290 calories and 52g of protein per serving. Its formulation includes a blend of fast and slow-digesting proteins and is flavored like Fruity Pebbles cereal.
Pros
- +Extremely high calorie count per serving
- +Substantial protein dose from multiple sources
- +Includes 14 vitamins and minerals for nutritional support
Cons
- −Very large serving size of 6 pounds contains only 8 servings
- −No mention of third-party purity or potency testing
- −Contains no information about specific protein sources used
Key Facts
Detailed Review
Dymatize's Super Mass Gainer is built around an exceptionally high-calorie serving of 1290 calories, with 52g of protein from a blend of fast and slow-digesting sources. I see this formulation working best for individuals with very high daily caloric targets who struggle to eat enough whole food.
The product includes 10.7g of BCAAs and is flavored like Fruity Pebbles cereal, which may aid consistency for those consuming it daily. The main trade-off is the container size: a 6-pound tub yields only 8 servings, making it a bulk purchase commitment from the start.
I'd consider this a straightforward option for its stated goal of mass gain, though the specific protein sources and any third-party verification are not disclosed in the available data.
This is a vanilla-flavored, calorie-dense nutrition drink mix designed to help support weight maintenance. It offers a blend of carbohydrates, protein, vitamins, and minerals.
Pros
- +Explicitly formulated for healthy weight maintenance support
- +Designed for integration into active, demanding lifestyles
- +Mixable format adaptable to between-meal or on-the-go use
- +Over 100 years of brand history in nutrition
Cons
- −No specific protein or calorie dose per serving disclosed
- −Lacks third-party testing certification for ingredient verification
- −Vanilla flavor may not suit all taste preferences
Key Facts
Detailed Review
Naturade's Weight Gain Nutrition Drink Mix is a vanilla-flavored powder positioned for healthy weight support. I see this working best for active individuals or those with busy schedules who find it challenging to meet calorie needs through food alone.
The product is described as a calorie-dense blend of carbohydrates, protein, vitamins, and minerals, avoiding "extreme bulking formulas." It's designed for flexible use between meals or blended into smoothies.
My main assessment is this offers a straightforward approach, but the label lacks a disclosed protein or calorie dose per serving for precise planning. I'd consider this a reasonable option for general nutritional supplementation when more calories are needed.
This is a high-calorie weight gainer powder providing over 1,200 calories per two-scoop serving. It includes 50 grams of blended protein and over 250 grams of carbohydrates.
Pros
- +Extremely high-calorie serving for deliberate weight gain phases
- +Substantial protein dose per serving for muscle support
- +Includes a broad spectrum of essential vitamins and minerals
- +Powder format allows easy blending with other calorie sources
Cons
- −Two-scoop serving size results in a very large shake
- −Formula relies heavily on simple carbohydrates for calories
- −No specific third-party certification for banned substances listed
Key Facts
Detailed Review
Optimum Nutrition Serious Mass delivers a very large 1,250+ calorie serving from two scoops, built around over 250 grams of carbohydrates and 50 grams of protein. This makes it a tool for individuals whose primary goal is a substantial daily calorie surplus, not just added protein.
The trade-off for this calorie density is a very large serving size that creates a significant volume of liquid to consume. I'd consider this product specifically for bulking phases where diet alone falls short, as it's formulated more for total calorie intake than lean muscle definition alone.
Its inclusion of over 20 vitamins and minerals provides basic nutritional balance, but the formula is best viewed as a high-calorie foundation to be customized with other whole foods.
This is a high-calorie weight gainer powder delivering over 1,250 calories per two-scoop serving. It provides 50 grams of blended protein and over 250 grams of carbohydrates.
Pros
- +Substantial calorie load for significant weight gain goals
- +Complete macronutrient profile with high protein and carbs
- +Added micronutrient blend for foundational nutrition
- +Flexible powder format for customizing calorie intake
Cons
- −Large serving size requiring two scoops per use
- −High carbohydrate content not ideal for low-carb diets
- −Powder format demands preparation and blending
Key Facts
Detailed Review
Optimum Nutrition's Serious Mass is built around a two-scoop serving delivering over 1,250 calories, a defining feature for anyone struggling to consume enough calories through food alone. I see this working best for individuals in a dedicated bulking phase who need a significant, convenient calorie surplus.
The formula provides 50 grams of blended protein and over 250 grams of carbohydrates, aiming to support both muscle repair and energy replenishment. The inclusion of 20+ vitamins and minerals adds a layer of foundational nutrition often missing in pure calorie sources.
The main trade-off is the sheer volume per serving, which some may find challenging to consume regularly. I'd consider this a reasonable pick for its specific, high-calorie purpose, but not for general protein supplementation or low-carb routines.
This is a high-calorie weight gainer powder providing 52g of protein per serving from whey and casein blends. It includes 1g of creatine and 14 vitamins and minerals.
Pros
- +Substantial 52g protein dose from multiple protein sources
- +Calorie-dense formula supports high energy intake requirements
- +Includes creatine and micronutrients in a single serving
Cons
- −Large serving size requires significant preparation and consumption
- −High carbohydrate content may not suit all dietary approaches
- −Six-pound container size demands ample storage space
Key Facts
Detailed Review
This mass gainer is built around its 1,280-calorie serving, a substantial amount aimed at supporting significant muscle gain. The 52g of protein comes from a blend of whey and casein, which provides both rapid and sustained amino acid delivery.
The main trade-off is the sheer volume and density of each serving, which requires commitment to consume regularly. I see this working best for individuals with very high caloric needs who struggle to eat enough whole food.
It also incorporates 1g of creatine and 14 essential vitamins and minerals per serving, adding convenience for those seeking an all-in-one nutritional shake.
Optimum Nutrition Serious Mass is a high-calorie weight gainer delivering over 1,200 calories and 50 grams of protein per serving. Its formula includes over 250 grams of carbohydrates and 20-plus essential vitamins and minerals.
Pros
- +Extremely high calorie count per serving
- +Combined protein and carbohydrate formula
- +Added essential vitamin and mineral blend
- +Vanilla flavor for easy mixing and customization
Cons
- −Massive two-scoop serving size may be inconvenient
- −High carbohydrate load may not suit all diet plans
- −Requires blending with other ingredients for best taste
Key Facts
Detailed Review
Optimum Nutrition Serious Mass is built around a two-scoop serving delivering over 1,200 calories, a massive intake designed for intense bulking. The formula provides 50 grams of blended protein alongside over 250 grams of carbohydrates, aiming to support both muscle recovery and energy replenishment.
The inclusion of more than 20 essential vitamins and minerals adds a layer of nutritional completeness, which I see as a practical hedge against potential micronutrient gaps during high-calorie phases. This product is explicitly framed as a shake builder, with the suggestion to blend it with milk or calorie-dense foods.
I'd consider this a specialized tool for those struggling to meet extreme caloric needs through food alone. The trade-off is the sheer volume per serving, which requires a significant commitment to consuming and blending.
Buying Guide for Weight Gainer Protein Powders
A weight gainer supplement is only useful if it fits your total daily calorie target and your stomach can handle it. The difference between a product that works and one that sits in the pantry comes down to a few key details on the label.
Calorie and protein density per serving
The primary reason to choose a weight gainer over a standard protein powder is the calorie count. Look for the total calories per serving listed clearly on the nutritional facts panel.
Compare this number to your daily surplus goal. A product offering several hundred calories per scoop can replace a full meal, while a formula with over a thousand calories is designed for a single, high-calorie shake. The protein content should also be substantial, typically between 40 and 60 grams per serving, to support muscle maintenance alongside overall weight gain.
Protein blend and carbohydrate sources
Check the ingredient list for the types of protein used. Many weight gainers use a blend of whey protein concentrate, isolate, and casein. This combination provides both fast-absorbing protein post-workout and slower-digesting protein for sustained release, which can be more effective for muscle support throughout the day than a single source.
The carbohydrate source also matters. Formulas often use maltodextrin or other complex carbs to boost calories without excessive sweetness. Compared to a standard whey protein isolate, these blends prioritize calorie delivery over pure protein concentration.
Added nutrients and mixability
Because a weight gainer shake can replace a meal, some formulas include added vitamins and minerals to contribute to overall nutritional balance. This is not a substitute for a varied diet, but it can be a practical benefit.
Mixability is crucial with high-calorie powders. A product that clumps or leaves a gritty texture makes daily use a struggle. Look for mentions of instantized formulas or easy mixing, and consider that blending with milk or a nut butter, as many brands suggest, can further improve texture and calorie density.
Dietary compatibility and flavor options
If you follow a specific diet, check for allergen statements. Most weight gainers are dairy-based due to whey and casein, so they are not suitable for a dairy-free or vegan routine unless explicitly stated.
Flavor variety matters for long-term adherence. Having multiple flavor options, like chocolate, vanilla, or more unique varieties, helps prevent taste fatigue when consuming a product daily. Some brands also offer unflavored versions for maximum customization in smoothies or baked goods.
Once you match the calorie count to your goal and find a protein blend you tolerate, the right product simplifies adding calories to your day without constant cooking.
Why You Should Trust Us
Our recommendations are based on a research methodology focused on label transparency and ingredient quality. We analyze the specific protein forms, calorie density per serving, and added features like vitamin blends across competing products. Each product receives an NC Score based on these objective factors, not subjective taste tests or anecdotal reports. This content is for informational purposes only and is not intended as medical advice. Always consult with a healthcare provider before starting any new supplement regimen, especially if you have underlying health conditions.
Final Thoughts
Choosing a weight gainer comes down to whether its calorie and protein numbers align with your daily targets and whether its format fits your routine. The best option removes the guesswork from hitting a calorie surplus.
For most people looking to gain weight, the Optimum Nutrition Serious Mass Weight Gainer is the most straightforward choice. It delivers a high calorie and protein dose in a customizable format, includes added micronutrients, and comes from a brand with established manufacturing standards. It is designed for those who need a significant caloric boost.
If your calorie needs are more moderate or you prefer a simpler formula, the Naturade Weight Gain Nutrition Drink Mix offers a balanced approach without extreme bulking numbers. It is a sensible option for gentle, everyday support. For those focused purely on muscle gain alongside strength training, a product with a protein blend including casein for sustained release can be a practical choice.
The right weight gainer should fit seamlessly into your day, turning a nutritional challenge into a simple shake.
FAQs
How do you use a weight gainer protein powder effectively?
Weight gainers are most effective when consumed as a calorie-dense meal replacement or addition, typically post-workout or between meals. Mix the recommended serving with water, milk, or a milk alternative, and consider blending in ingredients like fruit, nut butter, or oats to further increase calories and improve satiety. Consistency is key, so choose a time of day you can stick with daily.
Can a weight gainer cause digestive discomfort?
The high calorie and carbohydrate content in some weight gainers can be difficult to digest, especially when starting. To minimize discomfort, begin with half a serving to assess tolerance, consume it with a meal, and ensure you are adequately hydrated. If you have a sensitive stomach or a known intolerance to ingredients like lactose, checking the label for specific protein blends and allergen statements is advisable. Consult a doctor or dietitian if you have persistent digestive concerns.
What is the difference between a weight gainer and a regular protein powder?
A weight gainer is formulated specifically to provide a high number of calories per serving, primarily from a blend of protein and carbohydrates, with the goal of supporting a calorie surplus. A regular protein powder, like a whey isolate, focuses on delivering a high concentration of protein with minimal calories, fats, and carbs, aimed at supporting muscle protein synthesis without adding significant calories.
Do you need to work out while taking a weight gainer?
A weight gainer provides extra calories that can lead to weight gain regardless of activity level, but the composition of that gain depends on your routine. Without resistance training, the surplus calories are less likely to support lean muscle development. For those looking to gain muscle mass, pairing a weight gainer with a structured strength training program is a common approach to direct the extra energy toward muscle growth.