Best Mass Gainers in 2025 (Top 10: Optimum Nutrition, MuscleTech and More)
Looking for the best mass gainers to boost your bulk? Find out which supplements are effective, safe, and deliver the best results for muscle and weight gain.
Time to stop getting bigger by accident. You’ve been training hard; now you need reliable calories that actually help you gain muscle, not just guilt.
Pick a gainer that matches your goal. If you want clean, easy-to-digest calories choose a short-ingredient formula. If you need a huge calorie punch to hit a daily surplus, pick the dense, carb-heavy option.
Contents
- The Best Mass Gainers
- All-Natural Clean Chocolate Mass Gainer
- Clean, Grass-Fed High-Calorie Gainer
- Pro Gainer Lean High-Protein Formula
- High-Calorie Whey + Casein Gainer
- Serious Mass Chocolate High-Calorie Gainer
- Classic High-Calorie Serious Mass Gainer
- Lean-Profile Rival Nutrition Clean Gainer
- Extreme Calorie Mass Tech Gainer
- High-Protein Creatine-Enhanced Gainer
- High-Protein Chocolate PB Puffs Gainer
- Final Thoughts on the Best Mass Gainers
- What Are Mass Gainers?
- How to Choose the Best Mass Gainers
- Check Out the Best Mass Gainers
- Also Check Out Other Helpful Articles
- Video About the Best Mass Gainers
The Best Mass Gainers
All-Natural Clean Chocolate Mass Gainer
You’ll appreciate a short, recognizable ingredient list with no artificial flavors or fillers and strong tolerance for sensitive stomachs. It’s ideal when you want high calories from fewer, cleaner sources, though it costs more per serving.
Pros
- Very clean ingredient list (few whole-food ingredients)
- GMO-free, soy-free, gluten-free, no artificial additives
- Gentle on digestion compared to many gainers
Cons
- Pricier per serving than mainstream gainers
- Fewer servings per container for some budgets
Clean ingredients and user experience
NAKED Chocolate Mass Gainer focuses on providing a high-calorie shake with a minimal and transparent ingredient list. If you’re sensitive to artificial additives or prefer real-food sources, this gainer gives you calories without compromise on ingredient quality.
What makes it stand out
The formula uses recognizable ingredients like whey, casein, organic maltodextrin, coconut sugar, and raw cacao. Many users report less bloating and better overall tolerance compared with heavily processed gainers.
- Only five main ingredients and no artificial sweeteners or colors
- ~1,360 calories per serving depending on mix and liquid
Practical considerations
Expect to pay more per serving, but the trade-off is fewer digestive issues and cleaner macros. This product works well when you pair it with a structured training plan and whole-food meals, and it blends well in both shakers and blenders. If budget is a concern, consider alternating this with a more economical gainer to balance quality and cost.
Clean, Grass-Fed High-Calorie Gainer
You’ll get a cleaner, whole-food-focused mass gainer that still delivers a meaningful calorie and carb profile without artificial flavors. The grass-fed whey and selected carbohydrate sources make it a premium pick for health-conscious bulks.
Pros
- Clean ingredient list with grass-fed whey
- Thoughtful carb sources (oat flour, sweet potato powder)
- Lower filler and artificial additives
Cons
- Higher price per serving than mass-market gainers
- Moderate calorie count (not as extreme as some competitors)
Clean calories for serious gainers
Transparent Labs Mass Gainer focuses on quality, delivering calories from more recognizable, whole-food-derived ingredients. If you want to avoid overly processed fillers and artificial additives while still hitting a caloric surplus, this is one of the cleaner options available.
Ingredients and performance
The formula leans on grass-fed whey protein and nutrient-dense carb sources to support lean mass and recovery, with added creatine for strength and endurance benefits.
- About 770 calories per serving from whole-food sources
- 53 g grass-fed whey protein and ~110 g carbs per serving
- 3 g creatine per serving for strength support
Practical use and limitations
You should expect a premium price but a pleasant post-drink feeling with fewer gut issues for sensitive users. It’s not the highest calorie-per-dollar option, but it’s great if you prioritize ingredient quality and digestive comfort. Mix with cold water or milk and adjust serving size to match your daily calorie goals.
Pro Gainer Lean High-Protein Formula
You get a high-protein, moderate-calorie gainer aimed at supporting steady, lean muscle growth rather than quick fattening. It balances quality protein sources and digestibility, making it a sensible daily recovery shake option.
Pros
- High protein per serving (≈60 g)
- Moderate calories (≈650) for lean bulks
- Multiple protein sources for sustained release
Cons
- Less calorie-dense than extreme gainers
- Pricier per serving compared to basic mass formulas
Who this fits
Optimum Nutrition Gold Standard Pro Gainer is designed for you if you want quality proteins and a moderate calorie boost — ideal for lean bulking and post-workout recovery. It’s not built to be the largest calorie source, but it provides substantial protein to support gains without excessive carbs.
Nutritional highlights
The product uses a multi-source protein blend to deliver both fast and slower-digesting proteins, which helps sustain amino acid delivery throughout the day. That makes it useful as a meal replacement or recovery shake.
- Approximately 650 calories per serving
- Around 60 g of blended protein per serving
- Balanced carbohydrate profile to support recovery
Practical advice
Use it as a complement to whole-food meals and a structured training plan to favor lean mass gains. If your primary need is sheer calorie volume for rapid bulking, you’ll want a denser gainer; if you want controlled weight gain and strong recovery, this is a solid choice.
High-Calorie Whey + Casein Gainer
You get an extremely calorie-dense formula that helps you hit a large daily surplus without constant meal prep. The blended protein profile and added creatine make it practical for strength-focused bulks, though expect sizable servings and higher sugar content.
Pros
- Very high calories per serving (≈1280)
- Blended proteins (whey, isolate, casein) for varied absorption
- Includes creatine, BCAAs, and glutamine for recovery
Cons
- Large serving sizes can be difficult to finish
- Relatively high sugar and carbs compared to cleaner gainers
What it is and who it's for
Dymatize Super Mass Gainer is a classic, high-calorie mass gainer built to help you consume a large surplus without multiple meals. You’ll find a blend of fast and slow proteins, creatine, BCAAs, and a very high carbohydrate load designed for hard gainers and athletes who need rapid weight gain.
Key benefits and composition
If you're short on time but need calories, this product does the heavy lifting. Its composition supports both immediate post-workout protein needs and sustained amino acid delivery throughout the day.
- 52 g protein per serving from whey, isolate, and casein
- ~1,280 calories per full serving (with recommended liquid)
- Added creatine, BCAAs, glutamine, vitamins and minerals
Practical insights and limitations
You should expect very large scoop sizes and thick shakes — many users split a serving into two drinks. It mixes well with milk for added calories and flavor, and pairs especially well with peanut butter or oats when you want to up the calorie count further. That said, if you’re sensitive to sugar or prefer lean gains, the carb and sugar profile can be a drawback.
How to use it effectively
Cycle servings to match your appetite: start with half a serving and progress to a full serving as tolerated. Combining it with a solid resistance program and whole-food meals will minimize fat gain while maximizing muscle accrual. If you want cleaner calories, consider mixing with milk alternatives or reducing added sweeteners.
Serious Mass Chocolate High-Calorie Gainer
You’ll find a dependable chocolate-flavored mass gainer that gives a massive calorie and protein bump for fast gains. It’s easy to mix with milk or blend into shakes, but it’s still very calorie- and sugar-dense so plan usage around your goals.
Pros
- High caloric output per serving
- Creamy chocolate flavor that mixes well
- Adds vitamins and creatine for extra support
Cons
- Very large servings — blender recommended
- Not ideal if you want low-sugar or lean gains
Product snapshot
The chocolate version of Optimum Nutrition Serious Mass delivers the same robust nutritional profile as the vanilla variant but in a chocolate formulation. It’s built to rapidly increase your daily caloric intake and support intensive bulking cycles.
Key composition and benefits
If you struggle to eat enough solid food, this product offers a practical alternative. It contains a high carbohydrate load plus blended proteins and some added micronutrients to protect immune function during heavy training.
- Over 1,200 calories per 2-scoop serving (with recommended liquid)
- Around 50 g blended protein and extensive carbs
- Included creatine and multiple vitamins
Usage guidance and limitations
Start with a half serving if you’re not used to dense shakes. Blend with whole milk and add banana or nut butter to enrich calories and texture if needed. If you track macros carefully or are working toward a leaner bulk, use smaller servings and balance with whole-food protein sources.
Classic High-Calorie Serious Mass Gainer
You get a time-proven, high-calorie option that’s easy to find and mixes reliably. It’s a budget-friendly way to add a big calorie and protein boost, though the serving size is large and sweetness can be intense for some.
Pros
- Very high calories and carbs per serving
- Good value for price
- Includes vitamins and creatine for added support
Cons
- Large serving size may require a blender
- Can be very sweet and high in sugar
Overview
Optimum Nutrition Serious Mass is a tried-and-true weight gainer aimed at athletes and hard gainers who need an easy, high-calorie option. It delivers a huge calorie and carbohydrate load intended to help you reach and maintain a calorie surplus when paired with resistance training.
What you get and why it matters
The formula focuses on maximizing calories and workable protein to push recovery and mass gains. It’s simple to use and widely available, making it a convenient choice when you need consistent results.
- Approximately 1,200+ calories per 2-scoop serving (with recommended liquid)
- ~50 g blended protein per serving
- Over 200 g carbohydrates plus added vitamins and minerals
Practical tips and limits
You should blend it with milk if you want the full calorie effect and a creamier texture; a shaker may be insufficient for the full serving. If you’re dieting or sensitive to added sugars, plan accordingly because the sweetness and carb load are significant. For controlled bulks, start with half a serving and track weight and body composition.
Lean-Profile Rival Nutrition Clean Gainer
You’ll get a balanced gainer that emphasizes quality calories and a moderate calorie-per-serving approach to support lean muscle growth. It mixes well and tastes like a treat, making consistent use easier, though it’s not the most extreme calorie option.
Pros
- Balanced calories suitable for lean bulks (≈560 per serving)
- Good flavor and mixability
- Full-spectrum protein blend for sustained amino acids
Cons
- Lower overall calories than extreme gainers
- May require extra servings for very hard gainers
Overview and target audience
RIVAL NUTRITION Clean Gainer is formulated to provide you with quality calories without the excess that often accompanies extreme mass-gainers. If you want steady, controlled weight gain that’s easier to manage, this is a sensible option.
Nutrition profile and benefits
The gainer uses a mix of protein sources and diverse carbs to help fuel workouts and recovery while keeping the per-serving calories moderate. This makes it suitable as a daily meal replacement or post-workout shake.
- Approximately 560 calories per serving with a full-spectrum protein blend
- 30 g protein from whey, milk isolate, and micellar casein
Usage tips and trade-offs
Use this as part of a consistent caloric surplus and resistance training program. It’s a good starter gainer if you want to avoid rapid fat gain; however, if you’re a very hard gainer you may need to add additional shakes or whole-food meals to meet higher calorie targets.
Extreme Calorie Mass Tech Gainer
You’ll get an aggressive calorie and protein profile suited to those who struggle to gain weight despite heavy training. It’s powerful and effective, but the very high caloric load requires careful planning to avoid excessive fat gain.
Pros
- Very high protein (≈60 g) and calories per serving
- Includes creatine and other muscle-supporting ingredients
- Good value for extreme calorie needs
Cons
- Extremely large calorie density can lead to fat if overused
- Can be sweet for some and needs a blender
Who benefits most
MuscleTech Mass Tech Extreme 2000 is tailored to you if you are a very hard gainer who needs a substantial and reliable calorie boost. The formula is engineered for maximum mass increases and is particularly useful during aggressive bulking phases.
Formula highlights
This product combines high protein, creatine, and a very large carbohydrate load to fuel both gym performance and caloric surplus needs. Users commonly mix with milk and sometimes add additional calories via nut butters or fruit.
- Approximately 2,000+ calories per serving depending on mix-ins
- ~60 g protein and 5 g creatine per serving in many formulations
Use and cautions
Because the product is so calorie-dense, track body composition and scale intake if you begin to add unwanted fat. Plan resistance training and protein timing to make the most of the extra calories, and always blend thoroughly for best texture.
High-Protein Creatine-Enhanced Gainer
You’ll see noticeable weight increases quickly thanks to a very calorie- and protein-rich formula with added creatine. It can be thick and requires a blender, but it works well when your priority is fast mass gains.
Pros
- High protein and calorie content
- Includes creatine to aid strength gains
- Flavors commonly rated enjoyable
Cons
- Thick texture — blending required to avoid clumps
- Can be calorically excessive if not monitored
Intended use and strengths
MuscleTech High Protein Mass Gainer targets you when rapid increases in weight and strength are the goal. The formula packs both protein and calories to supply the fuel and amino acids needed for growth and recovery.
Composition and practical notes
Expect high protein per serving with an inclusion of creatine monohydrate to support short-term strength improvements. Users report very good flavor profiles (vanilla milkshake being popular) but emphasize the need for a blender to avoid texture problems.
- Substantial protein and calories per serving to drive gains
- Creatine included to complement resistance training
How to approach usage
Use this as part of a calorie-focused bulking plan and monitor your overall daily intake to avoid unwanted fat gain. Blend with whole milk for added calories and smoother consistency; start with smaller servings if you’re new to dense gainers.
High-Protein Chocolate PB Puffs Gainer
You’ll appreciate the flavor-first approach and a high protein per serving that supports muscle recovery. The brand is less ubiquitous than some rivals, so ingredient transparency and long-term user feedback are more limited.
Pros
- High protein per serving (around 54 g)
- Flavor-forward formulation (chocolate PB puffs)
- Designed to aid recovery and muscle support
Cons
- Less widely reviewed or studied than major brands
- May be more expensive per calorie compared to budget gainers
Who should consider it
Black Magic Wicked Huge targets you if flavor matters and you want a hefty protein hit alongside mass-gainer calories. The product leans into enjoyable tastes and a high protein count to help you recover after heavy training sessions.
Notable features
The emphasis here is on protein quantity and palatability, making it a practical choice when you want an enjoyable shake that still supports gains.
- Roughly 54 g protein per serving to support muscle repair
- Flavor profile designed to be dessert-like (chocolate PB puffs)
Practical notes and trade-offs
Because the product isn’t as widely documented as some legacy brands, you should try a smaller container first to check tolerance and taste. If you prioritize maximum calorie density per dollar, compare serving sizes and calorie counts across options. For best results combine with consistent resistance training and whole-food nutrition.
Final Thoughts on the Best Mass Gainers
If you want the cleanest, most stomach-friendly way to add quality calories, go with the All-Natural Clean Chocolate Mass Gainer. It has a short, recognizable ingredient list, no artificial flavors or fillers, and is ideal when you want calories from fewer, cleaner sources. Use it between meals and after workouts for steady, less-bloated gains — it’s pricier, but it’s the best balance of tolerance and ingredient quality.
If your main problem is getting enough calories — you train heavy and struggle to hit a big surplus — choose the High-Calorie Whey + Casein Gainer. Its very calorie-dense formula, blended proteins, and added creatine make it the practical pick for strength-focused bulks. Split servings (morning + post-workout) and be mindful of sugar intake, but expect faster weight increases when you use it consistently.
What Are Mass Gainers?
Mass gainers are high-calorie nutritional supplements designed to help individuals gain weight and build muscle mass efficiently. They combine proteins, carbohydrates, and fats in balanced proportions to increase daily calorie intake and support muscle recovery and growth.
For people who struggle to consume enough calories through solid foods alone, mass gainers are a practical and quick solution. They can be taken between meals or after workouts, ensuring you meet your nutritional goals with ease.
Beyond promoting muscle gain, mass gainers boost energy and speed up post-workout recovery, making them a great choice not only for athletes and bodybuilders but also for anyone looking to gain healthy weight.
How to Choose the Best Mass Gainers
Selecting the right mass gainer depends on your fitness goals, metabolism, and dietary needs. Below are key factors to consider when choosing the best mass gainers for your body.
1. For Healthy Weight Gain: Look for 40–55% Carbs and 25–35% Protein
A good mass gainer formula should balance macronutrients to provide energy and promote muscle growth without adding excess fat.
- Carbohydrates: 40–55% of total composition
- Protein: 25–35% (ideally 20–30 g per serving)
- Healthy fats: 15–25%, preferably from sources like MCT oil or coconut oil
Avoid products with less than 15 g of protein or more than 15 g of fat per serving. The key to building lean mass is maintaining a consistent calorie surplus combined with effective training.
2. Choose the Right Type of Carbohydrate for Your Goal
The carbohydrate type determines when and how to use your mass gainer effectively — whether before or after workouts.
For Pre-Workout Energy: Maltodextrin or Waxy Maize
These provide a steady energy release, improving endurance and performance. Maltodextrin offers quick energy but can spike insulin, while waxy maize digests more slowly for sustained energy. Combining both can help balance performance and recovery.
For Post-Workout Recovery: Dextrose
Dextrose is a fast-absorbing simple carb that rapidly replenishes glycogen stores and enhances muscle recovery. When combined with fast-digesting protein (like whey isolate), it promotes efficient muscle repair and growth — an ideal “anabolic combo” for maximizing gains.
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3. For Smooth Mixing: Prefer Isolated or Hydrolyzed Proteins
If you value convenience, choose mass gainers made with isolated or hydrolyzed proteins.
- Isolated proteins are ultra-filtered for better solubility and texture.
- Hydrolyzed proteins are pre-digested, improving absorption and digestion.
Carbohydrates like maltodextrin and dextrose also help with easy mixing, resulting in a lump-free shake that’s quick to prepare and easy on the stomach.
4. To Avoid Flavor Fatigue: Go for Neutral, Citrus, or Coffee-Based Flavors
To enjoy your mass gainer daily without getting tired of the taste, opt for neutral or mildly flavored options like vanilla, coconut, or dark chocolate. Citrus or coffee-based flavors are also refreshing and less sweet.
Avoid overly sugary flavors like strawberry or milk chocolate, which can become cloying over time. You can also blend your shake with fruits, coffee, or milk for variety without changing its nutritional value.
5. For a Better Taste: Choose Mass Gainers Sweetened with Stevia or Erythritol
Artificial sweeteners like aspartame and sucralose often leave a bitter aftertaste. Instead, look for mass gainers that use natural sweeteners such as stevia or erythritol. They provide pleasant sweetness without the unpleasant aftertaste or digestive discomfort.
If the flavor still feels too strong, blending the gainer with milk or a small amount of cocoa can help balance the taste.
6. For Lactose-Free or Vegan Options: Go with Pea or Rice Protein
If you’re vegan or lactose intolerant, plant-based mass gainers are the best choice. Look for products with:
- Pea protein: rich in BCAAs and easy to digest
- Rice protein: complete in essential amino acids and highly soluble
- Quinoa protein: nutrient-dense, fiber-rich, and highly digestible
- Soy protein: a complete amino acid profile but may cause discomfort for some
Combining pea and rice proteins provides a more complete amino acid profile, similar to whey, and ensures efficient muscle growth.
7. For Lean Muscle Gain: Choose 500–700 Calories per Serving
The calorie content of your mass gainer determines how much weight you’ll gain — and how clean that gain will be.
- 500–700 kcal per serving: Best for lean, controlled muscle gain
- 700–1000 kcal per serving: Ideal for fast metabolism or hard gainers
- 1000+ kcal per serving: Suitable for extreme energy expenditure or high-performance athletes
Dividing your servings throughout the day (e.g., two 300–400 kcal shakes) improves absorption, minimizes bloating, and helps you maintain steady progress.
Check Out the Best Mass Gainers
Still not sure which one to choose? Click the link below to see the best-selling products.
Also Check Out Other Helpful Articles
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Video About the Best Mass Gainers
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Sara Taylor has always loved storytelling. With a natural curiosity, she brings fresh perspectives to every article she works on.