10 Best Protein Powders For Gaining Weight in 2026
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For gaining weight, the Ultimate Nutrition Muscle Juice 2544 Mass Gainer earns our Best Overall spot by packing 1,020 calories and 55 grams of multi-source protein into every shake. The Dymatize Super Mass Gainer is our Best High-Calorie Mass Gainer for those who need 1,280 calories per serving, while the Transparent Labs Mass Gainer offers the Best Clean Ingredients for additive-free bulking.
Hardgainers and athletes who burn through calories know the struggle: eating enough whole food to tip the scale forward feels like a second job. A mass gainer bridges that gap by delivering a dense, drinkable calorie load with protein, carbs, and often extras like creatine and BCAAs.
We built this guide by analyzing manufacturer specifications, expert round-ups, and patterns in owner feedback. Our goal is to help you match the right shake to your metabolism, diet preferences, and budget, no hype, just the facts that matter.
Top 10 Protein Powders For Gaining Weight in the Market
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The Best Protein Powders For Gaining Weight, Reviewed
Ultimate Nutrition Muscle Juice 2544 Mass Gainer
What We Like
- 1020 calories per serving for weight gain
- 55g multi-source protein blend
- 13g BCAAs and 10g glutamine precursors
- Blends smoothly with shaker or spoon
Trade-offs
- 4-scoop serving requires mixing 18oz liquid
- Contains maltodextrin and crystalline fructose
A single serving delivers 1020 calories, 55 grams of protein, and 13 grams of BCAAs, enough fuel to make a real dent in a hardgainer’s daily surplus without forcing you to down multiple shakes. The multi-source blend combines fast whey with slow-digesting casein and egg white albumin, so your muscles get a steady stream of amino acids for hours after you drink it. That makes this tub a practical choice for anyone who struggles to eat enough whole food and wants a straightforward, calorie-dense option that fits around training or a busy day.
The trade-off is the serving size itself: four scoops mixed with 18 ounces of liquid means a fairly thick shake, and the carb matrix relies on maltodextrin and crystalline fructose rather than whole-food carb sources. If you tolerate those fine and just need the calories, Muscle Juice 2544 earns its spot as the most straightforward high-calorie option in the guide.
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Dymatize Super Mass Gainer
What We Like
- 1,280 calories per serving for rapid gains
- 52g protein with whey and casein blend
- Includes 1g creatine for strength support
Trade-offs
- Only 8 servings per container
- 1280 calories per serving is extremely high for many.
With 1,280 calories per serving, this mass gainer packs enough energy to help even the hardest gainers move the scale. The 52g protein blend combines fast-acting whey with slow-digesting casein, so your muscles get a steady supply of amino acids for hours after your shake. It also sneaks in 1g of creatine per scoop to support power output during training, plus a full lineup of vitamins and minerals to cover recovery basics. This is the go-to for anyone who finds it tough to consume enough calories and wants a no-nonsense, calorie-dense option to bulk up.
The carb load is significant: 245g per serving means this is a serious calorie bomb, not a sipper you can spread out. If you prefer a leaner gainer with more moderate macros, look at Rival Nutrition Clean Gainer, which delivers 550 calories and 97g carbs per serving for a lighter approach. But if your goal is maximum mass in minimum time and you can handle the volume, this product meets its stated nutritional targets.
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Optimum Nutrition Serious Mass Weight Gainer
What We Like
- Over 250g carbs for glycogen replenishment
- Includes creatine, glutamine, and BCAAs
- Customizable shake with milk or fruit
Trade-offs
- Large serving size requires commitment to drink
This is a dense, high-carb formula, so if you prefer a leaner gainer with fewer carbs per calorie, something like Transparent Labs Mass Gainer might feel easier to fit into your daily macros. Serious Mass is built for the person who wants a classic, no-nonsense calorie bomb and does not mind the bigger shake. It is a time-tested option for putting on mass when appetite is the bottleneck.
Transparent Labs Mass Gainer Protein Powder
What We Like
- 53g grass-fed whey protein
- 110g slow-digesting complex carbs
- 3g clinically dosed creatine
- No artificial sweeteners or fillers
Trade-offs
- 15 servings per container limits duration
- Contains 3g creatine, unsuitable for non-creatine users.
With 770 calories from sources like oat flour and sweet potato powder, this mass gainer delivers 53 grams of grass-fed whey protein and 110 grams of slow-digesting carbs per serving. The 3 grams of creatine monohydrate are a clinically dosed addition that supports strength and recovery. There are no artificial sweeteners, colors, or preservatives, and a Certificate of Analysis is available for purity.
BSN True-Mass Weight Gainer
What We Like
- 690 calories per serving for mass gain
- 2:1 carb-to-protein ratio for balanced gains
- MCT fats round out nutritional value
Trade-offs
- 16 servings per container limits long-term use
A 2:1 ratio of carbs to protein means this gainer prioritizes steady, manageable weight gain without the extreme sugar spike you get from higher-carb options. It delivers 690 calories and 50 grams of protein per serving from a blend that includes whey isolate, micellar casein, and egg whites. This makes it a great fit for anyone who wants to add mass gradually without feeling stuffed or sluggish, especially if you’re training hard and need quality fuel that tastes like a real milkshake.
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Rival Nutrition Clean Gainer Protein Powder
What We Like
- Naturally flavored with stevia
- 30g protein from three sources
- 97g multi-source carbs for energy
- Gluten free, no artificial colors
Trade-offs
- Only 30g protein per 550 calories
550 calories per serving means you get a solid calorie boost without the sky-high numbers that can leave you feeling sluggish. This Clean Gainer uses a blend of whey, milk, and micellar casein for 30g of protein, plus 97g of multi-source carbs from quinoa, blueberry, and oat fiber. It’s sweetened naturally with stevia and has no artificial dyes or fillers, so it’s a straightforward choice if you want to add weight without a bunch of extras you didn’t ask for.
A higher protein-to-calorie ratio or lower carb count calls for a leaner gainer. This product delivers 30 grams of protein from a blend of whey, milk, and micellar casein, which provides naturally occurring BCAAs and EAAs to support muscle recovery. The 550 calories come with 97 grams of multi-source carbs from quinoa, blueberry, ginger root, rice bran, and oat fiber, keeping added sugars to just 2 grams per serving. That carb profile makes it suitable for refueling after intense activity without a sugar spike.
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Forzagen Lean Gainer Premium Mass Builder
What We Like
- 1260 calories per serving for serious gains
- Natural carb sources: oats, yams, sweet potatoes
- 12-pound tub offers exceptional value
Trade-offs
- 4-scoop serving size means frequent refills
- 250g carbs per serving unsuitable for low-carb diets
A single serving packs 1260 calories, 50 grams of protein, and 250 grams of carbohydrates from oats, yams, and sweet potatoes. That is a lot of fuel in one shake, designed for people who have trouble eating enough to gain weight or build muscle.
The serving size itself is a factor: four scoops per shake means you will go through the tub faster than you might expect if you are used to smaller-portion gainers. And with 250 grams of carbs per serving, this is not a fit if you are watching carbohydrate intake or prefer a leaner macro split. For someone focused on packing on mass and willing to commit to a high-calorie routine, this tub delivers straightforward, no-fuss fuel.
NAKED Chocolate Mass Gainer
What We Like
- Only five natural ingredients
- NSF Certified for purity and safety
- No artificial sweeteners, flavors, or colors
- Gluten-free, soy-free, and GMO-free
Trade-offs
- Multi-phase protein blend requires consistent daily intake
- Contains 251g carbs per serving, not keto-friendly
With 1,360 calories per serving, this mass gainer delivers a high calorie count in a single shake, which can help reduce the number of shakes needed for weight gain. The five-ingredient list, whey, casein, organic tapioca maltodextrin, organic coconut sugar, and organic raw cacao, keeps the formula simple and transparent. That transparency, backed by NSF certification for purity, makes it a good fit for anyone who wants a natural option that still provides 50 grams of protein in each serving.
Two hundred fifty-one grams of carbs per serving comes mostly from tapioca maltodextrin. So if you’re watching your carb intake or prefer a lower-sugar mass gainer, this might feel heavy. Compared to Transparent Labs Mass Gainer, which offers 53 grams of protein with only 110 grams of carbs, Naked Mass is clearly built for the hard gainer who wants maximum calories in one shake, not for someone aiming for a leaner bulk. Stick with it consistently alongside your training, and the multi-phase whey-and-casein blend helps keep protein synthesis humming all day.
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Mutant Mass Extreme Gainer
What We Like
- 46 g protein from multi-source blend
- Real-food carbs for sustained energy
- Includes BCAAs and glutamine
Trade-offs
- Only one flavor option available
- Not suitable for those avoiding multi-source protein blends
Compared to the Dymatize Super Mass Gainer, which also delivers around 1,280 calories, Mutant Mass Extreme Gainer uses real-food carbohydrates instead of maltodextrin. That approach can feel thicker for some users. The product comes only in Triple Chocolate flavor, so if you prefer variety, you’ll be stuck with one taste.
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Optimum Nutrition Gold Standard Pro Gainer
What We Like
- 60g protein per serving
- 650 calories per serving
- Less than 8g sugar per serving
- Easy mixing formula
Trade-offs
- Not suitable for low-carb diets
- Contains whey protein, not for dairy-sensitive users
Sixty grams of protein in each serving is a standout number for anyone serious about packing on mass without downing endless shakes. That high-protein blend, paired with 650 calories and over 80 grams of carbs, gives you a dense, efficient way to fuel muscle growth after a tough session or to fill a calorie gap on busy days. The sugar stays under 8 grams, so you are getting most of those carbs from complex sources rather than a candy-like spike. This makes the Pro Gainer a smart fit for lifters who want a protein-forward weight gainer that does not rely on cheap sweetness.
The trade-off comes down to the carb load itself: at more than 80 grams per serving, this is not a lean gainer for anyone watching carbohydrate intake closely. The tub is also a hefty 10.2 pounds, which means it takes up real space in your cabinet. If your priority is maximizing protein per calorie and you do not mind the bulk, this is a focused, no-nonsense option.
How We Evaluated Protein Powders For Gaining Weight
We started with the numbers: calories per serving, protein content, carbohydrate source, and fat profile. Every product in our final list had to deliver enough calories and protein per serving to qualify as a legitimate weight-gain tool. We cross-referenced these specs against manufacturer documentation and expert commentary on what makes a mass gainer effective for hardgainers.
Our three core criteria were calorie density, protein quality, and ingredient transparency. A mass gainer with high calorie content is useless if the protein is low-quality or the carb source is pure sugar. We looked for multi-source protein blends (whey, casein, egg) that provide both fast and slow-digesting amino acids, and we favored products that list real food carbohydrates like oats or yams over simple maltodextrin alone.
This is a research-led evaluation, not a hands-on test. We cannot claim we shook every tub or tasted every flavor. What we can offer is a thorough, honest breakdown of what each product promises, what owners commonly report, and where the trade-offs live, so you can decide which shake fits your routine.
What To Look For In Protein Powders For Gaining Weight
The right mass gainer depends on your daily calorie target, your tolerance for large shakes, and how much protein you want per scoop. Here is what to check before buying.
Look for a mass gainer with enough calories per serving, a multi-source protein blend, and a carb-to-protein ratio that matches your goals. Avoid products with excessive added sugar or artificial fillers.
Calories Per Serving
Calorie density is the whole point of a mass gainer. Products range from 550 calories (Rival Nutrition Clean Gainer) to 1,280 calories (Dymatize Super Mass Gainer). If you struggle to eat enough, a higher-calorie shake like the Forzagen Lean Gainer at 1,260 calories can be a meal replacement. If you just need a supplement, a moderate 650-calorie option like the Optimum Nutrition Gold Standard Pro Gainer may fit better without overwhelming your stomach.
Protein Quality and Quantity
Protein per serving matters, but so does the source. A blend of whey concentrate, whey isolate, and casein provides a sustained amino acid release that supports muscle repair over hours. The Optimum Nutrition Serious Mass Weight Gainer delivers 50 grams of protein per serving, while the Rival Nutrition Clean Gainer offers 30 grams from three sources. Check the protein-to-calorie ratio: you want enough protein per calorie for efficient muscle building.
Carbohydrate Source and Sugar Content
Not all carbs are created equal. Whole-food carb sources like oats, yams, and sweet potatoes (found in Forzagen) offer sustained energy and fiber. Products that rely on maltodextrin and crystalline fructose, like the Ultimate Nutrition Muscle Juice, spike blood sugar faster but still fuel heavy training sessions. Watch for added sugar, some mass gainers pack 30-plus grams of sugar per serving, which can cause energy crashes and fat gain.
Mixability and Serving Size
A mass gainer is only useful if you can actually drink it. Four-scoop servings require plenty of liquid and can feel like a milkshake. The Ultimate Nutrition Muscle Juice blends smoothly with a shaker or spoon, while some thicker powders may need a blender. Consider your daily schedule: a high-calorie shake takes time to consume and digest.
- Check the serving size (scoops per shake) and whether you can realistically finish it.
- Look for a carb-to-protein ratio that fits your goals, 2:1 for balanced gains, higher for extreme bulking.
- Avoid products with artificial colors, flavors, or sweeteners if you prefer clean ingredients.
- Verify the number of servings per container to calculate how long a tub lasts.
- Consider flavor options, chocolate and vanilla are standard, but Mutant Mass Extreme Gainer only offers one.
The best mass gainer is the one you can consistently drink without dreading the next shake.
Protein Powders For Gaining Weight Compared
The table below compares the top ten mass gainers across calories, protein, carb source, and best-use scenarios so you can quickly spot the right fit.
| Product | Calories per serving | Protein per serving | Weight |
|---|---|---|---|
| Ultimate Nutrition Muscle Juice 2544 Mass Gainer | 1020 | 55g | 10.45 lb |
| Dymatize Super Mass Gainer | 1,280 | 52g | 6 lb |
| Optimum Nutrition Serious Mass Weight Gainer | 1,200 | 50g | 6LB |
| Transparent Labs Mass Gainer Protein Powder | 770 | 53g | 7.1 pounds |
| BSN True-Mass Weight Gainer | 690 | 50g | 5.8 pounds |
| Rival Nutrition Clean Gainer Protein Powder | 550 | 30g | 5 lb |
| Forzagen Lean Gainer Premium Mass Builder | 1260 | 50g | 12 lbs. |
| NAKED Chocolate Mass Gainer | 1,360 | 50g | 8lb |
| Mutant Mass Extreme Gainer | 1,270 | 46 g | 6 lbs |
| Optimum Nutrition Gold Standard Pro Gainer | 650 | 60g | 10.2 pounds |
Frequently Asked Questions
How many calories should a weight gainer shake have?
A good mass gainer should provide enough calories per serving. Hardgainers who struggle to eat enough may benefit from high-calorie options like the Dymatize Super Mass Gainer or Forzagen Lean Gainer. Start with a moderate shake and increase calorie density as your appetite adapts.
Can I use mass gainer instead of meals?
Mass gainers can replace a meal when you are short on time, but whole food should remain the foundation of your diet. High-calorie shakes like the Optimum Nutrition Serious Mass Weight Gainer are designed to supplement your intake, not fully replace balanced meals. Use them to fill calorie gaps between breakfast, lunch, and dinner.
What is the best protein powder for women to gain weight?
Women looking to gain weight can benefit from the same criteria as men: high calorie density, quality protein, and clean ingredients. The Transparent Labs Mass Gainer offers grass-fed whey and no artificial additives, while the BSN True-Mass provides a balanced 2:1 carb-to-protein ratio for gradual gains.
Do I need a mass gainer, or can I use regular protein powder?
Regular protein powder typically provides fewer calories per scoop, too low for significant weight gain unless you add milk, oil, or other high-calorie mixers. A dedicated mass gainer like the Ultimate Nutrition Muscle Juice delivers 1,020 calories per serving with carbs and fats built in. If you are asking whether it is necessary to use a supplement at all, the answer depends on whether you consistently hit your calorie target with food alone.
How do I choose between whey protein and a mass gainer?
Choose whey protein if you need a lean protein boost without extra carbs or calories, typically for cutting or maintenance. Choose a mass gainer if you are in a bulking phase and need to add extra calories per shake without cooking another meal. Weight gainer supplements like the ones in this guide are formulated specifically for that purpose.
The Bottom Line
The Ultimate Nutrition Muscle Juice 2544 Mass Gainer is our Best Overall pick for hardgainers who want a high-calorie, protein-rich shake that blends easily and provides both fast and slow-digesting proteins. If you need extreme calorie density, the Dymatize Super Mass Gainer delivers 1,280 calories per serving, while the Transparent Labs Mass Gainer offers the cleanest ingredients for those avoiding artificial additives.
Budget-conscious shoppers should look at the Rival Nutrition Clean Gainer for a naturally sweetened, moderate-calorie option. For the highest protein per serving, the Optimum Nutrition Gold Standard Pro Gainer gives you 60 grams in a manageable 650-calorie shake.
The single most important factor is consistency. Choose a mass gainer you can drink every day without forcing it down, and pair it with a solid training routine for the best results.
