10 Best Weight Gainer Shakes

The best weight gainer shake depends on how many calories you actually need, how much preparation you will tolerate, and whether your priority is athletic bulking, a moderate surplus, or convenient nutritional support. This list includes powder formulas that deliver roughly 550 to 1,290 calories per labeled serving, plus ready-to-drink options that provide a smaller, fixed calorie dose without blending. BOOST Very High Calorie ranks first for convenience and controlled calorie support, while Dymatize Super Mass and Optimum Nutrition Serious Mass are better suited to aggressive bulking. Vegan and ingredient-conscious buyers have strong alternatives from NAKED, and moderate-surplus shoppers can avoid the enormous serving sizes of full mass gainers.

I prioritized the calories and protein delivered by the labeled serving, whether those figures require milk or other additions, serving size, preparation demands, dietary compatibility, package format, and useful extras such as vitamins, minerals, creatine, BCAAs, fiber, or third-party certification. Ready-to-drink nutritional shakes were evaluated as a separate use case from bodybuilding powders because they offer smaller fixed portions and less preparation. The ranking favors products that can support a clearly defined buyer need while keeping their main limitation visible, such as very large servings, dairy ingredients, lower calorie density, or a preparation condition that changes the headline nutrition.

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Top-rated Comparison

Our Top 10 Picks

Best ready-to-drink calorie support

BOOST Very High Calorie Nutritional Drink

For low appetite or no-blender convenience, with 530 calories and 22 grams of protein in an 8 fl oz bottle; it is easier to portion but less calorie-dense than a full powder serving.

Provides 530 calories, 22 grams of protein, and 26 vitamins and minerals per 8 fl oz serving.
Ready-to-drink format suits quick snacks or mini meals when mixing a large powder serving is impractical.
The fixed bottle size improves portion control, but one bottle supplies substantially fewer calories than an aggressive mass-gainer serving.

9.6

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Best aggressive powder bulking formula

Dymatize Super Mass Gainer

For hard gainers and high-activity users who want a very large calorie dose with whey, casein, BCAAs, and creatine; the tradeoff is an eight-serving tub and a very large preparation.

Lists about 1,280 to 1,290 calories, 52 grams of protein, and 245 to 248 grams of carbohydrates per serving prepared with 24 oz of water.
Includes 10.7 grams of BCAAs, 14 vitamins and minerals, and 1 gram of creatine.
The eight-serving 6 lb package is efficient for aggressive bulking but may be excessive for moderate calorie goals.

9.4

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Best classic high-calorie mass gainer

Optimum Nutrition Serious Mass

For buyers who want a familiar high-calorie powder with flexible shake additions and a broad nutrition profile; its full serving is too large for many moderate-surplus plans.

Provides more than 1,200 calories, 50 grams of protein, and more than 250 grams of carbohydrates per two-scoop serving.
Includes more than 20 vitamins and minerals along with whey protein, creatine, glutamine, and BCAAs.
The powder can be blended with milk, fruit, peanut butter, or nuts, but those additions further increase calories and preparation demands.

9.3

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Best vegan high-calorie shake

NAKED Vegan Mass

For vegan, dairy-free, soy-free, or gluten-free buyers seeking a complete high-calorie powder; the 1,230-calorie serving remains a substantial commitment.

Provides 1,230 calories, 50 grams of protein, 245 grams of carbohydrates, and 10.3 grams of BCAAs per serving.
Uses pea and rice proteins in a 2:1 ratio and contains five listed ingredients, including organic tapioca maltodextrin and vanilla.
The 8 lb package lists 11 servings, while the large serving size may not suit gradual weight gain.

9.2

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Best minimalist ingredient formula

NAKED Mass

For ingredient-conscious buyers who want a very high-calorie whey-and-casein powder without artificial sweeteners, flavors, or colors; it is not dairy-free.

Lists 1,250 calories, 50 grams of protein, 252 grams of carbohydrates, and 11.5 grams of BCAAs per serving.
Uses only whey, casein, and organic tapioca maltodextrin according to the product listing.
The unflavored 8 lb powder is versatile for recipes, but the whey and casein base excludes vegan and dairy-free users.

9.1

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Best moderate-calorie protein balance

Optimum Nutrition Gold Standard Pro Gainer

For active buyers who want more protein without a 1,200-calorie serving; the lower calorie and carbohydrate dose requires less aggressive bulking.

Provides 650 calories, 60 grams of protein, 85 grams of carbohydrates, and 32 vitamins and minerals per serving.
Lists 7 grams of sugar or less and is positioned for post-workout or between-meal use.
The product listing says it mixes with a blender, shaker, or spoon, but it contributes fewer calories than the full mass-gainer formulas.

9.0

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Best milk-assisted bulking option

MuscleTech 100% Mass Gainer

For buyers comfortable preparing a six-scoop shake with skim milk and wanting creatine plus a very high calorie total; the headline 1,500 calories depends on that milk addition.

Lists 60 grams of protein and 1,500 calories when mixed with two cups of skim milk.
The prepared serving provides 304 grams of carbohydrates, 6.3 grams of L-leucine, and more than 13 grams of BCAAs.
The six-scoop serving and milk requirement create more preparation and calorie-tracking work than a ready-to-drink option.

8.9

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Best lower-sugar lean gainer

Rival Nutrition Clean Gainer

For moderate surplus plans that favor 550 calories, natural flavors, and only 2 grams of added sugar; the dairy-based formula supplies less protein and total energy than mass gainers.

Provides 550 calories, 30 grams of protein, and 97 grams of carbohydrates per serving.
Uses whey, milk, and micellar casein proteins and lists 2 grams of added sugar per serving.
Can be mixed with cold water, milk, or juice in a shaker cup or blender, but it is not dairy-free or vegan.

8.8

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Best balanced nutritional RTD

Ensure Plus Nutrition Shake

For adults seeking a smaller ready-to-drink calorie boost with protein, fiber, and broad micronutrient coverage; it is not designed to match bodybuilding powder calories.

Provides 350 calories, 16 grams of protein, fiber, and 27 vitamins and minerals in an 8 fl oz serving.
The ready-to-drink vanilla format works as a snack, with a meal, or as a convenient weight-maintenance option.
Its lower calorie dose makes it easier to fit into a moderate plan but less suitable for aggressive bulking by itself.

8.7

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Best simple everyday RTD

BOOST Plus Nutritional Drink

For buyers who want a portable, gluten-free nutritional shake with no artificial colors, flavors, or sweeteners; its 360 calories and 14 grams of protein limit its role in aggressive bulking.

Provides 360 calories, 14 grams of protein, and 26 vitamins and minerals per 8 fl oz serving.
The recyclable carton format is ready to drink and requires no powder, shaker, or blender.
It is best viewed as a convenient calorie and nutrient supplement rather than a replacement for a high-calorie mass-gainer serving.

8.6

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Comparison Summary

The selected products divide into three practical groups. Ready-to-drink choices include BOOST Very High Calorie at 530 calories and 22 grams of protein per 8 fl oz, BOOST Plus at 360 calories and 14 grams of protein, and Ensure Plus at 350 calories and 16 grams of protein. They are the easiest options for reduced appetite, travel, or general weight-maintenance support, but their calorie and protein totals are much lower than a full powder serving.

For aggressive bulking, Dymatize Super Mass lists about 1,280 to 1,290 calories, 52 grams of protein, and 245 to 248 grams of carbohydrates when prepared with 24 oz of water. Optimum Nutrition Serious Mass lists more than 1,200 calories, 50 grams of protein, and more than 250 grams of carbohydrates per serving. MuscleTech lists 1,500 calories and 60 grams of protein when mixed with two cups of skim milk, so that headline number should not be compared directly with powder-only figures.

The moderate-calorie group includes Optimum Nutrition Gold Standard Pro Gainer at 650 calories and 60 grams of protein, and Rival Nutrition Clean Gainer at 550 calories and 30 grams of protein. NAKED Mass and NAKED Vegan Mass provide much larger calorie doses with short ingredient lists; the vegan formula uses pea and rice proteins and is dairy-free, while NAKED Mass uses whey and casein. The right choice is therefore less about maximum calories and more about matching the serving size, formula, and preparation burden to your routine.

Buying Guide

Sizing and Capacity

In this category, sizing means more than tub weight. Compare calories, protein, carbohydrates, serving size, and servings per package before comparing container size. A ready-to-drink 8 fl oz bottle or carton gives a fixed portion: BOOST Very High Calorie supplies 530 calories, while BOOST Plus and Ensure Plus supply 360 and 350 calories respectively.

Powder servings vary dramatically. Dymatize Super Mass and Optimum Nutrition Serious Mass provide roughly 1,200 to 1,290 calories per labeled serving, while NAKED Vegan Mass and NAKED Mass are also above 1,200 calories. Those formulas are designed for buyers who can use a large calorie dose. Gold Standard Pro Gainer and Rival Clean Gainer are easier to fit into a moderate surplus at 650 and 550 calories.

Package size affects commitment. Dymatize and Serious Mass list eight servings in their 6 lb packages, NAKED Vegan Mass lists 11 servings in its 8 lb package, and the ready-to-drink options are sold in 24-count packs. A smaller serving or half serving may be practical for some plans, but the supplied product information does not establish the resulting nutrition, so use the label directions rather than assuming the calories divide perfectly.

Feature Tradeoffs

The central tradeoff is calorie density versus control. Aggressive powders deliver enough carbohydrates to create a substantial surplus quickly, but their servings can require 24 oz of water, six scoops, or additional milk. That can be useful for hard gainers and high-activity users but uncomfortable for someone who only needs a modest increase.

Protein source also changes the decision. NAKED Vegan Mass uses pea and rice proteins and is dairy-free, soy-free, and gluten-free. NAKED Mass combines whey and casein, while Rival Clean Gainer uses whey, milk, and micellar casein. Buyers avoiding dairy should not treat the two NAKED formulas as interchangeable.

Extras can support a specific goal without making a product universally better. Dymatize includes BCAAs, vitamins, minerals, and 1 gram of creatine. Serious Mass includes creatine, glutamine, BCAAs, vitamins, and minerals. MuscleTech includes creatine and BCAAs, while ready-to-drink products emphasize vitamins and minerals rather than bodybuilding-oriented add-ons. Choose the extras that complement your routine instead of paying for features you will not use.

Best For, Avoid If

Profile	Recommended Product	Why It Fits	Avoid If
Low appetite, travel, or no-blender users	BOOST Very High Calorie Nutritional Drink	It supplies 530 calories and 22 grams of protein in a ready-to-drink 8 fl oz portion with 26 vitamins and minerals.	You need more than 530 calories and 22 grams of protein from one serving or want to customize the shake with extra ingredients.
Aggressive athletic bulking	Dymatize Super Mass Gainer	The labeled serving provides about 1,280 to 1,290 calories, 52 grams of protein, and up to 248 grams of carbohydrates, plus BCAAs and creatine.	You prefer a moderate surplus, dislike a 24 oz preparation, or want more than eight servings from a 6 lb package.
Vegan or dairy-free high-calorie plans	NAKED Vegan Mass	It combines pea and rice proteins with 1,230 calories, 50 grams of protein, and 245 grams of carbohydrates while listing dairy-free, soy-free, and gluten-free attributes.	You want a small serving, a low-carbohydrate shake, or a dairy-based whey-and-casein formula.
Moderate surplus with high protein	Optimum Nutrition Gold Standard Pro Gainer	It delivers 650 calories and 60 grams of protein, making it less calorie-heavy than full mass gainers while still supporting an active routine.	You need more than 1,000 calories from one prepared serving or specifically want a vegan or dairy-free formula.
Lower-sugar, moderate-calorie shake buyers	Rival Nutrition Clean Gainer	It lists 550 calories, 30 grams of protein, 97 grams of carbohydrates, natural flavors, stevia, and only 2 grams of added sugar.	You avoid dairy proteins or need a very large calorie dose for aggressive bulking.
Balanced ready-to-drink nutritional support	Ensure Plus Nutrition Shake	It provides 350 calories, 16 grams of protein, fiber, and 27 vitamins and minerals in an 8 fl oz vanilla shake.	Your primary goal is bodybuilding-style bulking with more than 1,000 calories and 50 grams of protein per serving.

Key Specs to Compare

Check these specifications in order:

Calories without additions: Dymatize lists about 1,280 to 1,290 calories with 24 oz of water, while MuscleTech lists 1,500 calories when prepared with two cups of skim milk. Those conditions are not equivalent.
Protein: Gold Standard Pro Gainer lists the highest protein-to-calorie balance among the moderate options at 60 grams; Dymatize lists 52 grams, Serious Mass 50 grams, and Rival Clean Gainer 30 grams.
Carbohydrates: Dymatize, Serious Mass, NAKED Mass, and NAKED Vegan Mass are heavily carbohydrate-focused. Rival and Gold Standard Pro Gainer are more moderate.
Dietary fit: NAKED Vegan Mass is dairy-free, soy-free, and gluten-free. NAKED Mass is soy-free and gluten-free but contains whey and casein. BOOST Plus is listed as gluten-free.
Format: BOOST Very High Calorie, BOOST Plus, and Ensure Plus are ready to drink. Every other selected product is a powder requiring preparation.
Certification and formulation: NAKED products list NSF certification, while several formulas distinguish themselves through limited ingredients, no artificial ingredients, or lower added sugar.

Setup and Handling Considerations

Ready-to-drink products are the simplest choice: chill or serve as directed, then use the fixed bottle or carton portion. They work well when a blender is unavailable or when a very large shake is unrealistic.

Powders require closer attention to directions. Dymatize Super Mass is described with a 24 oz water preparation, and MuscleTech’s 1,500-calorie figure is based on two cups of skim milk. Serious Mass, NAKED Mass, and NAKED Vegan Mass can be incorporated into shakes or recipes, but added milk, fruit, nut butter, or other ingredients change the calorie total.

Gold Standard Pro Gainer is specifically listed as mixable with a blender, shaker, or spoon. Rival Clean Gainer is described as mixing with cold water, milk, or juice in a shaker cup or blender for about 30 seconds. For any powder, compare the required liquid volume with the capacity of your shaker and decide whether you can realistically prepare the labeled serving.

Maintenance and Longevity

For consumable products, longevity mainly means how long the package lasts and how consistently the serving fits your routine. A 24-pack of ready-to-drink shakes offers repeatable portions but takes more storage space. An eight-serving mass-gainer tub may be used quickly by someone following the full serving, while an 8 lb vegan powder listing 11 servings may still require frequent replenishment for a high-calorie plan.

Large tubs are not automatically better value or better suited to your goals. They make sense when you already know that the flavor, protein source, and calorie dose fit your diet. Buyers still deciding between a moderate and aggressive surplus should generally avoid committing to the largest package before confirming that the serving size is practical.

Use the product label for serving, storage, and expiration instructions. The most sustainable choice is the one whose preparation and portion you can repeat without routinely overshooting your calorie target or abandoning the shake because it is too large.

Reliability Signals

Useful reliability signals are transparent nutrition conditions, clear ingredient information, and a formula that matches its stated purpose. Dymatize and MuscleTech make the preparation conditions behind their large calorie claims important to the comparison. Ready-to-drink products provide simpler, fixed nutrition because the serving is already portioned.

NAKED Mass and NAKED Vegan Mass stand out for short ingredient lists and listed NSF certification. The vegan formula also identifies its pea-to-rice protein ratio, which is useful for buyers who want a dairy-free protein blend. Rival Clean Gainer identifies its protein sources, natural flavoring, stevia sweetener, and 2 grams of added sugar.

A certification or short ingredient list does not automatically make a product better for every buyer. It is most useful when purity, dietary restrictions, or ingredient simplicity is a deciding factor. Match that signal with the actual calorie dose and serving burden.

How to Compare Reviews

When comparing exact-model feedback, confirm the flavor, package size, and formula first. A review of a ready-to-drink vanilla shake should not be treated as evidence about a powder version, and a review of one flavor should not automatically describe another.

For Dymatize Super Mass, Serious Mass, NAKED Mass, and NAKED Vegan Mass, focus on whether reviewers discuss the full serving size, liquid volume, sweetness, and tolerance of a very high-calorie shake. For MuscleTech, check whether comments refer to the two-cup skim-milk preparation behind the 1,500-calorie claim. For Gold Standard Pro Gainer and Rival Clean Gainer, look for whether the lower-calorie serving fits the reviewer’s goal rather than assuming that less is worse.

For BOOST Very High Calorie, BOOST Plus, and Ensure Plus, prioritize comments about portability, portion size, flavor, and whether the ready-to-drink format suits the buyer’s appetite. Always separate exact product experience from general opinions about the brand or category.

Common Mistakes

The most common mistake is comparing headline calories without checking preparation. MuscleTech’s 1,500-calorie figure includes two cups of skim milk, while Dymatize’s large figure is described with 24 oz of water. Added milk, fruit, oats, or nut butter can substantially change the final shake.

Another mistake is choosing a full mass-gainer serving for a modest calorie surplus. Dymatize, Serious Mass, NAKED Mass, and NAKED Vegan Mass may be appropriate for aggressive bulking but can be excessive for someone who only needs a controlled increase. Gold Standard Pro Gainer, Rival Clean Gainer, or a ready-to-drink option may be easier to manage.

Do not overlook dietary compatibility. Whey, casein, and milk-based formulas are not suitable for vegan or dairy-free buyers, and a product being gluten-free does not make it dairy-free. Finally, do not treat vitamins, creatine, BCAAs, or certification as substitutes for checking calories, protein, serving size, and whether you will actually use the product consistently.

Frequently Asked Questions

Which selected shakes provide the most calories?

Dymatize Super Mass lists about 1,280 to 1,290 calories per serving prepared with 24 oz of water, and Optimum Nutrition Serious Mass lists more than 1,200 calories per serving. MuscleTech lists 1,500 calories when mixed with two cups of skim milk, so its figure includes a preparation condition that must be counted.

Which weight gainer shakes are ready to drink?

BOOST Very High Calorie, BOOST Plus, and Ensure Plus are ready-to-drink products. BOOST Very High Calorie has the largest calorie dose of the three at 530 calories per 8 fl oz, while BOOST Plus and Ensure Plus provide 360 and 350 calories respectively.

What is the best option for a moderate calorie surplus?

Optimum Nutrition Gold Standard Pro Gainer and Rival Nutrition Clean Gainer are the clearest moderate-calorie choices at 650 and 550 calories per serving. Their calorie totals are easier to fit into a controlled plan than the 1,200-plus-calorie servings of aggressive mass gainers.

Which selected product is vegan and dairy-free?

NAKED Vegan Mass uses pea and rice proteins and is listed as dairy-free, soy-free, and gluten-free. NAKED Mass is not vegan or dairy-free because it uses whey and casein.

Can I use half of a full powder serving?

A smaller portion can be a practical way to moderate a very large shake, but the supplied product information does not provide half-serving nutrition for every formula. Follow the product label and calculate the portion from the stated serving size rather than assuming the final calories will be exact.

Final Recommendation

BOOST Very High Calorie Nutritional Drink is the best overall choice for buyers who want dependable calorie support without a blender, large tub, or very high-volume shake. Its 530 calories, 22 grams of protein, 26 vitamins and minerals, and fixed 8 fl oz portion make it especially practical for low appetite, travel, or weight-maintenance routines, although it is less suitable for aggressive bulking than a powder. Choose Dymatize Super Mass Gainer instead when your priority is a very large calorie and carbohydrate dose for athletic bulking and you can manage a 24 oz preparation. Choose NAKED Vegan Mass when dairy-free and vegan compatibility matters more than keeping the serving small.