18 Top Meal Replacements for Weight Gain

Discover the best meal replacement for weight gain with our quick, expert-approved picks. Boost your growth journey effortlessly and confidently.
BrandMy RatingPrice
Slimfast
Affordable Winner
9.2/10
Optimum Nutrition
Best for Rapid Weight Gain
9.0/10
Soylent
Best for Muscle Building
8.8/10
Naturade
Best for High-Calorie Needs
8.2/10
Boost
9.2/10

Best Meal Replacement for Weight Gain

Looking to pack on some mass without sacrificing time or flavor? When it comes to weight gain, choosing the right meal replacement is like finding a secret weapon in your fitness arsenal—quick, effective, and tasty enough to keep you coming back for more. Let’s explore the top options that can help you fuel your gains with ease and confidence.

Affordable Winner: SlimFast

SlimFast Meal Replacement Powder, Original French Vanilla, Weight Loss Shake Mix, 10g of Protein, 22 Servings (Packaging May Vary)
Highlights
Great Taste
Keeps Full 3-4 Hours
Rich in Vitamins

Naturade's SlimFast Original Shake Mix, tagged as the "Affordable Winner," packs a punch with 1600 calories per serving—perfect for those looking to gain weight without breaking the bank.

The sweet, creamy French Vanilla flavor is a real treat, making each sip enjoyable.

With 10 grams of protein and 4 grams of fiber, it helps keep you full for up to four hours, making it super convenient for busy days.

Plus, the mix is loaded with 24 vitamins and minerals, supporting overall health.

While it’s quite sweet and has a chalky chocolate variation, its value and taste make it a top contender.

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Best for Rapid Weight Gain: Optimum Nutrition Serious Mass

Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Vanilla, 6 Pound (Packaging May Vary)
Highlights
High calorie content
Good taste and mixability
Effective for weight gain

This weight gainer delivers over 1,200 calories per serving, making it perfect for rapid weight gain.

With 50 grams of blended protein and over 250 grams of carbs in just two scoops, it packs a serious punch.

Plus, the inclusion of 22 vitamins and minerals like Vitamin D and Zinc helps support your immune system among intense training days.

The best part?

Its versatility — toss in fruits, nuts, or peanut butter to customize your calorie boost.

Just keep in mind it’s discontinued and best served with a blender for smooth mixing.

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Best for Muscle Building: Soylent Vanilla

Soylent Vanilla Meal Replacement Shake, Ready-to-Drink Plant Based Protein Drink, Contains 20g Complete Vegan Protein and 1g Sugar, 14oz, 12 Pack
Highlights
Rich vanilla flavor
Plant-based protein
On-the-go convenience

Soylent stands out as the best for muscle building thanks to its 20g of complete vegan protein packed into every shake.

The rich vanilla flavor makes it a delightful treat, reminiscent of a classic milkshake, but with the benefit of balanced nutrition.

It’s ready to drink and ultra-convenient, perfect for those busy days or post-workout recovery.

Plus, with 28 vitamins and minerals, it boosts immunity and hydration while supporting muscle growth.

While the flavor variety isn't vast and some users might find the taste changing, its plant-based, low-sugar formula makes it a solid choice for healthy, on-the-go gains.

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Best for High-Calorie Needs: Naturade Weight Gain Drink

Naturade - All Natural Weight Gain Drink Mix - Gluten Free, Delicious Taste, 1600 Calories per Servings - Mass Gainer w/Carbohydrates & Protein - Chocolate, 20.3 Ounce (12 Servings).
Highlights
High calorie content
Natural ingredients
Delicious chocolate flavor

Naturade stands out as the "Best for High-Calorie Needs" thanks to its hefty 1600 calories per serving.

Its balanced blend of carbs and proteins—up to 46 grams of carbs and 20 grams of protein—makes it ideal for those looking to bulk up efficiently.

Plus, it’s made from natural ingredients with no artificial additives, aligning with a holistic approach to nutrition.

The delicious chocolate flavor makes every sip enjoyable, even if it’s a little pricey.

Whether you're an athlete or simply looking to gain weight healthily, this powder deserves a spot on your shortlist!

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Boost

Boost Very High Calorie Vanilla Nutritional Drink – 22g Protein, 530 Nutrient Rich Calories, 8 Fl Oz (Pack of 24)
Highlights
High calorie & protein
Nutrient-packed & tasty
Convenient meal support

The BOOST Very High Calorie Nutritional Drink doesn’t just pack a punch with 530 calories per 8 oz serving, but also delivers 22 grams of quality protein to help preserve muscle gains during your weight gain journey.

With 26 essential vitamins and minerals, it supports immune health, brain function, and bone strength — all in one convenient bottle.

The rich, tasty flavor makes it easy to enjoy over ice or straight from the carton.

Keep in mind, the texture can be thick for some, and it does contain added sugars, which might be a consideration.

Overall, a reliable, nutrient-dense choice for those looking to boost calories quickly.

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Dymatize Super Mass Gainer

Dymatize Super Mass Gainer Protein Powder, 1280 Calories & 52g Protein, Gain Strength & Size Quickly, 10.7g BCAAs, Mixes Easily, Tastes Delicious, Gourmet Vanilla, Gourmet Vanilla, 6 Pound (Pack of 1)
Highlights
High calorie content
Rich protein blend
Great taste and mix

With 1280 calories and 245g of carbs per serving, it’s a powerhouse for anyone serious about gaining mass.

The 52g of protein, which blends fast and slow-digesting sources, ensures your muscles stay fueled and recover effectively.

Plus, the inclusion of 10.7g of BCAAs and 14 vitamins and minerals support muscle synthesis and recovery.

The taste and mixability are excellent, making it easier to incorporate into your daily routine.

However, be mindful of the large serving size and the cost over time.

Overall, a solid option for those looking to bulk up quickly!

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Ensure Plus Strawberry Meal Replacement for Weight Gain

Ensure Plus Strawberry Nutrition Shake With Fiber | Meal Replacement Shake | Ready To Drink | 16g Protein and 27 Vitamins and Minerals | 8 fl oz - 24 Pack
Highlights
Clinically Proven to Help Gain
High in Nutrients
Great Strawberry Flavor

This ready-to-drink shake packs a punch with 350 calories per serving, making it an excellent choice for those aiming to gain or maintain weight.

The strawberry flavor is delightfully smooth, ensuring you’ll enjoy every sip as a meal replacement or snack.

Enriched with 27 vitamins and minerals plus 16 grams of high-quality protein, it supports muscle, heart, and bone health while boosting your immune system with zinc, vitamins A, C, E, and selenium.

Plus, it's doctor-recommended, adding extra peace of mind.

Just watch out for potential allergies or itching if your skin is sensitive.

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TransformHQ

TransformHQ Meal Replacement Shake Powder 7 Servings (Strawberry & Cream) - Gluten Free, Non-GMO
Highlights
Delicious Strawberry & Cream
High Protein Content
Easy to Mix

The delicious strawberry & cream flavor makes it enjoyable to sip on, turning a routine meal into a tasty treat.

With a hefty 40.4g of protein per serving, it’s ideal for those looking to gain weight efficiently.

Plus, the easy-to-mix powder means no clumps or fuss—just scoop, blend, and enjoy!

The fact that it's gluten-free and Non-GMO adds a layer of quality and peace of mind.

While the serving size is small and bottles are limited in quantity, its superior flavor and high protein content definitely make up for it.

Be sure to also check out the best gummies for weight gain for more options!

Carnation Breakfast Essentials

Carnation Breakfast Essentials Ready to Drink with Fiber, Rich Milk Chocolate, 8 FL OZ Carton (Pack of 24) (Packaging May Vary)
Highlights
Nutrient-rich formula
Convenient ready-to-drink
Good taste, not medicinal

Carnation Breakfast Essentials offers a nutrient-rich formula that makes it easy to pack healthy calories without sacrificing taste.

The high-quality protein keeps muscle building on track, which is key for healthy weight gain.

Plus, with 21 vitamins and minerals, it fills those nutritional gaps effortlessly—no artificial flavors or colors here!

The drink's great flavor makes it far from medicinal, encouraging consistency.

While it’s not the biggest filler and might be a tad pricey, its convenience and overall nutritional profile make it a solid choice for anyone looking to gain weight healthily and quickly.

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Ensure Max Protein Shake Meal Replacement for Weight Gain

Ensure Max Protein Shake | Café Mocha | Meal Supplement Shake | Ready to Drink | 30g Protein for Muscle Building | 1g Sugar, 4g Fiber | 11 fl oz - 12 Pack
Highlights
High protein content
Rich in vitamins
Supports digestion

Ensure Max Protein delivers an impressive 30g of high-quality protein per shake, perfect for muscle gain and hunger management.

It packs in 25 essential vitamins and minerals, supporting your immune system, bones, and energy levels.

Plus, with 4g of fiber and prebiotics, it promotes good digestion.

The tasty variety, including two caffeinated options, helps keep things interesting—even if some flavors aren’t endless, and the caffeine adds a boost.

As a doctor-recommended brand, it’s trusted and reliable for those looking to quickly and efficiently add calories and nutrients during weight gain endeavors.

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Metabolic Nutrition Musclean

Metabolic Nutrition - Musclean - Milkshake Weight Gainer, Whey High Protein Meal Replacement, Maintenance Nutrition, Low Carb, Keto Diet, Digestive Enzymes, Vanilla, 2.5 Pound (25 ser)
Highlights
Delicious flavors
High protein content
Easy to blend

MuscLean offers a powerful protein punch with up to 69 grams per serving, giving you the muscle-building support you need for healthy weight gain.

It’s packed with essential fatty acids and fortified with 24 vitamins and minerals, making it a well-rounded meal replacement.

Plus, the delicious flavor options and simple mixability make it a pleasure to incorporate into your daily routine.

The low sugar and gluten-free formula ensure it suits many dietary preferences.

Whether blending into a shake or baking into treats, MuscLean makes gaining weight both easy and tasty, all while fueling your performance goals.

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MET-Rx Big 100

MET-Rx Big 100 Colossal Protein Bars, Great as Healthy Meal Replacement, Snack, and Help Support Energy, Peanut Butter Pretzel, With Vitamin A, Vitamin C, and Zinc, 100 g, (Pack of 9)
Highlights
High protein content
Rich in vitamins & minerals
Good flavor variety

The MET-Rx Big 100 Protein Bars deliver a hefty 30 grams of protein per bar, making them a powerhouse for those looking to gain weight efficiently.

Packed with 18 essential vitamins and minerals, especially Vitamins A & C and Zinc, they support overall health and recovery.

The Peanut Butter Pretzel flavor offers a satisfying taste, perfect as a meal replacement or post-workout snack.

However, they can be a bit dry and tough, and with high calorie content, portion control is key.

Overall, a solid choice for a convenient, nutrient-packed weight gain option.

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Premier Protein Shake Meal Replacement for Weight Gain

Premier Protein Shake, Vanilla, 30g Protein, 1g Sugar, 24 Vitamins & Minerals, Nutrients to Support Immune Health 11.5 fl oz, 12 Pack
Highlights
Great taste and texture
High protein content
Convenient for on-the-go

Its classic vanilla flavor is absolutely dreamy, reminiscent of vanilla wafers, making each sip a delightful treat.

With 30g of protein, it’s perfect for tackling hunger during a busy day or after a workout.

Plus, it boasts 24 vitamins and minerals, including antioxidants like Vitamins C, D, and E, alongside Zinc and Magnesium to support immune health.

Its low fat, just 1g sugar, and keto-friendly profile mean guilt-free indulgence.

However, it can be pricier for daily use and has limited flavor options.

Overall, a satisfying, tasty option for gaining weight healthily!

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SlimFast

SlimFast Protein Shake, Chocolate- 20g Protein, Meal Replacement Shake Ready to Drink, High Protein with Low Carb and Low Sugar, 24 Vitamins and Minerals, 12 Count (Pack of 1) (Packaging May Vary)
Highlights
Great taste and flavor
High in protein (20g)
Curbs hunger effectively

The SlimFast High Protein Shake delivers a rich, silky chocolate flavor that makes it a pleasure to sip even when you're in a rush.

With 20 grams of protein per serving, it’s perfect for those looking to boost their calorie intake and support weight gain goals.

Plus, the inclusion of 24 vitamins and minerals plus 5 grams of fiber helps keep you nourished and satisfied.

While the serving size is on the smaller side and the flavor may lean artificial, the shake's ability to curb hunger and fit into a low-carb, gluten-free lifestyle makes it a top contender for quick, reliable weight gain support.

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Soylent Chocolate Shake

Soylent Chocolate Meal Replacement Shake, Contains 16g Complete Vegan Protein, Ready-to-Drink, 11oz, 12 Pack
Highlights
Rich and creamy flavor
Complete plant-based nutrition
On-the-go convenience

Soylent’s chocolate flavor is rich and creamy, making it surprisingly enjoyable for a meal replacement.

Packed with 16g of vegan protein and a blend of 28 vitamins and minerals, it supports muscle gain, immunity, and hydration effortlessly.

Plus, it’s completely plant-based, gluten-free, and nut-free, so it fits many dietary needs.

The on-the-go convenience means you can enjoy a nutritious mini-meal anytime, anywhere.

However, some users report it might increase hunger over time, and flavor variability can be a challenge.

Overall, it’s a solid option for quick weight gain support!

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Purely Inspired Meal Replacement for Weight Gain

Purely Inspired All-in-One Vegan Protein Powder for Men & Women, French Vanilla (16 Servings) - Plant-Based Organic Protein Powder for Shakes & Smoothies - Gluten-Free Nutritional Meal Replacement
Highlights
Rich in nutrients
Keeps full longer
Delicious flavor

Purely Inspired Organic All-in-One is a powerhouse for those aiming to gain weight healthfully.

With 20g of plant-based protein per scoop and a blend of 27 fruits and vegetables, it offers a rich nutrient profile that fuels muscle growth and keeps you energized.

The French Vanilla flavor is surprisingly delicious and versatile, blending smoothly into your favorite drinks.

Plus, the added probiotics and immune-supporting vitamins make it a convenient all-in-one option.

While it has a thick texture and a slight aftertaste, the overall benefits of nourishment and full feeling outweigh minor quirks.

A solid pick for weight gain goals!

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Boost Very High Calorie Nutri-Drink

Boost Very High Calorie Nutritional Drink Very Vanilla, Made with Natural Vanilla Flavor & No Artificial Flavors, Colors & Sweeteners, 8 FL OZ (Pack of 12)
Highlights
High Calorie Content
Balanced Nutrition
Great Flavor

BOOST Very High Calorie packs a punch with 530 calories per 8-ounce serving, making it a top choice for those looking to gain weight quickly.

It offers a perfectly balanced mix of protein, vitamins, and minerals, ensuring your body gets what it needs without extra fuss.

Plus, the delicious vanilla flavor makes it surprisingly enjoyable—no more boring shakes!

However, keep in mind it’s on the pricier side and might cause some digestive discomfort for sensitive stomachs.

Overall, it’s a solid, convenient option for anyone serious about health gains.

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Garden of Life Meal Replacement

Garden of Life Meal Replacement Shakes, Vegan Protein Powder, Raw Organic Protein Powder, Chocolate Protein Powder with Plant Based Pea Protein, Sprouts, Greens, Probiotics, Dairy Free 28 Servings
Highlights
High plant-based protein
Delicious flavor options
Supports digestion & absorption

Garden of Life’s Organic Vegan Protein Powder stands out as an all-in-one meal replacement that’s both delicious and nutrient-dense.

The silky smooth, chocolate flavor makes it a joy to drink—whether mixed with water or blended into smoothies.

Packed with 20g of plant-based protein and 6g of fiber, it keeps you feeling full longer, perfect for gaining weight.

Its support for digestion, thanks to live probiotics and enzymes, ensures your body absorbs all the goodness.

Keep in mind, it’s thick—so more liquid helps—and it comes at a premium price, but the quality is undeniable.

Be sure to also check out the best gluten free weight gainer for more options!

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