Best 15 Servings Mass Gainer: Fuel Your Transformation Today

Looking for the best 15-serving mass gainer to fuel your fitness journey? We’ve curated a list of top picks packed with high-quality calories, premium proteins, and essential nutrients to help you transform your body and reach your goals.

Mass gainers are a powerful tool for anyone looking to build muscle and gain weight. With so many options available, finding the right one can be tricky. That’s why we’ve put together a guide to the best 15-serving mass gainers to help you make the smartest choice.

These products are packed with high-quality calories, premium proteins, and essential nutrients to fuel your fitness journey. Whether you’re a beginner or a seasoned athlete, there’s something here for everyone.

Get ready to transform your body and reach your goals with our expert picks. Let’s dive in and find the perfect mass gainer for you!

List of Top 10 15 Servings Mass Gainer

Title	Best For	Price
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vitamin C and Zinc for Immune Support, Vanilla, 12 Pound (Packaging May Vary)	This weight gainer is perfect for anyone who wants to build muscle and gain weight. It’s great for active people or those with high calorie needs.	View on Amazon (paid link)
RIVAL NUTRITION Clean Gainer Chocolate Fudge High-Protein Lean Gainer Powder I 5 Lb, 15 Servings I 580 Calories, 30g Protein, 101g Multi-Source Carbs Per Serving I Natural Flavors, Clean Ingredients	This product is perfect for anyone who wants to gain lean muscle and fuel their workouts. It’s great for active people looking for clean, natural ingredients and quality calories.	View on Amazon (paid link)
BSN TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 4:1 Carbs to Protein Ratio, Chocolate Milkshake, 10.38 Pound, 15 Servings	This mass gainer is perfect for anyone who wants to build muscle and gain weight. It’s great for those with high-calorie needs or intense training routines.	View on Amazon (paid link)
BSN TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 4:1 Carbs to Protein Ratio, Vanilla Ice Cream, 10.25 Pound, 15 Servings	This weight gainer is perfect for anyone who wants to build muscle and recover after intense workouts. It’s great for those who need extra calories and a balanced mix of carbs and protein.	View on Amazon (paid link)
RIVAL NUTRITION Clean Gainer Cookies & Cream High-Protein Lean Gainer Powder I 5 Lb, 15 Servings I 560 Calories, 30g Protein, 99g Multi-Source Carbs Per Serving I Natural Flavors, No Artificial Colors	This lean gainer powder is perfect for active people who want to build muscle and fuel their workouts. It’s great for those seeking clean, natural ingredients without artificial colors or fillers.	View on Amazon (paid link)
Mutant Mass \| Weight Mass Gainer Protein Powder – high Calorie Protein Powder for Muscular Mass – Vanilla Ice Cream – 15 Pound	Mutant Mass is perfect for anyone looking to gain muscle mass and boost their calorie intake. It’s ideal for active individuals who need high-quality protein and clean carbs to support growth and recovery.	View on Amazon (paid link)
BSN TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 4:1 Carbs to Protein Ratio, Strawberry Milkshake, 10.25 Pound, 15 Servings	BSN TRUE-MASS Weight Gainer is perfect for anyone looking to gain muscle and recover faster after intense workouts. It’s ideal for those who need extra calories and a balanced mix of carbs and protein to fuel their training.	View on Amazon (paid link)
MuscleMeds Carnivor Mass Chocolate Big Steer 1250, 15 Lb (Packaging May Vary)	MuscleMeds Carnivor Mass Chocolate Big Steer 1250 is perfect for anyone looking to gain muscle mass and boost their calorie intake. It’s ideal for active individuals who need high protein and carbs without sugar, lactose, or fat.	View on Amazon (paid link)
PERFECT SPORTS Clean Mass Gainer \| 50g Whey Protein \| Full Serving of Fruits & Veggies \| 99% Removed Lactose & Gluten Free \| 5 Pounds (Chocolate Ice Cream)	This mass gainer is perfect for athletes who want to build muscle and fuel intense workouts. It’s great for those who need clean nutrition with no added sugar and real food ingredients.	View on Amazon (paid link)
RIVAL NUTRITION Clean Gainer Protein Powder – 5LB Cookies & Cream – High Protein Lean Mass & Weight Gainer \| 560 Calories, 30g Protein, 99g Multi-Source Carbs – 15 Servings	RIVAL NUTRITION Clean Gainer Protein Powder is perfect for anyone looking to build lean muscle and gain strength. Whether you’re an athlete, fitness enthusiast, or just want to add size, this high-protein, calorie-packed formula supports your goals with quality ingredients and great flavors.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 mass gainers with 15 servings, carefully selected based on expert reviews and customer feedback. Each product is evaluated for quality, performance, and value, ensuring you find the perfect fit for your fitness goals. Whether you prioritize flavor, clean ingredients, or calorie count, this guide has you covered. Dive in to find the best mass gainer to fuel your gains and transform your results!

1. Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vitamin C and Zinc for Immune Support, Vanilla, 12 Pound (Packaging May Vary)

Optimum Nutrition Serious Mass Weight Gainer is a great choice for anyone looking to gain weight. Each serving has 1,250 calories and 50 grams of protein. It also includes over 250 grams of carbohydrates for energy.

This product is packed with 25 vitamins and minerals. It also contains creatine and glutamine for added support.

With this weight gainer, you can easily boost your calorie intake. You can mix it with fruits or nut butter for extra flavor. Enjoy reaching your weight gain goals with this delicious vanilla powder!

Pros	Cons
1,250 Calories per serving for serious weight gain. 50g Protein boosts muscle growth and recovery. 25 Vitamins & Minerals support immune health. Easy blending with fruits, nuts, or peanut butter for customized shakes.	High calories may not suit all diet plans. Needs blender for best results, extra effort required. Risk of melting if exposed to heat or sunlight.

Perfect For:

This weight gainer is perfect for anyone who wants to build muscle and gain weight. It’s great for active people or those with high calorie needs.

Ready to Purchase?

View Price on Amazon (paid link)

2. RIVAL NUTRITION Clean Gainer Chocolate Fudge High-Protein Lean Gainer Powder I 5 Lb, 15 Servings I 580 Calories, 30g Protein, 101g Multi-Source Carbs Per Serving I Natural Flavors, Clean Ingredients

RIVAL NUTRITION Clean Gainer Chocolate Fudge High-Protein Lean Gainer Powder I 5 Lb, 15 Servings I 580 Calories, 30g Protein, 101g Multi-Source Carbs Per Serving I Natural Flavors, Clean Ingredients

Fuel your gains with RIVAL NUTRITION Clean Gainer in delicious Chocolate Fudge! This high-protein lean gainer is designed to support your fitness journey with quality calories and premium proteins.

Get 580 calories per serving. Enjoy 30g of protein from a blend of sources. It also packs 101g of multi-source carbs.

Made with clean ingredients and natural flavors, this gainer is gluten-free and free from added sugars, artificial colors, and fillers. It’s also Informed Choice Certified, ensuring it’s safe for sport.

Pros	Cons
Clean, natural formula with no added sugars or artificial ingredients. 580 calories per serving for lean gains and muscle recovery. 30g premium protein from whey, milk, and casein sources. 101g multi-source carbs with only 2g added sugars. Safe for sport, third-party tested for banned substances.	High in calories, may not suit low-calorie diets. Large serving size, hard to measure accurately. Expensive compared to other gainers.

Perfect For:

This product is perfect for anyone who wants to gain lean muscle and fuel their workouts. It’s great for active people looking for clean, natural ingredients and quality calories.

Ready to Purchase?

View Price on Amazon (paid link)

3. BSN TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 4:1 Carbs to Protein Ratio, Chocolate Milkshake, 10.38 Pound, 15 Servings

BSN TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 4:1 Carbs to Protein Ratio, Chocolate Milkshake, 10.38 Pound, 15 Servings

Unleash your inner athlete with BSN TRUE-MASS Weight Gainer! This chocolate milkshake powerhouse is your secret weapon for extreme training, delivering a massive 1200 calories per serving to fuel your gains.

Build serious muscle. Get 50g of protein per scoop. Recover faster and grow bigger.

Pros	Cons
1200 calories per serving for extreme training needs. 4:1 carb-protein ratio fuels muscle growth effectively. 50g protein plus amino acids for recovery. 10g fiber supports digestive health.	High calorie count may not suit all diet plans. Expensive compared to other mass gainers. Large serving size can be hard to consume.

Perfect For:

This mass gainer is perfect for anyone who wants to build muscle and gain weight. It’s great for those with high-calorie needs or intense training routines.

Ready to Purchase?

View Price on Amazon (paid link)

4. BSN TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 4:1 Carbs to Protein Ratio, Vanilla Ice Cream, 10.25 Pound, 15 Servings

BSN TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 4:1 Carbs to Protein Ratio, Vanilla Ice Cream, 10.25 Pound, 15 Servings

BSN TRUE-MASS is a powerful weight gainer designed for intense training. It helps you build muscle and recover faster.

Each serving packs 1200 calories, 50g of protein, and a 4:1 carb-to-protein ratio. It also includes 7g of fiber for better digestion.

Perfect for post-workout recovery, this vanilla ice cream flavored powder fuels your muscle growth and energy needs.

Pros	Cons
Pack on mass with 1200 calories per serving. 4:1 carb-protein mix fuels extreme training and recovery. 50g protein plus amino acids build strong muscles. 7g fiber keeps digestion smooth and healthy.	High calorie count may not suit everyone. Large serving size can be difficult to consume.

Perfect For:

This weight gainer is perfect for anyone who wants to build muscle and recover after intense workouts. It’s great for those who need extra calories and a balanced mix of carbs and protein.

Ready to Purchase?

View Price on Amazon (paid link)

5. RIVAL NUTRITION Clean Gainer Cookies & Cream High-Protein Lean Gainer Powder I 5 Lb, 15 Servings I 560 Calories, 30g Protein, 99g Multi-Source Carbs Per Serving I Natural Flavors, No Artificial Colors

RIVAL NUTRITION Clean Gainer Cookies & Cream High-Protein Lean Gainer Powder I 5 Lb, 15 Servings I 560 Calories, 30g Protein, 99g Multi-Source Carbs Per Serving I Natural Flavors, No Artificial Colors

RIVAL NUTRITION Clean Gainer in Cookies & Cream flavor is a high-protein lean gainer powder. Each serving has 560 calories and 30 grams of protein to support your fitness goals.

This clean formulation uses natural flavors and is sweetened with stevia leaf extract. It is gluten-free and contains no artificial colors or fillers, making it a healthy choice for gaining muscle and energy.

Mixing is simple. Just add 2 scoops to your choice of liquid and shake. Enjoy the benefits of quality nutrients in every serving.

Pros	Cons
Fuel your gains with quality calories. Build muscle with premium proteins. Power up with multi-source carbs. Enjoy natural flavors, no artificial stuff. Mixes easily for quick preparation.	Not for weight loss. High in carbs and calories.

Perfect For:

This lean gainer powder is perfect for active people who want to build muscle and fuel their workouts. It’s great for those seeking clean, natural ingredients without artificial colors or fillers.

Ready to Purchase?

View Price on Amazon (paid link)

6. Mutant Mass | Weight Mass Gainer Protein Powder – high Calorie Protein Powder for Muscular Mass – Vanilla Ice Cream – 15 Pound

Unleash your inner Mutant with Mutant Mass, the ultimate weight gainer designed for serious muscle growth. This Vanilla Ice Cream flavored powder is your secret weapon for packing on lean mass and achieving your physique goals.

It’s packed with 1100 calories per serving. You get 56g of pure protein to fuel your gains. Plus, it’s loaded with clean carbs and healthy fats.

Fuel your workouts with 192g of clean carbs and 12g of fat, all from natural whole foods like oats and avocado. This enhanced gainer is your ticket to explosive growth and a gourmet taste experience.

Pros	Cons
Boosts muscle growth with 56g protein. Fuel your gains with 1100 calories. Clean carbs from whole foods. Packed with EAAs and BCAAs. Delicious Vanilla Ice Cream flavor.	High calorie count may not suit everyone. Large serving size can be a lot to consume. Vanilla flavor might not appeal to all tastes.

Perfect For:

Mutant Mass is perfect for anyone looking to gain muscle mass and boost their calorie intake. It’s ideal for active individuals who need high-quality protein and clean carbs to support growth and recovery.

Ready to Purchase?

View Price on Amazon (paid link)

7. BSN TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 4:1 Carbs to Protein Ratio, Strawberry Milkshake, 10.25 Pound, 15 Servings

BSN TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 4:1 Carbs to Protein Ratio, Strawberry Milkshake, 10.25 Pound, 15 Servings

BSN TRUE-MASS is your ultimate mass gainer. It’s designed for extreme training. Get ready to build serious muscle.

This powder packs a massive 1200 calories per serving. It’s the highest calorie gainer from BSN.

You get a perfect 4:1 carb to protein ratio. Plus, 50g of protein and 8g of fiber to fuel your gains.

Pros	Cons
Fuel your gains with 1200 calories! Power up with 50g protein per scoop. Perfect ratio: 4:1 carbs to protein. Digest easy with 8g fiber.	High calories may not suit all diet plans. Large serving size can be hard to finish. Sweet flavor might get old quickly.

Perfect For:

BSN TRUE-MASS Weight Gainer is perfect for anyone looking to gain muscle and recover faster after intense workouts. It’s ideal for those who need extra calories and a balanced mix of carbs and protein to fuel their training.

Ready to Purchase?

View Price on Amazon (paid link)

8. MuscleMeds Carnivor Mass Chocolate Big Steer 1250, 15 Lb (Packaging May Vary)

Unleash your gains with MuscleMeds Carnivor Mass! Get 1250 calories in every serving. Fuel your muscles with 50g of beef protein.
This formula is sugar-free and lactose-free. It’s also fat-free for clean fueling.
Achieve your fitness goals with advanced insulin and carb control. This is your ultimate mass gainer.

Pros	Cons
1250 calories per serving for massive gains. 50g beef protein isolate for strong muscles. Sugar-free carbs for clean energy. Lactose-free, fat-free for easy digestion.	High calorie count may not suit all diets. Large serving size could be hard to consume. Beef protein may not appeal to everyone.

Perfect For:

MuscleMeds Carnivor Mass Chocolate Big Steer 1250 is perfect for anyone looking to gain muscle mass and boost their calorie intake. It’s ideal for active individuals who need high protein and carbs without sugar, lactose, or fat.

Ready to Purchase?

View Price on Amazon (paid link)

9. PERFECT SPORTS Clean Mass Gainer | 50g Whey Protein | Full Serving of Fruits & Veggies | 99% Removed Lactose & Gluten Free | 5 Pounds (Chocolate Ice Cream)

PERFECT SPORTS Clean Mass Gainer is your ultimate all-in-one solution for building muscle and boosting performance. Each scoop delivers a powerful blend of 12.5g of whey protein and 42g of complex carbs. It’s also gluten-free and virtually lactose-free, perfect for sensitive stomachs.

Fuel your body with real food nutrition. This gainer is packed with 11 concentrated fruits and vegetables, offering a wide array of vitamins and minerals. Enjoy the benefits of coconut, mango, banana, and more, all contributing to your overall health.

Achieve your gains with a 3.5:1 carb to protein ratio, ideal for fueling intense workouts. Plus, with no added sugar, you can recover smarter.

Pros	Cons
Power-packed gainer for muscle growth. Real food nutrition with fruits and veggies. Perfect carb-to-protein ratio for athletes. No added sugar, great for recovery. Trusted by pros for 20+ years.	High price point may not suit all budgets. Large serving size could be inconvenient for some users. Flavor may not appeal to everyone’s taste preferences.

Perfect For:

This mass gainer is perfect for athletes who want to build muscle and fuel intense workouts. It’s great for those who need clean nutrition with no added sugar and real food ingredients.

Ready to Purchase?

View Price on Amazon (paid link)

10. RIVAL NUTRITION Clean Gainer Protein Powder – 5LB Cookies & Cream – High Protein Lean Mass & Weight Gainer | 560 Calories, 30g Protein, 99g Multi-Source Carbs – 15 Servings

RIVAL NUTRITION Clean Gainer Protein Powder – 5LB Cookies & Cream – High Protein Lean Mass & Weight Gainer | 560 Calories, 30g Protein, 99g Multi-Source Carbs – 15 Servings

RIVAL NUTRITION Clean Gainer Protein Powder helps you build lean muscle and gain strength. Each serving packs 560 calories, 30g protein, and 99g carbs. Enjoy the Cookies & Cream flavor in every scoop.

This powder uses full-spectrum proteins from whey, milk isolate, and micellar casein. These essential amino acids support muscle repair and growth. Multi-source carbs fuel your workouts and recovery.

It’s safe for sports, tested for 250+ banned substances. Choose from great flavors like chocolate fudge, vanilla, and s’mores. Clean Gainer is your go-to for quality gains.

Pros	Cons
560 calories for lean gains and strength. 30g protein from whey, milk, and casein for muscle repair. 99g carbs for energy and recovery. Safe for sports, tested for 250+ banned substances.	Limited serving size for the calorie count. May be too rich for some sensitive stomachs. Flavor variety might not suit everyone’s taste.

Perfect For:

RIVAL NUTRITION Clean Gainer Protein Powder is perfect for anyone looking to build lean muscle and gain strength. Whether you’re an athlete, fitness enthusiast, or just want to add size, this high-protein, calorie-packed formula supports your goals with quality ingredients and great flavors.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Mass gainers are a great way to build muscle and gain weight. With so many options, finding the right one can feel overwhelming.

Choosing the best 15-serving mass gainer is about matching your goals and needs. Here’s what to consider:

Calories per Serving: Look for a gainer with enough calories to support your weight gain goals. Options range from 560 to 1,250 calories per serving.
Protein Content: High-quality protein is key for muscle growth. Aim for 30g to 56g per serving from sources like whey, beef, or plant proteins.
Carbohydrates: Carbs provide energy for workouts. Choose gainers with multi-source carbs like oats or whole foods for better digestion.
Clean Ingredients: Opt for gainers with natural flavors, no artificial colors, and no added sugars for a healthier choice.
Flavor and Taste: Enjoying your gainer makes it easier to stick to your plan. Popular flavors include chocolate, vanilla, and cookies & cream.
Additional Nutrients: Some gainers include vitamins, minerals, creatine, or fiber for extra support. These can boost your overall health and recovery.
Mixability: A gainer that mixes easily saves time and hassle. Look for powders that blend smoothly with water or milk.
Certifications: Choose products that are gluten-free, lactose-free, or Informed Choice Certified if you have dietary restrictions or need safe-for-sport options.

With these factors in mind, you’ll find the perfect mass gainer to fuel your fitness journey and help you reach your goals!