Looking for the best 15-serving mass gainers to boost your muscle growth and lean mass? Discover top-rated options packed with quality ingredients, balanced macros, and great taste to fuel your bulking journey effectively.
Looking for the Best 15-Serving Mass Gainers to fuel your muscle growth and lean mass goals? Picking the right high-calorie supplement can feel overwhelming, but the right choice makes all the difference.
These top picks blend quality ingredients, balanced macros, and great taste to simplify your gains. Each product is tested, trusted, and built for results. Your bulking journey starts here—effortless, effective, and powerful.
List of Top 10 15 Serving Mass Gainer
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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 looking to build muscle and gain healthy weight. It’s great for active people who need extra calories, protein, and nutrients to fuel their goals. |
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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 |
Athletes and active individuals seeking lean muscle growth will find this ideal. It offers 30g protein, 580 calories, and 101g carbs per serving with clean ingredients. No added sugars or artificial additives, plus third-party testing ensures safety. Perfect for post-workout recovery or daily energy needs. |
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Mutant Mass Weight Gainer Protein Powder – Mass Builder for Bulking and Lean Mass Gainer, The Weight Gainer Men Need to Bulk up – 15 Pound – Triple Chocolate |
This product is perfect for men wanting to bulk up with lean mass. It’s made for those seeking high protein, clean carbs, and natural whole-food ingredients in a gourmet-tasting shake. |
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Mutant Mass | Weight Mass Gainer Protein Powder – high Calorie Protein Powder for Muscular Mass – Vanilla Ice Cream – 15 Pound |
This product is perfect for active individuals aiming to build lean muscle mass and boost high-calorie needs. It’s ideal for those seeking clean carbs, 56g protein, and BCAAs/EAAs in every serving, made with natural whole-food ingredients and a gourmet taste. |
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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 is perfect for active people needing high-calorie nutrition to fuel muscle growth. It offers 50g protein, 4:1 carbs-to-protein, and 10g fiber per serving to boost energy and support recovery. |
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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 product is perfect for anyone who wants to gain muscle and weight fast. It’s great for active people doing intense workouts and needing extra calories and protein. |
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PERFECT SPORTS Clean Mass Gainer | 50g Whey Protein | Full Serving of Fruits & Veggies | 99% Removed Lactose & Gluten Free | 5 Pounds (Chocolate Ice Cream) |
This product is perfect for athletes and active individuals aiming to build muscle growth and boost energy. Its 3.5:1 carb-to-protein ratio fuels workouts, while gluten-free, low-lactose formula and real fruits and veggies support health. |
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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 mass and recover quickly after intense workouts. It’s ideal for those who need high calories and a balanced carb-protein mix to fuel their training goals. |
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MuscleMeds Carnivor Mass Anabolic Beef Protein Gainer, Big Steer, Vanilla, 15 Pounds |
MuscleMeds Carnivor Mass is ideal for athletes or fitness enthusiasts aiming to build lean muscle and boost energy. Its high-calorie formula with 50g beef protein and 5g creatine supports muscle growth and strength gains. |
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MuscleMeds Carnivor Mass Anabolic Beef Protein Gainer, Chocolate Fudge, 10.4 Pounds,Brown,003679 |
Anyone aiming to build muscle mass and boost strength needs this product. Stomach-friendly, lactose-free, and gluten-free, it delivers high-calorie nutrition with creatine and BCAAs for recovery. |
Detailed Reviews
Discover the top 15-serving mass gainers packed with high-calorie nutrition to fuel muscle growth and energy. Each formula blends premium protein, complex carbs, and essential vitamins for proven results. With smooth texture, quality-tested ingredients, and flavor-packed options, these gainers make bulking simple, effective, and enjoyable.
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 is a high-calorie weight gainer with 1,250 calories per serving. It packs 50 grams of protein and over 250 grams of carbs to fuel muscle growth and energy. This vanilla powder blends easily to help you gain weight the healthy way.
The formula includes 25 vitamins & minerals, plus creatine and glutamine for strength and recovery. It’s designed for those struggling to eat enough, offering a simple way to boost nutrition. Note: Keep it cool! Heat or sunlight may damage the product during delivery.
Mix with fruits, nuts, or peanut butter in a blender for a tasty, calorie-rich shake. 12-pound tub may vary in packaging but always delivers trusted quality.
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Perfect For:
This weight gainer is perfect for anyone looking to build muscle and gain healthy weight. It’s great for active people who need extra calories, protein, and nutrients to fuel their goals.
Ready to Purchase?
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 delivers 580 calories and 30g of protein per serving. It’s naturally flavored, gluten-free, and free from artificial additives or added sugars.
Premium Proteins blend whey, milk, and casein for muscle support. Multi-Source Carbs use quinoa, blueberry, and rice bran for energy. Third-Party Tested ensures safety and quality.
Mixes easily with water, milk, or juice for fast preparation. Made in the USA with strict quality standards for trusted results.
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Perfect For:
Athletes and active individuals seeking lean muscle growth will find this ideal. It offers 30g protein, 580 calories, and 101g carbs per serving with clean ingredients. No added sugars or artificial additives, plus third-party testing ensures safety. Perfect for post-workout recovery or daily energy needs.
Ready to Purchase?
3. Mutant Mass Weight Gainer Protein Powder – Mass Builder for Bulking and Lean Mass Gainer, The Weight Gainer Men Need to Bulk up – 15 Pound – Triple Chocolate
Mutant Mass Weight Gainer is a powerful bulking supplement designed for men who want to gain lean mass. It packs 1100 calories per serving with 56 g of pure protein and 192 g of clean carbs.
This enhanced gainer includes BCAAs, EAAs, and waxy maize to support muscle growth and bulking. It’s made with natural whole foods like oats, sweet potato, and avocado for quality nutrition.
Great taste, gold-standard quality, and easy to use. Perfect for bulking up and building strength.
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Perfect For:
This product is perfect for men wanting to bulk up with lean mass. It’s made for those seeking high protein, clean carbs, and natural whole-food ingredients in a gourmet-tasting shake.
Ready to Purchase?
4. Mutant Mass | Weight Mass Gainer Protein Powder – high Calorie Protein Powder for Muscular Mass – Vanilla Ice Cream – 15 Pound
Mutant Mass is a high-calorie protein powder designed to help you gain muscular mass. Each serving packs 1100 calories and 56 grams of pure protein. It’s perfect for those looking to bulk up with quality nutrition.
Made with natural whole foods, this powder includes ingredients like barley, sweet potato, and rolled oats. It also contains healthy fats from avocado, coconut oil, and flaxseed.
With a gourmet vanilla ice cream flavor, it tastes great while delivering essential nutrients. It’s enhanced with BCAAs and EAAs to support growth and recovery.
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Perfect For:
This product is perfect for active individuals aiming to build lean muscle mass and boost high-calorie needs. It’s ideal for those seeking clean carbs, 56g protein, and BCAAs/EAAs in every serving, made with natural whole-food ingredients and a gourmet taste.
Ready to Purchase?
5. 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 is a high-calorie weight gainer made for intense training. It packs 1200 calories per serving to fuel muscle growth and energy. The 4:1 carb-to-protein ratio supports recovery and strength gains.
This powder blends 50g of multi-source protein with amino acids for muscle repair. Plus, 10g of fiber aids digestion and keeps you feeling full longer.
The rich chocolate milkshake flavor mixes easily with milk or water. Each 10.38-pound tub gives you 15 servings for consistent results. BSN TRUE-MASS is built to help you gain mass and crush fitness goals.
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Perfect For:
BSN TRUE-MASS is perfect for active people needing high-calorie nutrition to fuel muscle growth. It offers 50g protein, 4:1 carbs-to-protein, and 10g fiber per serving to boost energy and support recovery.
Ready to Purchase?
6. 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 is packed with nutrients to fuel your goals.
It offers 1200 calories per serving, the highest from BSN. The 4:1 carb-to-protein ratio supports energy and growth. Perfect for those who need maximum fuel.
With 50g of protein and 7g of fiber, it’s a complete solution. The ultra-premium formula ensures quality results. Try Vanilla Ice Cream flavor for a delicious boost.
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Perfect For:
This product is perfect for anyone who wants to gain muscle and weight fast. It’s great for active people doing intense workouts and needing extra calories and protein.
Ready to Purchase?
7. 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 a powerful all-in-one supplement. Each scoop packs 12.5g of whey protein, 42g of complex carbs, and 8 key vitamins & minerals. It’s gluten-free, virtually lactose-free, and made in a peanut-free facility.
This formula includes 11 concentrated fruits & veggies, offering real food nutrition. With no added sugar and a 3.5:1 carb-to-protein ratio, it’s perfect for muscle growth and high-intensity recovery.
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Perfect For:
This product is perfect for athletes and active individuals aiming to build muscle growth and boost energy. Its 3.5:1 carb-to-protein ratio fuels workouts, while gluten-free, low-lactose formula and real fruits and veggies support health.
Ready to Purchase?
8. 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 a weight gainer made for intense training. It has 1200 calories per serving and a 4:1 carbs to protein ratio.
This powder gives 50g of protein per serving from multiple sources. It also has 8g of fiber for digestion and a mix of amino acids. The strawberry milkshake flavor is tasty, with 15 servings per tub.
The tub weighs 10.25 pounds and is easy to mix. It’s ideal for post-workout recovery or adding calories daily. BSN TRUE-MASS aims to boost muscle growth and energy for tough workouts.
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Perfect For:
BSN TRUE-MASS Weight Gainer is perfect for anyone looking to gain muscle mass and recover quickly after intense workouts. It’s ideal for those who need high calories and a balanced carb-protein mix to fuel their training goals.
Ready to Purchase?
9. MuscleMeds Carnivor Mass Anabolic Beef Protein Gainer, Big Steer, Vanilla, 15 Pounds
MuscleMeds Carnivor Mass is a high-calorie protein gainer. It packs 1250 calories per serving to fuel muscle growth. The formula blends 50g hydrolyzed beef protein Isolate+ with zero sugar carbs.
This supplement supports energy and recovery. 255g sugar-free carbohydrates provide long-lasting fuel. Chromium and 4-hydroxyisoleucine help manage insulin and carb balance. 5g creatine per serving boosts strength and performance.
Vanilla flavor mixes easily into drinks. It’s ideal for athletes or active people. The 15-pound tub offers a big supply for daily use.
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Perfect For:
MuscleMeds Carnivor Mass is ideal for athletes or fitness enthusiasts aiming to build lean muscle and boost energy. Its high-calorie formula with 50g beef protein and 5g creatine supports muscle growth and strength gains.
Ready to Purchase?
10. MuscleMeds Carnivor Mass Anabolic Beef Protein Gainer, Chocolate Fudge, 10.4 Pounds,Brown,003679
MuscleMeds Carnivor Mass is a beef protein isolate weight gainer. It’s the #1 selling beef protein brand worldwide.
Each serving has 50g of protein and 700 calories to fuel muscle growth. It includes high-impact carbs and low fat for energy and recovery. Creatine and BCAAs support strength and muscle repair.
This formula is lactose-free, sugar-free, and gluten-free for easy digestion. It’s made with hydrolyzed beef protein isolate for quick absorption. Perfect for those seeking a non-dairy protein source to build mass.
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Perfect For:
Anyone aiming to build muscle mass and boost strength needs this product. Stomach-friendly, lactose-free, and gluten-free, it delivers high-calorie nutrition with creatine and BCAAs for recovery.
Ready to Purchase?
Buying Guide
Choosing the right mass gainer is key to fueling your muscle growth. This guide makes it simple.
Factors to Consider When Buying a 15-Serving Mass Gainer:
- Calories per Serving: Look for high-calorie options (500-1250 calories) to support weight gain and muscle growth.
- Protein Content: Aim for 30-50g of protein per serving to build and repair muscles effectively.
- Carbohydrates: Choose complex carbs (100-250g) for sustained energy and recovery.
- Quality Ingredients: Opt for natural, clean ingredients like whole foods, whey, or plant-based proteins.
- Taste and Mixability: Pick a flavor you enjoy and ensure it blends easily with water, milk, or smoothies.
- Added Nutrients: Consider products with vitamins, minerals, BCAAs, or creatine for extra benefits.
- Dietary Needs: Check for gluten-free, lactose-free, or vegan options if needed.
- Brand Reputation: Choose trusted brands with third-party testing for safety and quality.