10 Best Weight Gaining Protein Powder of 2026

Last updated on 04/03/2026
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Best Choice
1
9.9
Exceptional
Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 12 Pound (Packaging May Vary)
Optimum Nutrition

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

Why we love it
  • High calorie content for gains.
  • Packed with protein power.
  • Versatile for customized shakes.
Main Highlights
  • HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving
  • 50 grams of blended protein per 2-scoop serving
  • Over 250 grams of carbohydrates per 2-scoop serving
  • With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support
  • MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential
9.9
Exceptional
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🛡️Trusted by 100M+ UsersWhy?
Best Value
2
9.7
Exceptional
NAKED Mass - Natural Weight Gainer Protein Powder - 8 LB Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving
NAKED

NAKED Mass - Natural Weight Gainer Protein Powder - 8 LB Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving

Why we love it
  • Pure ingredients, no additives.
  • High protein for effective bulking.
  • Versatile for shakes and recipes.
Main Highlights
  • ONLY THREE INGREDIENTS: Naked Whey, Naked Casein and Organic Maltodextrin (made from gluten free organic tapioca). Naked Mass contains no artificial sweeteners, flavors, or colors and is GMO Free, No rBGH or rBST, Soy Free and Gluten Free.
  • MAXIMUM NUTRITION: 50g of Protein, 252g of Carbs, 1,250 Calories, 11.5g of BCAAs (branched-chain amino acids) per serving and only 5g sugar - compare vs other weight gain supplements for bulking. As an NSF Certified protein powder, Naked Mass is verified for purity and safety.
  • MULTI-PHASE CLEAN PROTEIN: Keep protein synthesis up by combining fast release grass-fed whey with slow-digesting micellar casein. Plus, get the healthy amino acids your body needs. Combine with a high-calorie diet and exercise to gain weight and transform yourself from a hard gainer to a pro gainer.
  • PREMIUM COMPLEX CARBOHYDRATES: Unlike other weight gainer supplements that use wheat-based maltodextrins, Naked Mass is a serious, true mass gainer and uses gluten free organic tapioca maltodextrin for clean source complex carbohydrates.
  • BEST WEIGHT GAINER SHAKES AND RECIPES: Our unflavored super mass gainer protein powder is versatile for making smoothies and recipes. Boost calories and give your body optimum nutrition by adding Naked Mass to homemade protein bars, shakes, and more.
9.7
Exceptional
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3
9.5
Superb
Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Vanilla, 6 Pound (Packaging May Vary)
Optimum Nutrition

Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Vanilla, 6 Pound (Packaging May Vary)

Why we love it
  • High calorie content fuels growth.
  • Packed with essential nutrients.
  • Mix in tasty ingredients easily.
Main Highlights
  • HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving
  • 50 grams of blended protein per 2-scoop serving
  • Over 250 grams of carbohydrates per 2-scoop serving
  • 22 vitamins and minerals including Vitamin C, Vitamin D, and Zinc to provide immune support
  • With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support
  • MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential
9.5
Superb
Amazon Logo
4
9.4
Superb
MuscleMeds CARNIVOR Mass Gainer Beef Protein Isolate Shake, 50 Grams Protein, 125 Grams Carbs, 0 Fat, 0 Sugar, Lactose Free, Halal Certified, Chocolate Peanut Butter, 6 Pound
MuscleMeds

MuscleMeds CARNIVOR Mass Gainer Beef Protein Isolate Shake, 50 Grams Protein, 125 Grams Carbs, 0 Fat, 0 Sugar, Lactose Free, Halal Certified, Chocolate Peanut Butter, 6 Pound

Why we love it
  • High-speed muscle growth support.
  • Optimizes insulin for recovery.
  • Ultra-concentrated beef protein source.
Main Highlights
  • High-Speed Macronutrient Delivery: Proteins and carbohydrates that are absorbed at high speeds can help spike your blood amino acid and glucose levels. In turn, this stimulates the potential for higher speeds of protein and glycogen synthesis (anabolism), which can result in faster gains in muscle mass.
  • Properly-Timed Insulin Optimization: Insulin is a powerful muscle growth and recovery hormone, so much so that pro bodybuilders and athletes seek to increase their natural product and proclaim amazingly fast gains. Yes, insulin is that anabolic and effectively triggers muscle growth, especially in combination with a fast acting protein. Read on to discover how CARNIVOR MASS can help you reap insulin’s extreme muscle building effects.
  • 350% more concentrated in amino acids than steak and more concentrated than whey, with no fat or cholesterol, and without gelatin or collagen. Plus, CARNIVOR MASS is further enhanced with BCAAs for additional anabolic power.
  • Over 700 Calories, 50g of Beef Protein Isolate, 125g Carbs & Low Fat
  • World's First and #1 Selling Beef Protein Brand
9.4
Superb
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5
9.3
Superb
Optimum Nutrition GS Pro Gainer Weight Gainer Protein Powder, Double Chocolate, 5.09 Pounds (Packaging May Vary)
Optimum Nutrition

Optimum Nutrition GS Pro Gainer Weight Gainer Protein Powder, Double Chocolate, 5.09 Pounds (Packaging May Vary)

Why we love it
  • Supports immune health naturally.
  • Optimally fuels post-workout recovery.
  • Convenient mixing for all users.
Main Highlights
  • Vitamin C and Zinc Provides Immune Support along with Vitamin E
  • 650 CALORIES - delivering calories that count to support your gains
  • 60G PROTEIN BLEND - support your mass gaining goals with high-quality protein
  • 85G CARBOHYDRATES - help restore energy levels
  • 7g SUGAR (OR LESS)
  • 32 VITAMINS & MINERALS - because the nutrient needs of very active individuals may be greater than those of less active people
  • GREAT POST-WORKOUT OR BETWEEN MEALS
  • MIXES EFFORTLESSLY - use a blender, shaker, or spoon to easily mix
  • AVAILABLE IN 5 LB TUBS OR 10 LB BAGS
9.3
Superb
Amazon Logo
6
9.1
Superb
Dymatize Super Mass Gainer Protein Powder, Gourmet Vanilla, 52g Protein, 1g Creatine, 1280 Calories, 10.7g BCAAs, 245g Carbs, Contains Whey Protein Powder, Isolate, and Casein (8 Servings)
Dymatize

Dymatize Super Mass Gainer Protein Powder, Gourmet Vanilla, 52g Protein, 1g Creatine, 1280 Calories, 10.7g BCAAs, 245g Carbs, Contains Whey Protein Powder, Isolate, and Casein (8 Servings)

Why we love it
  • High protein supports muscle growth.
  • Calorie-dense for effective gains.
  • Enhanced with creatine for strength.
Main Highlights
  • 52G PROTEIN: Every servings contains 52g of protein to support muscle growth, repair, and recovery. If your goal is gaining muscle size and strenth, then SMG is your perfect workout parther. while recovering from intense workouts and pushing limits in the gym
  • CALORIE-DENSE FORMULA: With 1,280 calories per serving, this weight gainer offers a substantial caloric boost for individuals aiming to gain muscle mass and meet their energy needs
  • ENHANCED WITH CREATINE AND NUTRIENTS: Each serving provides 1g of creatine to support the increase in power and strength you need to maximize training. Plus 14 essential vitamins and minerals, including Vitamin C, E, and calcium, to support overall health and recovery
  • CONTINUOUS GROWTH: Dymatize Super Mass Gainer combines fast- and slow-digesting proteins, like whey and casein, to fuel muscle growth and recovery with sustained protein delivery for long-lasting results for men and women
  • YOUR WAY OF GAINING: Get creative by blending mass gainer into smoothies with fruits, peanut butter, and oats. It’s also perfect for adding to protein bars, cookies, and pancakes for delicious, calorie-packed treats
9.1
Superb
Amazon Logo
7
9.1
Superb
Dymatize Super Mass Gainer Protein Powder, 1290 Calories & 52g Protein, Mixes Easily, Tastes Delicious, Fruity Pebbles, 6 Pound (8 Servings)
Dymatize

Dymatize Super Mass Gainer Protein Powder, 1290 Calories & 52g Protein, Mixes Easily, Tastes Delicious, Fruity Pebbles, 6 Pound (8 Servings)

Why we love it
  • Delicious Fruity Pebbles flavor.
  • High protein for muscle growth.
  • Packed with essential nutrients.
Main Highlights
  • Pebbles Power to help you get those GAINS! NEW Super Mass Gainer in Fruity Pebbles flavor.
  • 10.7 grams of BCAAs as building blocks, including 5.1g Leucine, as building blocks to help activate Muscle Protein Synthesis.
  • 1290 calories and 248g carbs per serving to help even the hardest gainers pack on mass
  • 52g protein per serving (a blend of fast and slow digesting proteins) to fuel your muscles throughout the day.
  • 14 vitamins and minerals to support muscle recovery.
9.1
Superb
Amazon Logo
8
9.0
Superb
Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 6 Pound (Packaging May Vary)
Optimum Nutrition

Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 6 Pound (Packaging May Vary)

Why we love it
  • High calorie for effective gains.
  • Protein boost supports muscle growth.
  • Versatile for personalized nutrition.
Main Highlights
  • HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving
  • 50 grams of blended protein per 2-scoop serving
  • Over 250 grams of carbohydrates per 2-scoop serving
  • With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support
  • MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential
9.0
Superb
Amazon Logo
9
8.9
Excellent
Save 22%
Optimum Nutrition Gold Standard 100% Whey Protein Powder, Vanilla Ice Cream, 2 Pound (Packaging May Vary)
Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Protein Powder, Vanilla Ice Cream, 2 Pound (Packaging May Vary)

22% Off
Why we love it
  • Trusted quality in new packaging.
  • Supports lean muscle growth.
  • Delicious chocolate flavor, low carbs.
Main Highlights
  • 24 g High-Quality Whey Protein per Scoop – 100% of the protein from whey for a fast-absorbing, complete protein source that supports muscle maintenance and growth.
  • 5.5 g Naturally-Occurring BCAAs + 11g of naturally occurring EAAs – Delivers essential amino acids including leucine, isoleucine, and valine to support post-workout muscle recovery, muscle strength and muscle building when taken over time with regular resistance training.
  • Low Sugar, Low Carb, Low Fat — Ideal for Lean Muscle or Cutting Phases – With just ~1 g sugar, ~3 g carbs per serving, and whey protein isolate as the primary ingredient with further carbs and fat “isolated” out. It’s a high quality choice for athletes focused on lean muscle, weight management, or body-composition goals.
  • Instantized & Easy-Mix Formula (Great Mixability) – Designed to dissolve smoothly in water, milk, or smoothies with a spoon, shaker, or blender — perfect for fast post-workout shakes or convenient protein boosts.
  • Trusted Brand, Tested Quality & Versatile Use – For 35 years, athletes have trusted Optimum Nutrition to fuel their training. Gold Standard Whey is the trusted choice for gym-goers, athletes, and everyday fitness enthusiasts worldwide — use post-workout or as a protein supplement anytime.
8.9
Excellent
Save 22%
Amazon Logo
10
8.8
Excellent
Dymatize Super Mass Gainer Protein Powder, Rich Chocolate, 52g Protein, 1g Creatine, 1280 Calories, 10.7g BCAAs, 245g Carbs, Contains Whey Protein Powder, Isolate, and Casein (8 Servings)
Dymatize

Dymatize Super Mass Gainer Protein Powder, Rich Chocolate, 52g Protein, 1g Creatine, 1280 Calories, 10.7g BCAAs, 245g Carbs, Contains Whey Protein Powder, Isolate, and Casein (8 Servings)

Why we love it
  • 52g of protein per serving.
  • Calorie-dense for rapid gains.
  • Enhanced with creatine and nutrients.
Main Highlights
  • 52G PROTEIN: Every servings contains 52g of protein to support muscle growth, repair, and recovery. If your goal is gaining muscle size and strenth, then SMG is your perfect workout parther. while recovering from intense workouts and pushing limits in the gym
  • CALORIE-DENSE FORMULA: With 1,280 calories per serving, this weight gainer offers a substantial caloric boost for individuals aiming to gain muscle mass and meet their energy needs
  • ENHACED WITH CREATINE AND NUTRIENTS: Each serving provides 1g of creatine to support the increase in power and strength you need to maximize training. Plus 14 essential vitamins and minerals, including Vitamin C, E, and calcium, to support overall health and recovery
  • CONTINUOUS GROWTH: Dymatize Super Mass Gainer combines fast- and slow-digesting proteins, like whey and casein, to fuel muscle growth and recovery with sustained protein delivery for long-lasting results for men and women
  • YOUR WAY OF GAINING: Get creative by blending mass gainer into smoothies with fruits, peanut butter, and oats. It’s also perfect for adding to protein bars, cookies, and pancakes for delicious, calorie-packed treats
8.8
Excellent
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Related Deals You Might Like for Weight Gaining Protein Powder

📊We scanned 248 products
🔍
We reviewed the most relevant Weight Gaining Protein Powder offers across Amazon and leading retailers, covering major brands and models. Our shortlist features trusted names like Optimum Nutrition, NAKED, MuscleMeds, Dymatize, known for dependable quality and smart design.
⭐
To determine today's best Weight Gaining Protein Powder, we analyzed 1241 real customer and expert reviews, focusing on satisfaction, real-world performance and long-term reliability. We also weigh each review's relevance, authenticity and freshness for a fair comparison.

Here's what we found:

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

Our overall winner is Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate, 12 Pound (Packaging May Vary) by Optimum Nutrition. It stands out for the right balance of quality, performance and value.

✨ What sets it apart:
✓High calorie content for gains.
✓Packed with protein power.
✓Versatile for customized shakes.
💎 Best Value
NAKED Mass - Natural Weight Gainer Protein Powder - 8 LB Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving

The best value for most shoppers is NAKED Mass - Natural Weight Gainer Protein Powder - 8 LB Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving by NAKED, with consistently high satisfaction across expert and customer reviews.

💰 Best Deal
Optimum Nutrition Gold Standard 100% Whey Protein Powder, Vanilla Ice Cream, 2 Pound (Packaging May Vary)

The strongest deal right now for Weight Gaining Protein Powder is Optimum Nutrition Gold Standard 100% Whey Protein Powder, Vanilla Ice Cream, 2 Pound (Packaging May Vary) at Optimum Nutrition, currently at 22% off.

🔄Our Weight Gaining Protein Powder ranking is updated regularly to reflect new releases and price changes—check back for the latest picks and deals.