Best High Fiber Sports Nutrition Weight Gainers in 2026

10.7 grams of BCAAs as building blocks, including 5.1g Leucine, as building blocks to help activate Muscle Protein Synthesis

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1310 calories and 245g carbs per serving to help even the hardest gainers pack on mass

High calorie weight gainer: 1,260 calories per 2-scoop serving

50 grams of blended protein per serving

Over 252 of carbohydrates per serving

Vitamin C and Zinc Provides Immune Support along with Vitamin E

High-Quality Proteins: Pro Gainer is comprised of high biological value proteins, which means they are easily digested and absorbed so they provide a full complement of amino acids to support the rebuilding process. Each serving of Pro Gainer provides a 60-gram dose of premium muscle-building protein made from 7 unique sources.

Complex Carbohydrates & Lipids: Carbohydrates and lipids (fats and oils) provide sustained energy that help prevent proteins from being burned as fuel. Each serving of Pro Gainer provides 85 grams of carbohydrates and 4-5 grams of fiber with only 5 grams of sugar. In addition Pro Gainer supplies medium chain triglycerides (MCTs) and other energy-dense lipids.

NOW Sports products are comprehensively tested so you can trust that our products are pure and effective for every level of athletics.

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COMPLEX CARBOHYDRATE: Carbo Gain is pure maltodextrin, a complex carbohydrate derived from non-GMO corn.

Safe And Effective FIRST

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

In an industry with questionable legislation, RIVALUS raises the bar for standards and quality far beyond the legal requirement or government regulatory bodies.

ONLY FIVE INGREDIENTS: Naked Whey, Naked Casein, Organic Maltodextrin (made from gluten free organic tapioca), Organic Coconut Sugar, and Organic Raw Cacao. Chocolate 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, 251g of Carbs, 1,360 Calories, 11.6g of BCAAs (branched-chain amino acids) per serving.

MULTI-PHASE CLEAN PROTEIN: All natural whey and casein provides your body with healthy amino acids to keep protein synthesis up throughout the day.

ENHANCED GAINER SUPPLEMENT | Mutant’s most popular weight gainer supplement that is packed with BCAAs/EAAs and waxy maize to help with growth and bulking.

PROTEIN CONTENT | It offers 1100 calories per serving plus 56 g of quality protein from whey isolate, concentrate and casein blend.

Made with Natural Whole Foods | Made from natural whole-foods to include barley, sweet potato, rolled oats, avocado, coconut oil, flaxseed, pumpkin seed and sunflower oil.

Safe And Effective FIRST

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

In an industry with questionable legislation, RIVALUS raises the bar for standards and quality far beyond the legal requirement or government regulatory bodies.

TRUE-MASS: 700 CALORIES PER SERVING – the extra nutrition your body needs to build mass in an extreme training program.

2:1 RATIO OF CARBS & PROTEIN – provide your body a high-quality mix of carbs and protein to support your mass gaining goals

46G-50G PROTEIN FROM ULTRA-PREMIUM PROTEIN SOURCES – whey protein concentrate, calcium caseinate, milk protein isolate, whey protein isolate, micellar casein, hydrolyzed whey protein, and egg whites

All natural delicious flavor, flavored with sea salt, stevia, vanilla and monk fruit extract

Animal Meal Protein Blend - Pea Protein Isolate, Instant Egg White, Dried Whole Egg Protein, Beef Protein Isolate

Animal Meal Carb Blend - Sweet Potato Powder, Pea Starch, Tapioca Dextrose, Rolled Oats

ONLY FIVE INGREDIENTS: Pea Protein Powder, Organic Rice Protein Powder, Organic Maltodextrin (made from gluten free organic tapioca) Organic Coconut Sugar and Organic Cacao. Chocolate Naked Vegan Mass contains no artificial sweeteners, flavors, or colors and is GMO Free, Soy Free, Gluten Free, and Dairy Free with no rBGH or rBST.

VEGAN NUTRITION: Each serving of our chocolate vegan weight gain powder contains 50g of Protein, 237g of Complex Carbs, 1,280 Calories and 10.3g of BCAAs (branched-chain amino acids). To ensure a complete amino acid profile, the ratio of pea to rice protein is 2:1.

PREMIUM COMPLEX CARBOHYDRATES: Unlike other chocolate vegan weight gainer supplements, Chocolate Naked Vegan Mass does not use wheat based carbohydrates, instead using gluten-free organic tapioca maltodextrin for a clean source of complex carbohydrates.

Contains one (1) 5 pound cannister (about 14 servings) of Muscle Milk Pro Series Gainer Protein Powder Supplement. Packaging may vary. Shaker bottle sold separately

Key Features Muscle Milk Gainer Powder Contains 32 Grams of Protein, 3 Grams of Leucine From Milk Proteins, and 650 Calories in Every 4 Scoops (162g), the Recommended Usage for Individuals Looking to Build Size and Gain Muscle Mass

Usage Muscle Milk Gainer Powder Can Be Used Pre Workout, Post Workout or as an Anytime Protein Rich Meal Option or Snack

Contains one (1) 5 pound cannister (about 14 servings) of Muscle Milk Pro Series Gainer Protein Powder Supplement. Packaging may vary. Shaker bottle sold separately

KEY FEATURES – Based on 1 serving, Muscle Milk Pro Series Gainer contains 32g high-quality protein, 109g carbs, 650 calories, 2g MCTs, and an excellent source of 20 vitamins and minerals

VERSATILE AND EASY-TO-MIX – Muscle Milk Pro Series Gainer dissolves easily in water; just mix 4 scoops into 10-16 fluid ounces of water using a shaker bottle. Shaker bottle sold separately

MASS GAINER PROTEIN POWDER – MuscleTech Mass-Tech Elite is an advanced muscle mass gainer for those who have struggled with adding size, are in their bulking phase or want to break through their strength plateaus..

MUSCLE BUILDER – Mass-Tech Elite delivers 20% better amino acid absorption. ProHydrolase is designed to maximize the performance benefits of protein assisting the body in absorbing EAAs for building muscle and improving muscle recovery..

SUPERIOR WEIGHT GAINER – It’s clean and simple. Delivers more protein (80g), better calories and bigger results than other mass gainers, with the macros you need to pack on quality mass

Muscular Health, Function, and Performance*: Genius Muscle by The Genius Brand optimizes every aspect required for muscle growth with measurable results in men and women.* Made in the USA with a 100% transparent formula. Naturally flavored and sweetened with no banned substances. Strawberry Vanilla Cream flavor. 30 scoops per container.

Increase Power and Endurance*: Peak O2, an organic combination of 6 Ayurvedic mushrooms, has been shown to improve workout duration, strength, time to exhaustion, and much more.* Mediator Phosphatidic Acid has been shown to provide double the muscle mass gain, increased strength, and fat mass loss in individuals engaged in weight-bearing exercise and adequate protein intake.*

Healthy Muscles, Healthy Life: Build ageless muscle without altering hormone function.* Premium ingredient MyoeDge combines HMB with Vitamin D to promote muscle health, improve lean muscle mass, increase muscle function, and optimize bone quality.*

MASS GAINER PROTEIN POWDER – Mass-Tech Extreme 2000 is a 5-in-1 hardcore mass gainer designed for individuals looking to put on extreme mass. Mass-Tech Extreme 2000 has everything you need to bulk up, pack on muscle and smash through strength plateaus

MUSCLE BUILDER – Mass-Tech Extreme 2000 delivers more protein per serving than most other mass gainers. With a whopping 80g of premium protein, your body will have all the building blocks it needs to build the size and muscle you’re looking for

SUPERIOR WEIGHT GAINER – It’s clean and simple. Delivers more protein (80g), better calories and bigger results than other mass gainers, with the macros you need to pack on quality mass

MASS GAINER PROTEIN POWDER – 100% Mass Gainer is specially formulated for performance athletes looking to increase their dietary protein, carbohydrates and overall calorie intake. 100% Mass Gainer is a premium weight gainer for increased size and strength

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

SUPERIOR WEIGHT GAINER – MuscleTech 100% Mass Gainer is packed with high-quality protein and mass-producing calories, plus muscle builder creatine monohydrate, a proven anabolic driver for faster mass and strength gains. This superior formula will help you get bigger and stronger

UNLOCK THE KEY TO MUSCLE GROWTH - Sports research has shown that 30 minutes after your workout your body is primed for a post workout recovery drink. Aftershock, with 34g of lactose free, fast digesting proteins, rapid absorption carbohydrates, and a perfect blend of amino energy is ideal for improving gains, recovery and endurance.

SURGE PAST GENETIC LIMITATIONS - Formulated with our patented high absorption MagnaPower, magnesium creatine chelate, and magnesium glycyl glutamine, this blend is designed to help you get the most out of every workout.

AMAZING PERFORMANCE - Contains vital nutrients in the right amounts critical for muscle growth and recovery. Whey protein isolate and whey peptides support lean muscle mass growth and BCAAs amino acids help in recovery, the result, decreased muscle soreness, reduced exercise fatigue and increased lean and strong muscles.

MASS GAINER PROTEIN POWDER – Mass-Tech Extreme 2000 is a 5-in-1 hardcore mass gainer designed for individuals looking to put on extreme mass. Mass-Tech Extreme 2000 has everything you need to bulk up, pack on muscle and smash through strength plateaus

MUSCLE BUILDER – Mass-Tech Extreme 2000 delivers more protein per serving than most other mass gainers. With a whopping 80g of premium protein, your body will have all the building blocks it needs to build the size and muscle you’re looking for

SUPERIOR WEIGHT GAINER – It’s clean and simple. Delivers more protein (80g), better calories and bigger results than other mass gainers, with the macros you need to pack on quality mass

Gain Weight FAST Appetite booster with B12 Gainer. Works great for Women Men Kids and the frail'. Naturally increases Appetite Gaining weight fast! 3rd Party APPROVED

Powerful ingredients that will Boost your appetite FAST. Help Restore maximum nutritional absorption Boost your muscle and weight with a complete dose a powerful weight gain product available in delicious disovlable for complete absorption. Stop being the skinny Kid, .Fill those Jeans and Bathing suits. Appetite

Fast Weight Gainer Is your Family member underweight and need to eat more, stimulate their appetite? Are you kids or Parents in need of eating more? Do you want more curves? Weight Gainer fast formula available. stimulates Health appetite to gain weight FAST! Improves Nutritional absorption to Maximize natural weight gain. Boost your loved ones Appetite. If your or Loved one is Underweight Scrawny need help to improve health, Appetite, B12 gaainer is the product for you! Appetite cur

CURVE ENHANCING SHAKE: Boost your curves! Gluteboost ThickFix protein powder helps you put on weight in all the right places. Our proprietary, body volumizing grass-fed whey protein formula with amino acids supports muscle mass and enhances your feminine curves faster than just diet and exercise.

BOOST YOUR GAINS: Maximized muscle mass and healthy curves depend on higher caloric intake. ThickFix's muscle-focused, protein-based powder with amino acids boosts your calories the right way, giving you more to work with in and out of the gym. Take daily for the best results.

FAST ENLARGEMENT: Get the voluptuous curves of your dreams with our proprietary ThickFix protein shake. Confidently fill out your figure with a firmer, more developed butt, thighs, and legs sooner. Use ThickFix as a supplement to your regular meals, taking 1-3 times per day to increase your calories and achieve your desired body weight.

ALL NATURAL WEIGHT GAINER: Gluteboost ThickFix XXL capsules supports you to put on weight in all the right places. Our proprietary, body-volumizing blend of all-natural botanical ingredients and protein with amino acids supports muscle mass and accentuates your feminine curves.

CURVE & MUSCLE MASS BUILDER: Packed with vegan protein, this supplements for muscle gain is specifically formulated to enhance muscle curves and support bodybuilding goals, ensuring a balanced approach to nutrition and fitness for women. Curve & muscle building support to achieve fitness goals with energy-packed nutrition.

ENERGY & STAMINA BOOSTER: Specially formulated for women, it is designed to naturally boost your energy levels so that you can workout longer and harder.

ONLY FIVE INGREDIENTS: Naked Whey, Naked Casein, Organic Maltodextrin from gluten free organic tapioca, Organic Coconut Sugar and Vanilla. Contains no artificial sweeteners, flavors or colors. GMO Free, No rBGH or rBST, Soy Free and Gluten Free.

MAXIMUM NUTRITION: 50g of Protein, 251g of Carbs, 1,260 Calories and 11.5g of BCAAs (branched-chain amino acids) per serving.

MULTI-PHASE CLEAN PROTEIN: Grass-fed whey and casein provide your body with healthy amino acids to keep protein synthesis up throughout the day. Use with a high calorie diet to gain weight and transform yourself from a hard gainer to a pro gainer.

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.

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.