Health & Wellness

The Best Sports Nutrition Weight Gainers

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Our picks are based on Amazon bestseller rankings, Amazon customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

Gaining weight effectively and healthily requires the right nutritional support. Weight gainers are formulated to provide a concentrated source of calories, protein, and carbohydrates to aid in muscle building and overall weight increase. Choosing a product with quality ingredients tailored to your needs is crucial for achieving your goals without compromising your health.

SaleNo. 1
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 6LB
  • HIGH-CALORIE MASS GAINER FOR SIZE & STRENGTH:Delivers over 1,200 calories per 2-scoop serving to support weight gain, bulking phases, and increased daily energy intake when diet alone isn’t enough
  • 50G PREMIUM PROTEIN BLEND: Provides 50 grams of blended protein per serving to help support muscle repair, recovery, and lean mass development after intense training
  • HIGH-CARB ENERGY SUPPORT: Packed with over 250 grams of carbohydrates per serving to replenish glycogen stores, fuel workouts, and support sustained energy throughout the day
  • ADDED VITAMINS & MINERALS FOR DAILY NUTRITION: Includes 20+ essential vitamins and minerals, including Vitamin C and Zinc, to help support overall nutritional balance and immune system function
SaleNo. 2
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Chocolate, 6LB
  • HIGH-CALORIE MASS GAINER FOR SIZE & STRENGTH:Delivers over 1,200 calories per 2-scoop serving to support weight gain, bulking phases, and increased daily energy intake when diet alone isn’t enough
  • 50G PREMIUM PROTEIN BLEND: Provides 50 grams of blended protein per serving to help support muscle repair, recovery, and lean mass development after intense training
  • HIGH-CARB ENERGY SUPPORT: Packed with over 250 grams of carbohydrates per serving to replenish glycogen stores, fuel workouts, and support sustained energy throughout the day
  • ADDED VITAMINS & MINERALS FOR DAILY NUTRITION: Includes 20+ essential vitamins and minerals, including Vitamin C and Zinc, to help support overall nutritional balance and immune system function
No. 3
Optimum Nutrition Gold Standard Pro Gainer Protein, Double Chocolate, 5 LB
  • 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
No. 4
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Chocolate 12LB
  • HIGH-CALORIE MASS GAINER FOR SIZE & STRENGTH:Delivers over 1,200 calories per 2-scoop serving to support weight gain, bulking phases, and increased daily energy intake when diet alone isn’t enough
  • 50G PREMIUM PROTEIN BLEND: Provides 50 grams of blended protein per serving to help support muscle repair, recovery, and lean mass development after intense training
  • HIGH-CARB ENERGY SUPPORT: Packed with over 250 grams of carbohydrates per serving to replenish glycogen stores, fuel workouts, and support sustained energy throughout the day
  • ADDED VITAMINS & MINERALS FOR DAILY NUTRITION: Includes 20+ essential vitamins and minerals, including Vitamin C and Zinc, to help support overall nutritional balance and immune system function
No. 5
Dymatize Super Mass Gainer, 52g Protein Powder, Gourmet Vanilla, 6 lb
  • 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...
  • 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...
  • 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
No. 6
Optimum Nutrition Gold Standard Pro Gainer Protein, Double Chocolate, 10 LB
  • High Protein Weight Gainer and Muscle Mass Gainer*
  • 650 CALORIES PER SERVING - delivering calories that count to support your gains
  • 60G OF PROTEIN BLEND PER SERVING- support your mass gaining goals with high-quality protein
  • MORE THAN 80G OF CARBOHYDRATES PER SERVING - help restore energy levels
No. 7
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 12LB
  • HIGH-CALORIE MASS GAINER FOR SIZE & STRENGTH:Delivers over 1,200 calories per 2-scoop serving to support weight gain, bulking phases, and increased daily energy intake when diet alone isn’t enough
  • 50G PREMIUM PROTEIN BLEND: Provides 50 grams of blended protein per serving to help support muscle repair, recovery, and lean mass development after intense training
  • HIGH-CARB ENERGY SUPPORT: Packed with over 250 grams of carbohydrates per serving to replenish glycogen stores, fuel workouts, and support sustained energy throughout the day
  • ADDED VITAMINS & MINERALS FOR DAILY NUTRITION: Includes 20+ essential vitamins and minerals, including Vitamin C and Zinc, to help support overall nutritional balance and immune system function
No. 8
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 3LB
  • HIGH-CALORIE MASS GAINER FOR SIZE & STRENGTH:Delivers over 1,200 calories per 2-scoop serving to support weight gain, bulking phases, and increased daily energy intake when diet alone isn’t enough
  • 50G PREMIUM PROTEIN BLEND: Provides 50 grams of blended protein per serving to help support muscle repair, recovery, and lean mass development after intense training
  • HIGH-CARB ENERGY SUPPORT: Packed with over 250 grams of carbohydrates per serving to replenish glycogen stores, fuel workouts, and support sustained energy throughout the day
  • ADDED VITAMINS & MINERALS FOR DAILY NUTRITION: Includes 20+ essential vitamins and minerals, including Vitamin C and Zinc, to help support overall nutritional balance and immune system function
No. 9
Dymatize Super Mass Gainer 52g Protein Powder, Rich Chocolate, 6 lb
  • 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...
  • 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...
  • 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
No. 10
Dymatize Super Mass Gainer, 52g Protein Powder, Rich Chocolate, 12 lb
  • 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...
  • 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...
  • 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

Last update on 2026-10-16 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Sports Nutrition Weight Gainers

Understanding Weight Gainers

Weight gainers are dietary supplements designed to help individuals consume a surplus of calories, essential for weight gain. They typically contain a blend of carbohydrates, protein, fats, vitamins, and minerals. The primary goal is to provide a convenient way to increase daily caloric intake, supporting muscle growth and recovery when combined with resistance training.

Key Ingredients to Look For

  • Carbohydrates: Complex carbohydrates are preferred for sustained energy release. Look for ingredients like oats, sweet potato powder, or maltodextrin.
  • Protein: Essential for muscle repair and growth. Whey protein, casein, and plant-based proteins (like pea or rice protein) are common. Aim for a balance of fast-digesting and slow-digesting proteins.
  • Fats: Healthy fats contribute to calorie density and hormone production. Sources like MCT oil or flaxseed oil are beneficial.
  • Vitamins and Minerals: Ensure the formula includes a range of micronutrients to support overall health during a bulking phase.

Consider Your Dietary Needs and Goals

Your individual caloric needs, macronutrient targets, and dietary restrictions will influence your choice. Athletes and individuals with very fast metabolisms may benefit from higher-calorie formulas. Those with lactose intolerance should opt for lactose-free or plant-based protein sources. Always consider your training intensity and frequency when selecting a gainer to complement your diet.

When to Use a Weight Gainer

Weight gainers are most effective when consumed as part of a balanced diet and consistent exercise routine. Common times to take them include post-workout to aid in recovery, between meals to boost caloric intake, or before bed to provide sustained nutrition overnight. Consistency is key to seeing results.

Frequently Asked Questions

Are weight gainers suitable for everyone?
Weight gainers are primarily designed for individuals who struggle to consume enough calories through whole foods to gain weight. They may not be necessary for those who can easily meet their caloric goals naturally.
What is the difference between a weight gainer and protein powder?
Protein powder primarily focuses on delivering protein for muscle repair and growth. Weight gainers contain a higher ratio of carbohydrates and calories, along with protein, to help increase overall caloric intake for weight gain.
How much weight can I expect to gain?
The amount of weight gained depends on many factors, including your diet, exercise routine, metabolism, and the specific product's caloric content. Consistent use alongside a calorie surplus and training is necessary for noticeable gains.
Can I take weight gainers without exercising?
While you can gain weight by consuming a calorie surplus without exercise, the weight gained may be primarily fat. For lean muscle mass gains, combining weight gainers with a resistance training program is highly recommended.
Are there any side effects of using weight gainers?
Some individuals may experience digestive discomfort, bloating, or weight gain that is not primarily muscle if caloric intake is too high without adequate training. Choosing a product with quality ingredients and following recommended serving sizes can help mitigate these issues.

How we compare Health & Wellness

1 Specifications: we compare the key features and specifications listed by the manufacturer and on Amazon.
2 Customer ratings: we take into account the average Amazon rating and the number of reviews.
3 Price: we check the current price and highlight notable deals.
4 Updates: comparisons are refreshed regularly as prices and availability change.

Our comparisons are reviewed and updated regularly to reflect the latest products and prices.

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